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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Stepper Motor 28BYJ-48 + ULN2003 Driver
28BYJ-48 ULN2003 5V stepper motor + ULN2003 driver board.
NVIDIA GeForce RTX 4060 Ti (8 GB)
Step up from the 4060 with more CUDA cores and higher clocks. 8 GB GDDR6, DLSS 3, AV1 encode. Comfortable 1440p performer in most modern titles.
Out of stockLG UltraGear 32GP850-B 32" 1440p Nano IPS 165Hz
32" QHD Nano IPS, 165Hz, 1ms. Step up in screen real estate.
Out of stockXL4015 5A Buck Converter Module
DC-DC step-down 4-38V to 1.25-36V, 5A, heatsink-mounted.
Out of stockXL6009 4A Boost Converter Module
DC-DC step-up 3-32V to 5-35V, 4A. For 12V→24V conversions.
2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 Lipo
[Step UP Buck Converter] 2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 The 2S 4A Type-C Lithium Battery Charging Module is a compact step-up charging board designed for charging 2-cell series (2S) 18650 Li-ion/Li-Po battery packs. It accepts a 3–6V DC input through USB Type-C and boosts the voltage to 8.4V, the required full-charge voltage for a 2S lithium battery pack. The 4A specification refers to the maximum input current version. According to available product specifications, the corresponding charging current is approximately 2.2A, rather than 4A. ⭐ Key Features Designed for 2S lithium-ion/Li-Po battery packs Suitable for 2 × 18650 cells connected in series USB Type-C input 3–6V DC input Recommended input: 3.7V / 5V Step-up/boost charging circuit 8.4V charging voltage 4A maximum input-current version Approximately 2.2A charging current Automatic recharge function Battery charging protection features Compact PCB design LED charging/status indication Suitable for DIY battery and portable-power projects 📋 Technical Specifications Product Type: 2S Lithium Battery Step-Up Charging Module Battery Configuration: 2S – 2 cells in series Compatible Battery: 3.6V/3.7V Li-ion / Li-Po Nominal Battery Pack Voltage: 7.4V Full-Charge Voltage: 8.4V Input Voltage: DC 3–6V Recommended Input: DC 3.7V / 5V Maximum Input Current: 4A Charging Current: Approximately 2.2A Charging Interface: USB Type-C Charging Mode: Constant-current / constant-voltage Board Size: Approximately 39 × 18 × 6.3mm Operating Temperature: -40°C to +85°C LED Indicators: Charging / fully charged or constant-voltage status 🔋 Charging Performance For the 2S 4A version: USB Type-C 5V → Boost Charging Module → 8.4V → 2S Battery Pack The module draws up to approximately 4A from the input, while the specified charging current is approximately 2.2A. This distinction is important when selecting the USB power adapter. 🔧 Applications 2S 18650 battery packs 7.4V Li-ion battery packs 2S Li-Po battery packs DIY power banks Portable electronics Bluetooth speaker battery systems Robotics projects Solar charging applications Electronic prototyping Portable audio equipment Electric fan projects Type-C rechargeable equipment Custom battery charging systems 🛠️ How It Works The module uses a boost/step-up charging circuit to convert the lower USB Type-C input voltage into the 8.4V charging voltage required for a 2S lithium battery pack. Example: 5V Type-C Input → Step-Up Circuit → 8.4V Charging Output → 2S 18650 Battery A 2S battery pack consists of two lithium cells connected in series: 3.7V + 3.7V = 7.4V nominal4.2V + 4.2V = 8.4V fully charged 💡 LED Indicators The module uses status indicators to show the charging condition: CR: Charging OK: Fully charged / constant-voltage stage ⚠️ Important Notes This module is intended for 2S battery packs only. Do not connect a single 18650 cell directly to the 8.4V charging output. The two cells should be properly matched and in good condition. Do not exceed the 6V maximum input voltage. A suitable Type-C power source is required to supply the necessary input current. The 4A rating is the input-current rating, not the battery charging current. The specified charging current for this 2S 4A version is approximately 2.2A. This charging module should not automatically be considered a replacement for a dedicated 2S BMS/protection board. Use appropriate battery protection where required. Check the PCB polarity and connection markings before connecting the battery. Do not short-circuit the input or output. Use properly matched lithium cells for safe and reliable charging. Keep the module adequately ventilated during higher-current operation. 📦 Package Includes 1 × 2S 4A Type-C Step-Up Boost Lithium Battery Charging Module – 8.4V
Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output
[Step UP Buck Converter] Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output The Type-C PD/QC/AFC Fast Charge Decoy Trigger Module is a compact USB Type-C power negotiation module designed to request a selected voltage from compatible USB Type-C fast chargers and power banks. It supports QC 2.0/3.0, AFC, PD 2.0 and PD 3.0 protocols, allowing compatible USB-C power sources to provide higher voltage outputs such as 5V, 9V, 12V, 15V or 20V. This module is useful for DIY electronics projects where a USB Type-C PD/QC charger needs to be used as a DC power source for equipment that does not have native USB-C fast-charging support. ⭐ Key Features USB Type-C fast-charge decoy/trigger module Supports PD 2.0 / PD 3.0 Supports QC 2.0 / QC 3.0 Supports Samsung AFC Fixed selectable voltage output Supports 5V / 9V / 12V / 15V / 20V output options Negotiates the required voltage from a compatible charger Suitable for USB-C power banks and PD adapters LED indicators for operating/status indication Compact and lightweight PCB design Useful for DIY power supply and electronics projects Plug-and-play operation with compatible USB-C power sources 📋 Technical Specifications Product Type: USB Type-C Fast Charge Trigger / Decoy Module Input Connector: USB Type-C Input Source: USB-C PD/QC/AFC compatible charger or power bank Supported Protocols: PD2.0, PD3.0, QC2.0, QC3.0, AFC Output Voltage: 5V / 9V / 12V / 15V / 20V Output Type: DC Voltage Selection: Fixed/selectable depending on module version Indicator: LED status indicators Application: DC power conversion and fast-charge voltage triggering 🔧 Applications Converting USB-C PD chargers into DC power supplies Powering DIY electronics projects Arduino and microcontroller projects LED applications Portable electronic equipment DIY laboratory power supplies DC motors and other suitable loads Router/modem power applications where the required voltage matches Powering electronics from USB-C PD power banks Replacing conventional DC adapters with USB-C PD sources 🛠️ How It Works The module does not boost the USB voltage itself. Instead, it communicates with a compatible USB-C power source and sends the required PD/QC/AFC negotiation request. For example, when connected to a compatible PD charger, the module can request: 5V → 9V → 12V → 15V → 20V The charger then provides the negotiated voltage at the module's DC output. ⚠️ Important Notes The connected USB-C charger or power bank must support the required fast-charging protocol and voltage. A standard 5V-only USB charger cannot normally provide 9V/12V/15V/20V through this module. Always verify the selected output voltage with a multimeter before connecting your device. Do not connect a device that requires a lower voltage than the selected output. The module is a trigger/decoy board, not a standalone DC-DC boost converter. Maximum available output power/current depends on the connected USB-C charger/power bank and the module's specifications. Do not short the output terminals. 20V output can damage 5V/9V/12V-only electronics if the wrong voltage is selected. Exact selectable voltages and current capability can vary between board versions. 📦 Package Includes 1 × Type-C PD/QC/AFC Fast Charge Decoy Trigger Module
XH-M401 DC-DC Step Down Buck Converter Power Supply Module XL4016E1
[Step Down Buck Converter] ⚡ XL4016 12A DC-DC Step-Down Buck Converter Module Adjustable Power Supply 12A High Current • Adjustable Output • Up to 96% Efficiency • Ideal for Battery Charging & Power Supply Applications The XL4016 DC-DC Step-Down Buck Converter Module is a high-performance switching voltage regulator designed to efficiently convert higher DC input voltages into a stable, adjustable lower output voltage. Based on the XL4016 PWM Buck Converter IC, this module supports input voltages from 8V to 36V DC and provides an adjustable output voltage from 1.25V to 32V, making it suitable for a wide range of power supply applications. Capable of delivering up to 12A output current with conversion efficiencies of up to 96%, the module features built-in thermal shutdown, current limiting, and short-circuit protection for safe and reliable operation. Its compact design and excellent voltage regulation make it ideal for powering electronic projects, battery charging systems, LED lighting, industrial equipment, communication devices, and laboratory power supplies. ⭐ Features Based on the XL4016 high-performance buck converter IC Wide input voltage range of 8V–36V DC Adjustable output voltage from 1.25V–32V DC Supports output current up to 12A High conversion efficiency up to 96% Built-in thermal shutdown protection Built-in over-current protection Built-in output short-circuit protection Excellent line and load regulation Compact PCB design Suitable for battery charging and DC power applications 📋 Technical Specifications Product Type: DC-DC Buck Converter Module Model: XL4016 (XH-M401 / HW-439 / HW-674) Converter Type: Step-Down (Buck) Input Voltage: 8V–36V DC Output Voltage: 1.25V–32V DC (Adjustable) Maximum Output Current: 12A Maximum Conversion Efficiency: Up to 96% Load Regulation: ±0.5% Voltage Regulation: ±0.5% Switching Frequency: 180kHz Protection Features: Over-Current Protection Thermal Shutdown Protection Output Short-Circuit Protection PCB Size: 60 × 40 mm Operating Principle: PWM Step-Down Regulation 🔧 Applications Suitable for: Adjustable DC Power Supplies Lithium Battery Charging Lead Acid Battery Charging Solar Power Systems LED Drivers LCD Monitors LCD Televisions Portable Instruments Telecommunication Equipment Networking Equipment Robotics Projects Arduino Projects ESP32 Projects Industrial Automation DIY Electronics 📦 Package Includes 1 × XL4016 12A DC-DC Step-Down Buck Converter Module ⚠️ Note This is a step-down (buck) converter; the input voltage must always be higher than the required output voltage. Adjust the output voltage before connecting sensitive electronic devices. Product may be supplied as XH-M401, HW-439, or HW-674, depending on stock availability. All variants offer equivalent functionality.
Micro USB 5V 1A Step-Up Boost Converter Power Bank Charging Module for 3.7V Lithium Battery
[Li-ion Rechargeable Battery Charger, Lithium Battery Protection Board] The Micro USB 5V 1A Step-Up Boost Converter Power Bank Charging Module is a versatile and reliable solution for building portable power banks and battery-powered electronic projects. Designed for use with a single 3.7V lithium-ion battery, the module integrates battery charging, protection circuitry, and a high-efficiency boost converter on a single compact PCB. In addition, the onboard boost converter efficiently converts the battery voltage to a regulated 5V USB output, making it suitable for charging smartphones, microcontroller projects, portable gadgets, and USB-powered devices. As a result, users can create compact and dependable portable power solutions with minimal external components. Because of its integrated protection functions, the module safeguards the battery against overcharging, over-discharging, and short circuits. Furthermore, LED status indicators provide clear visual feedback regarding charging and operating conditions. The compact design allows easy integration into custom battery packs, DIY power banks, portable electronics, and embedded systems. Moreover, the Micro USB charging interface ensures compatibility with widely available charging cables and adapters. 🔹 Key Features Micro USB charging interface Integrated lithium battery charging circuit Built-in 5V step-up boost converter Stable 5V USB output Supports single-cell 3.7V lithium-ion batteries Overcharge protection Over-discharge protection Short-circuit protection High conversion efficiency LED charging status indicators Compact and lightweight design 🔹 Technical Specifications Product Type: Power Bank Charging Module Charging Interface: Micro USB Input Voltage: 3.7V Lithium Battery Output Voltage: 5V USB Standard Maximum Output Current: 1A Supported Battery Type: Single Cell Lithium-Ion Battery (3.7V) Efficiency: Up to 92% Quiescent Current: Less than 100µA Charging Protection: Overcharge, Over-discharge, Short Circuit Protection Overcharge Protection Voltage: 4.2V Over-discharge Protection Voltage: 2.5V Charging Cut-off Current: 50mA Module Dimensions: Approx. 36mm × 17mm × 7mm PCB Thickness: 1.6mm Operating Temperature: -40°C to +85°C Status Indication: LED Charging Indicators 🔹 Applications This charging module is suitable for: DIY power banks Portable USB chargers Lithium battery projects Arduino power supplies ESP32 and IoT devices Portable electronics Rechargeable battery systems USB-powered gadgets 🔹 Package Includes 1 × Micro USB 5V 1A Step-Up Boost Converter Lithium Battery Charging and Protection Module
Type-C USB 5V 2A Step-Up Boost Converter with USB Charger
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] Build your own portable power solutions with the Type-C USB 5V 2A Step-Up Boost Converter Power Bank Module — a compact and efficient charging solution designed for DIY power banks and USB-powered devices. This versatile module supports battery charging and 5V boost output, allowing you to convert battery voltage into a stable 5V USB output for powering smartphones, microcontrollers, and other USB devices. Equipped with a Type-C input, high-efficiency boost circuit, and intelligent power management, this module ensures reliable performance, fast charging, and safe operation. It also supports simultaneous charging and discharging, making it perfect for uninterrupted power supply applications. Key Features 🔋 2-in-1 Charging + Boost ModuleCharge your lithium battery while simultaneously providing a stable 5V output. ⚡ Stable 5V 2A OutputDelivers consistent power for USB devices like smartphones, Arduino, ESP32, and more. 🔌 Type-C USB InputModern and widely compatible input for easy charging (5V–5.5V). 🔄 High Efficiency Boost Conversion (Up to 92.5%)Minimizes power loss and improves battery life. 🧠 Smart Power ManagementAutomatically controls charging cycles, output switching, and battery protection. 🔘 External Button Control Support Short press: Turn ON output & display Double press: Turn OFF output 🔧 DIY Friendly DesignIncludes USB-A solder pads for custom builds and integrations. Working Functions 🔹 Auto shutdown when load current < 50mA🔹 Auto stop charging when current drops to 100mA🔹 Auto recharge when battery voltage < 4.1V🔹 Pre-charge mode below 2.8V (180mA safe charging)🔹 Supports charging while discharging Specifications Specification Description Input Voltage 5V – 5.5V (Type-C USB) Charging Cut-off Voltage 4.2V / 4.35V ±0.5% Charging Current 2.4A ±5% Boost Output Voltage 5V – 5.15V Output Current Up to 2A Efficiency Up to 92.5% Output Ripple 100mV Quiescent Current 30µA Material Metal + Plastic Applications 🔋 DIY Power Banks📱 Mobile Charging Projects🔧 Arduino / ESP32 Power Supply🔌 USB Device Power Modules🚗 Portable Electronics🧪 Embedded Systems & Prototyping Package Includes 1 × Type-C USB 5V 2A Step-Up Boost Converter Power Bank Module
3.7V 4.2V Battery Type-C Charger Board DC-DC Step-Up Boost Module
[Lithium Battery Protection Board] The 3.7V 4.2V Battery Type-C Charger Board DC-DC Step-Up Boost Module is a compact power management module designed for single lithium batteries. It combines a charging circuit and a DC-DC step-up boost converter, allowing the battery to power devices that require higher voltage outputs. This module uses a USB Type-C interface, which provides convenient and reliable power input. As a result, it is compatible with many modern power adapters and USB chargers. In addition, the onboard boost circuit can increase the battery voltage and deliver stable output. Because of this feature, the module can power small electronics such as portable gadgets, DIY power banks, and IoT devices. The board also includes several protection functions. For example, it protects the battery from over-charging, over-discharging, short circuits, and overheating. Therefore, the battery can operate safely and maintain a longer service life. Thanks to its ultra-small and lightweight design, the module is easy to integrate into compact electronic devices and DIY electronics projects. 🔹 Key Features Supports lithium battery charging and discharging USB Type-C power input Integrated DC-DC step-up boost converter Adjustable boost output voltage Constant current and constant voltage charging Built-in over-temperature protection Charging status and fault indicator Ultra-compact and lightweight design 🔹 Technical Specifications Parameter Specification Chipset TP4056 Input Voltage 4.2V – 5.5V Output Voltage 4.2V – 24V Adjustable Maximum Power 5W Operating Temperature -40°C to 80°C Operating Humidity 5% – 95% RH Module Size 23.4 × 18 mm Weight ~5 g 🔹 Applications This module can be used in many portable electronics projects, such as: DIY power banks Portable electronics IoT devices Robotics projects Emergency backup power systems Battery-powered gadgets 🔹 Package Includes 1 × 3.7V 4.2V Battery Type-C Charger Board DC-DC Step-Up Boost Module
2S 20A 7.4V / 8.4V 18650 Lithium Battery Protection Board with Balance
[Li-ion Rechargeable Battery Charger, Lithium Battery Protection Board] The 2S 7.4V / 8.4V 20A Lithium Battery Protection Board with Balancing is a compact and reliable Battery Management System (BMS) designed for 2-cell (2S) 18650 lithium-ion battery packs. This board provides complete protection and automatic cell balancing to ensure safe charging, stable discharging, and long battery life. With a nominal output of 7.4V and a full charge voltage of 8.4V, this protection board supports continuous current up to 20A, making it suitable for medium-power applications such as DIY battery packs, portable power tools, robotics, LED systems, solar projects, and backup power supplies. The built-in balancing function equalizes the voltage between both cells during charging, preventing overcharging of individual cells and improving overall pack efficiency and lifespan. Multiple protection features including over-charge, over-discharge, over-current, and short-circuit protection ensure maximum safety during operation. Compact in size and easy to wire, this BMS is ideal for both DIY users and professional battery pack manufacturers. ⭐ KEY FEATURES ✔ Designed for 2S (2-cell) 18650 lithium battery packs✔ 20A continuous discharge current support✔ Built-in cell balancing function✔ Protection against over-charge, over-discharge, over-current & short circuit✔ Improves battery safety, performance & lifespan✔ Compact PCB – easy to integrate✔ Ideal for DIY & professional battery pack builds 🔧 TECHNICAL SPECIFICATIONS Battery Configuration: 2S (2 cells in series) Nominal Voltage: 7.4V Full Charge Voltage: 8.4V Maximum Continuous Current: 20A Battery Type: 3.7V Li-ion (18650 rechargeable cells) Balancing Function: Yes (automatic during charging) Protection Functions: Over-charge protection Over-discharge protection Over-current protection Short-circuit protection 🔌 WIRING GUIDE – How to Connect 2S Battery Pack 🔹 Board Terminals (Typical Marking) B- → Battery negative (Cell 1 −) B1 → Between Cell 1 & Cell 2 B+ → Battery positive (Cell 2 +) 🔹 Output / Charger Terminals P- → Load / Charger negative P+ → Load / Charger positive (same as B+) 🔧 Connection Steps Connect Cell 1 negative → B- Connect Cell 1 positive / Cell 2 negative → B1 Connect Cell 2 positive → B+ Connect Load & Charger + → P+ (or B+) Connect Load & Charger − → P- ⚠️ Use only matched 18650 cells and an 8.4V Li-ion charger. 🎯 APPLICATIONS DIY lithium battery packs Power tools & cordless devices Robotics & automation projects LED lighting systems Solar battery packs Backup power & portable energy systems 📦 PACKAGE INCLUDES 1 × 2S 20A Lithium Battery Protection Board with Balancing
Type-C 3S 4A 18650 Lithium Battery Charger Module | USB-C Step-Up Boost Charging Board for Li-ion
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] The 3S Type-C Charging Module Battery Charger Board is a compact and highly efficient solution for charging 18650 lithium-ion and Li-Po polymer battery packs. Designed specifically for 3S battery configurations (12.6V charging voltage), this module integrates a USB Type-C input and a high-frequency step-up (boost) circuit, making it ideal for modern portable power applications. With multiple current variants available (1A / 2A / 4A), the module offers flexibility for different power requirements. Its high switching frequency up to 1MHz ensures fast response, stable performance, and compact PCB size. The intelligent quasi-CV (constant voltage) mode compensates for voltage loss caused by internal battery resistance and PCB trace resistance, ensuring accurate and efficient charging. This charging board also features automatic recharge capability, restarting charging when battery voltage drops, and excellent adaptability to power sources with limited driving capability. Built-in protection functions safeguard the battery and connected devices from over-voltage, under-voltage, and short-circuit conditions, enhancing safety and battery lifespan. Thanks to its wide compatibility and reliable performance, this module is suitable for a broad range of applications including DIY power banks, portable electronics, solar charging systems, audio equipment, POS machines, electric fans, Bluetooth devices, and other Type-C powered equipment. ⭐ Key Features ✔ USB Type-C Input for convenient and modern charging ✔ Supports 3S Lithium Battery Packs (12.6V charging voltage) ✔ Multiple Charging Current Options: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) ✔ High Switching Frequency up to 1MHz for stable and efficient operation ✔ Quasi-CV Charging Mode compensates voltage loss ✔ Automatic Recharge Function ✔ Built-in Protection: Over-voltage, low-voltage, short-circuit ✔ Compact design, easy integration into DIY projects 🔧 Technical Specifications Battery Configuration: 3S lithium battery Supported Batteries: 18650 Li-ion / Li-Po polymer Input Voltage: DC 3–6V (Recommended: 3.7V / 5V) Input Current: Up to 4A (4A version) Charging Voltage: 12.6V Charging Current: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) Switching Frequency: Up to 1MHz Protection Functions: Over-voltage, under-voltage, short-circuit 🎯 Applications DIY power banks 18650 lithium battery packs Mobile phones & portable devices Bluetooth speakers & audio equipment Solar charging systems POS machines Cameras, MP3/MP4 players Game consoles & notebooks Type-C powered electronics 📦 Package Includes 1 × 3S Type-C Charging Module Battery Charging Board 4A Version Please note: Image Only for representation purposes. Actual products may vary as per available stock.
QC3.0 PD 2.0 Power Bank Dual Type-C Port Two-way Fast Charging Mobile Power Bank Module
[Lithium Battery Protection Board] 📝 Description Upgrade your portable power solutions with this advanced QC3.0 PD 2.0/3.0 Fast Charging Power Bank Module, engineered for high-performance mobile power systems and professional DIY applications. The motherboard features 5 default USB interfaces — Type-C, Lightning, Micro-USB, Type-A1, and Type-A2, along with a dedicated DC input port (charge-only, no discharge) supporting 5V–12V input. This multi-interface design ensures maximum compatibility with smartphones, tablets, laptops, and other USB-powered devices. 🔌 Port & Charging Capabilities Type-C Port supports bi-directional fast charging, allowing both input and output operation. Input protocols: AFC / FCP / SCP / VOOC / PD2.0 / PD3.0 Output protocols: PPS / PD2.0 / PD3.0 / AFC / FCP / QC2.0 / QC3.0 / QC3+ / SCP Lightning Port supports PD2.0 fast-charging input Micro-USB Port supports AFC / FCP / SCP fast-charging input Type-A1 & Type-A2 Ports support Apple / AFC / FCP / VOOC / QC2.0 / QC3.0 / QC3+ / SCP fast-charging output DC Port supports 5–12V input only (charging function, no output) ⚡ Fast-Charging Performance Input Voltage Support: 5V / 9V / 12V / 15V / 20V PPS Output: 3.3V–21V / 3A PD2.0 / PD3.0 Output: 5V ⎓ 3A 9V ⎓ 3A 12V ⎓ 3A 15V ⎓ 3A 20V ⎓ 5A QC2.0 Output: 5V ⎓ 3A / 9V ⎓ 3A / 12V ⎓ 3A QC3.0 Output: 5V–12V (200mV step adjustment) AFC Output: 5V ⎓ 3A / 9V ⎓ 2A / 12V ⎓ 2A FCP Output: 5V ⎓ 3A / 9V ⎓ 2A / 12V ⎓ 1.5A SCP Output: 5V ⎓ 4.5A / 10V ⎓ 2.2A VOOC Output: 5V ⎓ 4A 🔋 Battery & Power Options Powered by 18650 or Li-polymer battery packs, the module is available in three high-power variants: 3S – 65W (GXJA0707-001) 4S – 100W (GXJA0707-002) 5S – 100W (GXJA0707-003) The built-in digital display provides real-time monitoring of voltage, current, and power status, enabling precise control and safe operation. Compact, efficient, and feature-rich, this power bank module is ideal for DIY high-capacity power banks, portable charging stations, laptop backup batteries, and custom lithium battery systems up to 25,000mAh. ⭐ Key Features ✔ Multi-Port Design: Type-C, Lightning, Micro-USB, 2× USB-A, DC input✔ Bi-Directional Type-C Fast Charging (Input & Output)✔ Supports PPS, PD2.0/3.0, QC2.0/3.0, QC3+, AFC, FCP, VOOC, SCP✔ High Power Output: 65W (3S) / 100W (4S & 5S)✔ Digital Display for Real-Time Monitoring✔ Compatible with 18650 & Li-polymer Battery Packs✔ Compact & Portable PCB Design✔ Ideal for DIY Power Banks & Professional Builds 📦 Package Includes 1 × QC3.0 PD 2.0/3.0 Power Bank Fast Charging Module(Select Variant: 3S 65W / 4S 100W / 5S 100W) 1 × Integrated Digital Display (On-Board)
PD65W Fast Charging Adapter Power Banks Module USB-C PD 65W
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] 📝 Description Upgrade your power projects with this PD65W Fast Charging Adapter Module, engineered to deliver USB-C Power Delivery up to 65W.This module provides stable, intelligent, and ultra-fast charging for smartphones, laptops, tablets, and Type-C gadgets. Featuring a PD standard protocol board, it supports multiple voltage profiles such as 5V, 9V, 12V, 15V, and 20V, making it ideal for DIY fast chargers, custom power banks, repair work, or integrating PD into your electronic builds. Built with premium components, over-voltage, over-current, temperature protection, and high-efficiency power conversion, this module delivers reliable, safe performance for all your USB-C PD applications. Perfect for makers, technicians, hobbyists, and product developers. ⭐ Key Features ✔ 65W USB-C Power Delivery — Supports ultra-fast charging for smartphones, tablets, laptops, and Type-C devices ✔ Multi-Voltage PD Profiles — Automatically negotiates 5V / 9V / 12V / 15V / 20V depending on connected device ✔ High-Efficiency Power Conversion — Stable output with low heat generation and fast response ✔ Built-In Safety Protections — Over-voltage, over-current, short-circuit and thermal protection ensure reliable operation ✔ Compact Size for Easy Integration — Fits perfectly in DIY chargers, power banks, docking stations, and custom electronics ✔ Plug-and-Play Operation — Simple wiring and automatic PD negotiation ✔ Ideal for Makers & Technicians — Great for DIY projects, repairs, and upgrading existing charging systems 🔧 Technical Specifications Input Voltage: Operates from 8V to 32V, compatible with various power sources. Output Power: Up to 65W (via USB-C) Supported PD Voltages: 5V/9V/12V/15V/20V Protocol: USB Power Delivery (PD) Efficiency: High (depends on input/output profile) Protection Features: Over-voltage protection/Over-current protection/Short-circuit protection/Thermal protection Application: DIY chargers, fast-charging adapters, power banks, docking stations, electronics projects 📦 Package Includes 1 × PD65W Fast Charging Adapter Module Standard Board
Type-C MT3608 Adjustable Dc to Dc Converter 2-24V to 5V-28V 2A
[Step UP Buck Converter] DC-DC Adjustable Boost Power Supply Module 2V–24V to 5V/9V/12V/28V 2A Type-C The DC-DC Adjustable Boost Power Supply Module is a compact step-up power conversion module designed to increase a lower DC input voltage to a higher adjustable output voltage. It supports a wide 2V–24V input range and provides an adjustable output from approximately 5V to 28V, making it suitable for battery-powered devices, microcontrollers, sensors, portable electronics and DIY power projects. With a compact 30 × 17 × 8mm design and Type-C connector, this module is convenient for projects where space and flexible power input are important. ⭐ Key Features DC-DC boost/step-up converter Wide 2V–24V input voltage range Adjustable output voltage Output options include approximately 5V, 9V, 12V and 28V Maximum output current: 2A Conversion efficiency: >93% Compact and lightweight design Type-C input connector Suitable for battery-powered applications Easy to integrate into DIY electronics projects 📋 Technical Specifications Product Type: DC-DC Boost Converter Module Input Voltage: 2V–24V DC Output Voltage: 5V–28V adjustable Maximum Output Current: 2A Peak Output Current: Up to 2A Efficiency: >93% Input Connector: USB Type-C Product Size: 30 × 17 × 8mm Weight: Approximately 4g Condition: New 🔧 Applications Arduino and microcontroller projects Raspberry Pi and electronic development projects Battery-powered devices Portable power systems GPS and sensor projects LED applications Robotics projects Motors and actuators DIY power supplies Low-voltage to higher-voltage power conversion Portable electronic equipment 🛠️ How It Works This module uses a DC-DC boost conversion circuit to increase the input DC voltage. For example: 3.7V battery → 5V output 5V input → 9V output 5V/12V input → higher adjustable output The required output voltage can be adjusted according to the application. ⚠️ Important Notes This is a boost/step-up module; the output voltage cannot be lower than the applicable input voltage range. Do not exceed the specified 24V maximum input voltage. Do not exceed the 2A maximum output current. Actual maximum output power depends on input voltage, output voltage, cooling and module operating conditions. At higher output power, adequate ventilation/cooling may be required. Always verify the output voltage with a multimeter before connecting sensitive electronics. Do not short-circuit the output. The module does not automatically regulate to 5V/9V/12V/28V; the output must be set to the required voltage. 📦 Package Includes 1 × DC-DC Adjustable Boost Module 2V–24V to 5V/9V/12V/28V, 2A, Type-C
Type-C USB 5V 1A Step-Up Booster – Lithium Battery Charging and Protection Module for Power Bank
[Lithium Battery Protection Board] Overview of this type-c usb 5V 1A power bank charging module board Introducing the Type-C USB 5V 1A Step-Up Boost Converter Power Bank Charging module board at best price in India. A versatile and important component for modern electronic project. This type c power bank charger offers efficient and reliable charging & ensure your device stay powered up. Designed for optimal performance, the Type-C USB 5V 1A power bank charging module is perfect for DIY enthusiasts and professionals alike. Experience seamless integration and enhanced functionality with this advanced charging solution. The Type-C charging module boasts an impressive step-up converter that efficiently boosts voltage. With a 5V 1A output, it guarantees stable power delivery for various devices. This Type-C USB 5V 1A Step-Up Converter charging module is engineered for safety and reliability. Integrated charging protection safeguards your devices from overcharging and short circuits, providing peace of mind. Compact and user-friendly, the type c power bank charger is easy to incorporate into any project. Its Type-C interface ensures broad compatibility with contemporary devices. Whether you’re working on portable power banks or custom electronics, this charging module is indispensable. Enhance your projects with the robust and dependable Type-C USB 5V 1A power bank charging module. Features Input and Output Specifications: The module accepts input from a USB Type-C port at 5V. It outputs 1A current suitable for charging devices efficiently. Step-Up Boost Converter: The device converts a lower voltage to a higher one, ensuring stable power supply. This feature allows for charging even when the input voltage is below the required level. Integrated Charging Protection: The module includes built-in protection to prevent overcharging and overheating. This ensures the safety and longevity of both the power bank and connected devices. Compact and Portable Design: Its small size makes it highly portable and easy to integrate into DIY projects. The compact form factor allows for convenient carrying and use on the go. LED Indicator Lights: The module features LED lights indicating charging status and power levels. This visual feedback helps users monitor the charging process effortlessly. Specification Specification Details Input Voltage 3.7V Output Voltage 5V USB Standard Output Current 1A (Maximum) Charging Interface Type-C USB Charging Protection Overcharge, Over-discharge, Short Circuit Efficiency Up to 92% Quiescent Current Less than 100uA Battery Type Supported Single Cell Lithium-Ion Battery (3.7V) Module Size 36mm x 17mm x 7mm (Approx.) Working Temperature Range -40°C to +85°C Indicator Lights LED Indicators for Charging Status PCB Thickness 1.6mm Overcharge Protection Voltage 4.2V Over-discharge Protection Voltage 2.5V Short Circuit Protection Yes Charging Cut-off Current 50mA Package Includes: 1 x Type-C USB 5V 1A Step-Up Booster – Lithium Battery Charging and Protection Module
XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module
XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module is a two-channel PWM signal generator. It has dedicated switches for adjusting the frequency and duty cycle separately. Using this module PWM output, frequency and duty cycle can be set as per requirements. Communication Standard: 9600 bps Data bits: 8 Stop bit: 1 Check digit: none Flow control: none Set the frequency of the PWM “F101”: Set the frequency to 101 Hz (001 to 999) “F1.05”: set the frequency of 1.05 kHz (1.00 ~ 9.99) “F10.5”: Set the frequency to 10.5kHz (10.0 ~ 99.9) “F1.0.5”: set the frequency of 105kHz (1.0.0 ~ 1.5.0) Set the PWM duty cycle “DXXX”: set the PWM duty cycle to XXX; (001 ~ 100) Such as D050, set the PWM duty cycle is 50% Read the set parameters Send a “read” string to read the set parameters. Set successfully return: DOWN; Setup failed to return: FALL. Application: This is used to drive a stepper motor driver’s square wave. Generate an adjustable pulse for MCU. Generate an adjustable pulse for controlling relative circuit (PWM adjust lightspeed, etc). Used as a square wave signal generator for experimental development and use. Parameter Settings: The module has 4 switches, two for frequency adjustment and two for duty cycle adjustment. This module can generate frequencies between 1Hz and 150kHz, with automatic switching for different ranges. Frequency is divided into four ranges, automatic switching: 1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; 2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; 3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz 4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz 5. e.g. frequency display: 100 indicates PWM output 100Hz pulse; 1.01 indicates PWM output 1.01K pulse; 54.1 indicates that the PWM output has a pulse of 54.1 kHz; 1.2.4 indicates that the PWM output is 124 kHz pulse; Duty cycle range: 1 – 100%. In case of a power outage or if the module is powered down, the parameters that are set are saved automatically, so there is no need to set the parameters again. Single touch for increasing or decreasing single unit and long press for fast increasing or decreasing. Features: LCD display for frequency and duty cycle. Wide frequency range. High precision. Serial communication(TTL based). Package Includes: 1 x XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module.
400W DC-DC Step-up Boost Converter Constant Current Power Supply Module LED Driver Step Up Module
[Step UP Buck Converter] This is a great 400W DC to DC step-up power supply module for electric equipment, digital products, laptop, etc. Input and output are designed with screw terminals for convenient wire connection and disconnection. High efficiency, the maximum conversion efficiency can be 96% and efficiency is related to input/output voltage, current and voltage difference. There are 2 heat sinks that would ensure a better heat dissipation. It can also be used as a driver for high power LED lights or voltage regulator for solar panels. Features: Input and output are designed with screw terminals for convenient wire connection and disconnection. High efficiency, the maximum conversion efficiency can be 96% and efficiency is related to input/output voltage, current and voltage difference. There are 2 heat sinks that would ensure a better heat dissipation. It can also be used as a driver for high power LED lights or voltage regulator for solar panels. Output Voltage/Current Adjustment: Adjust "CV-ADJ" potentiometer clockwise to reduce voltage, counterclockwise to increase voltage. Adjust "CC-ADJ" potentiometer counterclockwise about 30 circles to minimize the output current before connecting to load(clockwise to increase current, counterclockwise to reduce current). Then adjust "CC-ADJ" clockwise to the current value you need. If you use the module for battery charging, connect to output after battery is fully discharged. Because if the more energy is left in battery, the less charging current will be. Specification: Input Voltage: DC 8.5V to 50V Output Voltage: DC 10V to 60V Max. Input Current: 15A Max. Output Current: 12A Quiescent Current: 10mA Constant Current Range: 0.2A to 12A Operating Temperature: -40° to 85° Package Included: 1 x Boost Module 400W DC-DC Step-up Boost Converter Constant Current Power Supply Module 15A Step-Up LED Driver
4S 20A 18650 Lithium Battery Protection Board
[Lithium Battery Protection Board] The HXYP-4S-BM20 4S 20A Lithium Battery Protection Board (BMS) is a compact and reliable battery management system designed specifically for 3.7V lithium-ion 18650 rechargeable cells. This board provides complete protection and safe operation for building 4-cell (4S) battery packs with a nominal output voltage of up to 14.8V and a full charge voltage of 16.8V. Featuring a square, lightweight, and portable design, this protection board is easy to integrate into custom battery packs and compact enclosures. It allows you to connect four 18650 lithium cells simultaneously and ensures balanced and safe charging and discharging. The board includes multiple built-in safety protections such as over-charge protection, over-discharge protection, over-current protection, and short-circuit protection, helping to extend battery life and prevent damage or hazardous conditions. This module is ideal for use in DIY battery packs, power tools, solar storage systems, electric scooters, backup power supplies, robotics, and other lithium battery applications. ⭐ Key Features ✔ Designed for 4S (4-cell) 18650 lithium-ion battery packs ✔ Supports continuous current up to 15A ✔ Built-in protection for over-charge, over-discharge, over-current & short circuit ✔ Compact square PCB design – easy to install ✔ Low power consumption with ultra-low quiescent current ✔ Increases battery safety, reliability, and lifespan 🔧 Technical Specifications Model: HXYP-4S-BM20 Battery Type: 3.7V Li-ion (18650 rechargeable cells) Configuration: 4S (4 cells in series) Charging Voltage: 16.8V Maximum Continuous Current: 15A Maximum Peak Current: 20A Over-Charge Voltage: 4.25 ± 0.05V per cell Over-Discharge Voltage: 2.5 ± 0.05V per cell Quiescent Current: < 30 µA Board Size: 3.6 × 3.6 cm Country of Origin: China 🎯 Applications DIY lithium battery packs Power tools & backup batteries Solar energy storage systems Electric scooters & e-bikes Robotics & embedded systems UPS & portable power stations 🔹 Battery Connection Terminals on Board Usually marked as: B- → Battery Pack Negative (Cell 1 –) B1 → Connection between Cell 1 & Cell 2 B2 → Connection between Cell 2 & Cell 3 B3 → Connection between Cell 3 & Cell 4 B+ → Battery Pack Positive (Cell 4 +) 🔹 Output / Charge Terminals P- → Load / Charger Negative P+ → Load / Charger Positive (same as B+) 🔧 Step-by-Step Wiring Connect 4 cells in series: Cell order:Cell1 → Cell2 → Cell3 → Cell4 Then wire as: Cell1 negative → B- Cell1 positive / Cell2 negative → B1 Cell2 positive / Cell3 negative → B2 Cell3 positive / Cell4 negative → B3 Cell4 positive → B+ For charging & discharging: Charger / Load positive → P+ (or B+) Charger / Load negative → P- ⚠️ Safety Tips Always connect balance wires before main power wires Use proper insulated wires and nickel strips Do not short any terminals Use a 16.8V Li-ion charger for 4S packs Ensure BMS current rating matches your load 📦 Package Includes 1 × -4S-BM20 4S 20A Lithium Battery Protection Board (BMS) * Product Images are shown for illustrative purposes only and may differ from actual product.
DC 3.6V-6V To 400KV Boost Step Up Power Module High Voltage Generator
[Step UP Buck Converter] Description Overview of this 3.6V-6V To 400KV step up high voltage generator Introducing the DC 3.6V-6V To 400KV Boost Step Up Power Module, a high voltage generator designed for various applications. This module operates efficiently, converting input voltages between 3.6V and 6V into an impressive 400KV output. Its step-up capability makes it an ideal choice for applications requiring high voltage, offering reliability and performance. Equipped with advanced technology, this boost converter ensures stable and consistent high voltage generation. Its compact design allows for versatile use in projects where space is a consideration. The 3.6V-6V To 400KV high voltage generator module is a trusted solution higher voltage. It is also use by enthusiasts, hobbyists, and professionals seeking a compact and efficient way to generate high voltages for experiment and electronic projects. Feature Input Voltage Range: The module operates easily within the input voltage range of 3.6V to 6V. And it also provide flexibility for a variety of power sources. High Voltage Output: With an impressive output voltage of 400KV. This module is also designed to deliver a trusted high voltage power supply for your projects. Efficient Boost Conversion Technology: Employing advanced step-up conversion technology. This module ensures efficiency to boost the input voltage to the desired 400KV output. Compact Design: The module feature a compact and space saving design. And also make it perfect for use in various electronic projects and experiments where space efficiency is crucial. Versatile Applications: Whether you’re engage in experiment setups, electronic project, or applications that demand a robust high voltage generator. This module proves to be a versatile and dependable solution. Specification Specification Details Input Voltage Range 3.6V – 6V Output Voltage 400KV Conversion Type Boost (Step Up) Efficiency Upto 93% Compact Design Yes, space-efficient for various applications Technology Advanced step-up conversion technology Applications Versatile, suitable for diverse high-voltage needs Weight 150gm Built-in Protections Overcurrent protection and input reverse polarity protection Main application of this 3.6V-6V To 400KV step up high voltage generator Educational Projects: This 3.6V-6V To 400KV high voltage generator module is perfect for education purposes. And also offers a hands on approach for students to delve into the fascinating world of physics and electronics. Whether used in classrooms or home based experiments. It also provides a safe and effective means to understand the principles of voltage conversion and boost circuit. High Voltage Experiments: For electric students who are passionate about exploring the realms of high-voltage electronics. It allows users to conduct a wide array of experiments and projects that need an elevated voltage levels. And also enable a deeper exploration of electronic phenomena and electric behavior. Electronic Prototyping: In the realm of electronic prototyping, where the translation of conceptual designs into tangible electronic circuits takes place. This power module serves as a key component. Its ability to deliver higher voltage levels becomes crucial for testing and refining prototypes. And also ensure that electronic devices meet their voltage requirements effectively. Scientific Research: 3.6V-6V To 400KV high voltage generator is also use as a trusted asset in their experiments. The capacity to generate high voltage is often important for various scientific studies. Electronic Art Installations: For artists working on electronic art installations that demand unique lighting effects or interactive elements with heightened voltage. this power module also use as a creative medium. Package Includes: 1 x 400KV Step Up Power Module
DC 3V-6V to 1000KV 1000000V Boost Step-up Power Module
[Step UP Buck Converter] Description Overview of this DC 3V-6V to 1000KV step up high voltage generator The DC 3.6V-6V To 1000KV Boost Step Up Power Module is a cutting edge high voltage generator designed for diverse applications. With a focus on safety and efficiency. This module easily transforms low input voltages of 3.6V to 6V into a powerful output up to 1000KV. Ideal for high-voltage experiments, education purposes, and prototype. It also provides a versatile solution for various electronic projects. Featuring advanced step-up DC conversion technology, this module ensures stable and reliable performance. Its compact design also make it perfect for use in a wide range of projects. The input range of 3V-6V offers flexibility, and the adjustable output allows users to fine-tune the voltage as needed. With a focus on user safety, the module includes built-in protective featur to prevent overloading and ensure efficient operation. This makes it an excellent choice for experimentation. And also enable users to observe and understand high-voltage principles while maintaining a reliable and secure environment. Elevate your projects with this versatile high-voltage generator, perfect for education institute, research lab. Features High Voltage Output for Varied Applications: The DC 3V-6V to 1000KV high voltage generator also contain a remarkable high voltage output. This capability opens the door to a wide range of experimental setups, scientific projects, and practical applications where such high voltage are important. Versatile Compatibility with Input Range: Operating easily within the input voltage range of 3.6V to 6V. This module offers versatility and compatibility with different power sources. This adaptability ensures its applicability across a diverse array of electronic projects. Compact and Space-Efficient Design: With dimensions 50mm x 30mm x 25mm, the module compact design provide easy integration into various electronic setups. Its space efficient form factor is ideal for projects with size constraints. Precision with Adjustable Output: The module provides users with the flexibility to fine-tune the output voltage according to specific project needs. This adjustability ensure precision in voltage control, catering to the needs of different applications. Enhanced Safety through Built-in Protection: This module prioritizes it by incorporating built in protection mechanism. These feature prevent over loading and ensure a secure and reliable high voltage generation experience. Specifications: Specification Value Input Voltage (V) 3.3V~5V DC Maximum Operating Current (A) 2 – 5 Max. Output Voltage 1000 KV Max. Output Current (A) 0.5 A Discharge Time 10s Color Black Length (mm) 8.8 Width (mm) 2.67 Height (mm) 2.3 Weight (gm) 45 Efficiency Up to 93% Main application of this DC 3V-6V to 1000KV step up high voltage generator High-Voltage Experiments and Demonstrations: This versatile DC 3V-6V to 1000KV Boost Step up Power Module is perfect for safely conduct a wide range of high voltage experiment. This module also use an important tool for showcase the principle of high voltage in a controlled environment. Education tools: Elevate your physics and electronics education with the inclusion of this module in class room activities. The adjustable high voltage output allows students to explore various aspects of electricity. And foster a hands on learning experience that enhance knowledge. Powering Electronic Projects: Integrate this module into your electronic projects that demand a reliable and adjustable high voltage power source. Its compact design and efficiency make it perfect to power various electronic applications where precise control over voltage is crucial for optimal project performance. Captivating Static Electricity: Capture the attention of audiences with captivating static electricity demonstrations. This module provides the necessary power to create visually striking and education displays. Research and Development in Electric Engineering: For professionals in electric engineering and researcher. This module also use a valuable asset in research and development. Its efficiency and versatility make it an ideal tool for testing projects in the field of electric engineering. Package Includes: 1 x 1000KV Step Up Power Module
Stepper Motor(28YBJ-48) with SMD ULN2003 Driver Board
[Servo Motor] The 28BYJ-48 Stepper Motor with ULN2003 Driver Board is a compact, reliable, and low-cost 5V geared stepper motor kit designed for Arduino, robotics, automation, and embedded control applications. This motor features a 4-phase, 5-wire configuration with an integrated reduction gearbox, delivering high torque and precise positioning at low speeds. One of the biggest advantages of a stepper motor is its ability to operate accurately in an open-loop control system, eliminating the need for expensive feedback sensors or encoders. The motor position is precisely controlled by simply counting the input step pulses. The included ULN2003 driver board acts as a signal amplifier, allowing low-power control signals from microcontrollers such as Arduino, Raspberry Pi, ESP32, and 8051 to safely drive the stepper motor. The driver board also features four LED indicators (A, B, C, D) that display the working status of each phase in real time, making testing and debugging easy. With its compact size, plug-and-play connector, stable operation, and high reliability, this stepper motor kit is ideal for robot arms, CNC projects, camera sliders, 3D mechanisms, automation systems, and educational electronics projects. ⭐ KEY FEATURES ✔ 28BYJ-48 Mini Geared Stepper Motor – 5V DC✔ 4-Phase, 5-Wire Configuration✔ Includes ULN2003 Stepper Motor Driver Board✔ Open-Loop Precise Control – No encoder required✔ Built-in Gear Reduction for Higher Torque✔ Plug-and-Play Interface – Easy connection✔ Phase LED Indicators on driver board✔ Compact size, lightweight & reliable✔ Perfect for Arduino, robotics & automation projects 🔧 TECHNICAL SPECIFICATIONS Stepper Motor Model: 28BYJ-48 Supply Voltage: 5V DC (commonly used version) Number of Phases: 4 Wires: 5 Stride Angle: 5.625° × 1/64 (with gearbox) Gear Reduction Ratio: 1:64 (approx.) Dimensions: 44 × 44 × 28 mm (L × B × H) Type: Geared Stepper Motor Driver Board Driver Model: ULN2003 Input Interface: Standard 5-pin connector Indicators: 4 Phase LED status indicators Function: Signal amplification & motor driving 🎯 APPLICATIONS Arduino & microcontroller projects Robotics & automation systems Camera sliders & pan-tilt systems CNC & 3D motion mechanisms Educational electronics kits Smart home & IoT projects 📦 PACKAGE INCLUDES 1 × 28BYJ-48 5V Stepper Motor 1 × ULN2003 Stepper Motor Driver Board
Type C BMS 3S 2A 18650 Lithium Battery Charger Board USB C Step-up Boost Module for Li-Po Polymer Power Bank
[Step UP Buck Converter] Description The 3S Charging Module Battery Charging Board is a compact and versatile solution for efficiently charging 18650 lithium-ion batteries. Designed with a USB Type-C input for convenient power connection, this module supports 3S configurations, making it suitable for a range of applications. Feature : Charging current : 0.37A(1A Version);0.74A(2A Version);1.48A(4A Version) Input voltage : DC 3-6V(Recommend DC 3.7V 5V) Input current : 2A(2A Version); Charging voltage : 12.6V Charging current : 0.74A(2A Version); Switching frequency up to 1MHz Quasi-CV mode to compensate for the voltage loss on the battery’s internal Resistance and trace resistance automatic recharge Good adaptability to input supply with limited driving capability With battery overvoltage protection, low voltage protection, and short circuit protection Great for PDA, MP3, MP4, cameras, Bluetooth applications, games consoles, notebooks, 18650 lipo lithium battery, phones, solar charging, audio equipment, POS, electric fan, Type-C charging equipment, etc. Package Include: 1 x Charging Module Battery Charging Board Type-C Step-Up Boost Module 18650 Lithium Battery Charger Module( 3S 2A)