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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
IR Obstacle Avoider Sensor
IR sensor with adjustable detection range and angle.
Out of stockAC/DC Clamp Meter 600A
Non-contact clamp meter, 600A AC/DC, NCV detection, frequency, capacitance.
10-in-1 USB & Type-C Digital Tester – IPS Voltmeter, Ammeter, Impedance & Capacity Meter
[Ammeter and Voltmeter] The 10-in-1 USB & Type-C Digital Power Tester is a multifunction USB measurement instrument developed for engineers, technicians, hobbyists, and electronics enthusiasts. It accurately monitors USB charging performance while providing comprehensive electrical measurements for USB-A and USB Type-C devices. Equipped with a bright IPS true-color LCD display, the tester simultaneously displays ten important charging parameters including Voltage, Current, Power, Capacity (mAh), Energy (mWh), Cable Resistance, Temperature, Charging Time, D+ Voltage, and D− Voltage. The tester features both USB-A and USB Type-C input/output interfaces, allowing compatibility with traditional USB chargers as well as modern USB-C Power Delivery devices. It supports testing of fast chargers, mobile phones, tablets, laptops, power banks, USB cables, and various USB-powered electronics. With support for measurements up to 150W and 5A, this tester is suitable for high-power USB-C PD chargers while consuming less than 20mA of operating current. Built-in control buttons allow users to switch display modes, perform fast-charge diagnostics, and manage measurement functions easily. Its compact design makes it an excellent tool for electronics repair, charger verification, cable testing, battery capacity measurement, laboratory work, and DIY electronics projects. 🔹 Key Features Dual Interface: USB-A & USB Type-C Input/Output Supports USB PD and Fast Charging IPS Full Color LCD Display Measures Voltage, Current and Power Capacity (mAh) & Energy (mWh) Measurement Cable Resistance (Impedance) Measurement Internal Temperature Monitoring USB D+ / D− Voltage Detection Charging Timer Function High Accuracy Measurement Low Self Power Consumption Compact Portable Design Easy Operation with Dedicated Function Buttons 🔹 Technical Specifications Product Type: USB Digital Power Tester Display: IPS True Color LCD Input Interface: USB-A / USB Type-C Output Interface: USB-A / USB Type-C Maximum Power Measurement: 150W Maximum Current: 5A Voltage Measurement: USB Standard & USB-C PD Power Measurement Range: 0–150W Current Measurement: Up to 5A Capacity Measurement: mAh Energy Measurement: mWh Impedance Measurement Range: 1–999.9Ω Temperature Measurement: 0°C to 80°C USB D+ Voltage Range: 0–2.99V USB D− Voltage Range: 0–2.99V Timer Range: 999 Hours 59 Minutes Refresh Rate: Approximately 500ms Self Power Consumption: <20mA Operating Buttons: Mode / Power Dimensions: 76.9 × 38 × 11 mm 🔹 Applications This USB tester is suitable for: USB charger testing USB-C PD charger testing Power bank capacity testing Mobile charger verification Fast charging protocol diagnostics USB cable resistance testing Laptop USB-C charger testing Electronics repair DIY electronics projects Laboratory measurements Battery charging analysis Quality inspection of USB power supplies 🔹 Package Includes 1 × 10-in-1 USB & Type-C Digital Power Tester 🔹 Frequently Asked Questions (FAQ) What does "10-in-1" mean? It measures ten important parameters: Voltage, Current, Power, Capacity, Energy, Impedance, Temperature, Charging Time, D+ Voltage, and D− Voltage. Does it support both USB-A and USB Type-C? Yes. It features both USB-A and USB Type-C input and output interfaces. What is the maximum power it can measure? Up to 150W. What is the maximum current supported? Up to 5A. Can it test USB-C laptop chargers? Yes. It supports high-power USB-C PD chargers up to 150W. Can it measure charging cable quality? Yes. It measures cable impedance from 1Ω to 999.9Ω. Does it display temperature? Yes. It includes an internal temperature sensor with a range of 0°C to 80°C. Does it require batteries? No. It is powered directly from the connected USB source. Can it measure power bank capacity? Yes. It records charging capacity in mAh and mWh. Does it support fast charging protocols? Yes. It can monitor USB D+ and D− voltages, helping identify fast charging protocol handshakes.
3.7V BMS 1S 2A 18650 Lithium Battery Protection Board
[Lithium Battery Protection Board] The 1S 3.7V Lithium Battery Protection Board (BMS/PCM) is a compact battery management module designed specifically for single-cell lithium-ion batteries such as 18650, 14500, and similar 3.7V rechargeable cells. It continuously monitors battery voltage and current to ensure safe charging and discharging operations. In addition, the module provides multiple layers of protection including overcharge, over-discharge, overcurrent, and short-circuit protection. As a result, it helps extend battery life and improves the safety of battery-powered devices. Because of its compact size, the protection board can be easily integrated into DIY battery packs, portable electronics, LED lighting systems, and rechargeable battery projects. Furthermore, the board uses nickel-strip compatible terminals for easy battery pack assembly. The protection circuit is designed for long-term reliable operation and helps prevent damage caused by improper charging or excessive current draw. Moreover, it offers high voltage detection accuracy for improved battery management performance. ⚠️ Note: This protection board is designed for 3.7V Lithium-Ion batteries only and is not suitable for LiFePO4 batteries. 🔹 Key Features Single-cell (1S) lithium battery protection board Suitable for 18650 lithium-ion batteries Overcharge protection Over-discharge protection Overcurrent protection Short-circuit protection High voltage detection accuracy Compact and lightweight design Easy installation and integration Long operational life 🔹 Pin Configuration B+ : Battery Positive Terminal B- : Battery Negative Terminal P+ : Charge / Discharge Positive Terminal P- : Charge / Discharge Negative Terminal 🔹 Technical Specifications Product Type: Lithium Battery Protection Module (BMS/PCM) Battery Configuration: 1S (Single Cell) Compatible Battery Type: 3.7V Lithium-Ion (18650, 14500, etc.) Operating Voltage Range: 3.2V – 4.2V Overcharge Detection Voltage: 4.25 ± 0.05V Overcharge Release Voltage: 4.23 ± 0.05V Over-discharge Detection Voltage: 2.54 ± 0.1V Continuous Charge Current: 2A Continuous Discharge Current: 2A Maximum Supported Current: 2A – 5A Protection Functions: Overcharge, Over-discharge, Overcurrent, Short Circuit Terminal Type: Nickel Strip Compatible Board Life Expectancy: More than 20,000 Operating Hours 🔹 Applications This protection board is suitable for: 18650 battery packs Rechargeable lithium battery projects DIY power banks Portable electronics LED lighting systems Battery-powered devices Robotics projects Arduino and ESP32 power systems 🔹 Important Notes Not suitable for LiFePO4 batteries Not recommended for high-current motors above 4A Not suitable for electric bicycles or high-power battery packs Ensure correct polarity during installation Use only with compatible lithium-ion cells 🔹 Package Includes 1 × 1S 3.7V 2A Lithium-Ion Battery Protection Board (BMS/PCM)
7S 20A BMS for 18650 Lithium-Ion Battery Pack – Protection Board with Connector
[Lithium Battery Protection Board] The BMS NMC 7S 20A Same Port is an advanced Battery Management System designed for high-performance 25.9V lithium NMC battery packs. Engineered with integrated protection features and a compact PCB layout, this BMS offers robust electrical safety while minimizing design complexity with its single port for both charging and discharging. This Data sheet is for Lichtronics 7S 20A NMC PCM/BMS Charging Voltage -DC:29.4-30V CC/CV Max continuous charging current – 20A Over charge detection voltage – 4.25±0.05V Over discharge detection voltage – 2.8±0.08V Over current detection current – 40A Operating Temperature -45°C –+65°C Storage Temperature -45°C — +85°C Product Data Sheet Key Features Same Port Design: Combines charging and discharging through a single port for streamlined connections. 20A Continuous Discharge: Supports mid-range power devices with stable performance. Multiple Safety Protections: Overcharge Protection Over-discharge Protection Overcurrent & Short Circuit Cut-off Temperature Detection Passive Balancing: Ensures equal charge across cells for longer battery life. Compact and Lightweight Design: Ideal for tight enclosures or portable builds. Connector Included: Easily connect to standard 7S battery configurations. Technical Specifications Specification Details Battery Chemistry Lithium NMC (3.7V/cell) Configuration 7S (7 Cells in Series) Nominal Voltage 25.9V Charge Cut-off Voltage 29.4V (4.2V per cell) Discharge Cut-off ~17.5V (2.5V per cell) Max Continuous Current 20A Port Type Same port for charge/discharge PCB Size Compact footprint Balance Current 30-60 mA Applications Electric Bikes & Scooters Solar Lighting & Backup Power Portable DIY Power Systems Battery Replacements & Packs Energy Storage & IoT Solutions The PCM NMC 07S/20A SAME PORT (SLCT) is a Protection Circuit Module (PCM) designed for lithium nickel manganese cobalt (NMC) battery packs configured in a 7-series (07S) setup. This module provides overcharge, over-discharge, overcurrent, and short-circuit protection to safeguard the battery and enhance its lifespan. It is rated for a maximum continuous current of 20A, allowing higher current flow for larger applications. The "SAME PORT" feature suggests that both charging and discharging can occur through the same port, simplifying the battery management system. The "SLCT" (selectable) feature likely refers to adjustable settings for specific battery configurations or protections. 📦 Package Includes 1 × 7S 20A BMS Protection Board (with connector)
10S 20A Lithium-ion BMS 18650 Battery Charging Board
[Lithium Battery Protection Board] Overview of this 10S 20A BMS 18650 Battery Charging Board Introducing 10S 20A BMS 18650 Battery Charging Board at best price in India. This 10S 20A BMS provides comprehensive protection and efficient management for 18650 lithium batteries. It offers critical safeguards against overcharging, over-discharging, and short circuits, ensuring battery safety and longevity. Ideal for high-power applications, this 10S BMS for 18650 lithium battery delivers reliable performance and durability. With its 20A current rating, the 20A BMS for 18650 lithium battery charger board supports demanding energy systems. The advanced circuitry ensures optimal charging and discharging, reducing heat and extending battery life. Its robust design and high-performance capabilities make it suitable for both professional and DIY projects. Upgrade your battery management with this efficient and dependable 10S 20A BMS 18650 Battery Charging Board. Features 20A High Current Support: Handles up to 20A continuous current, suitable for high-power applications. Ensures reliable energy delivery for demanding devices and systems. 10S Configuration: Designed for 10 series lithium-ion cells, providing balanced charging and discharging. Maintains cell balance for improved performance and battery lifespan. Advanced Protection Features: Includes protection against overcharge, overdischarge, short-circuits, and overcurrent. Enhances safety and prevents damage to the battery pack. Efficient Heat Management: Built with components that ensure effective heat dissipation during operation. Prevents overheating and maintains consistent performance under load. Compact and Durable Design: This 10S 20A BMS 18650 battery charging board fits easily into various battery setups and projects. Its durable built ensure reliability and long life in diverse condition. Specification No. Tested Item Criterion 1 Voltage Charging Voltage DC:42V CC/CV Blance Volatage for single cell 4.1V 2 Current Blance Current for single cell 40 ± 20 mA Current consumption <= 30µA Max continuous charging current 20A Max continuous discharging current 20A 3 Over Charge Protection Over charge detection voltage 4.25 ± 0.03V Over charge detection delay time <1000ms Over charge release voltage 4.15 ± 0.05V 4 Over discharge detection voltage Over Discharge Protection 2.7 ± 0.08V Over discharge detection delay time 1400ms Over discharge release voltage 3±0.08V 5 Over Current Protection Over current detection current (discharging) 20A±3A Release condition Cut load Over current detection delay time <1300ms 6 Short Circuit Protection Detection condition (120A) Exterior short circuit Release condition Cut short circuit Short circuit detection delay time 300us 7 Temperature Protection Temperature Protection Charging 50°C Discharging 70°C 8 Interior Resistance Main loop electrify resistance VC=4.2V,RDS≤60mΩ 9 Temperature Operating Temperature -45°C –+65°C Storage Temperature -45°C+85°C Package Includes: 1 X 10S 20A BMS 18650 Battery Charging Board
Out of stockTDT 10S 20A NMC Battery Protection and Charger BMS with Balance Hardware
TDT BMS NMC 10S 20A WITH BALANCE Hardware Product Data Sheet The BMS NMC 10S 20A WITH BALANCE (TDT) is a robust and efficient Battery Management System designed for 10-series (10S) lithium-ion NMC battery packs. With a nominal system voltage of 37V and a continuous current capacity of 20A, this module ensures safe and stable operation of high-performance battery packs used in e-mobility, energy storage, and industrial tools. Technical Specifications Battery Chemistry: Lithium-ion (NMC) Configuration: 10S (10 cells in series) input Voltage B+ to B-: -0.3~+20V Overcharge Detection voltage/1CELL: 4.28±0.05V Over discharge Detection voltage/1CELL: 2.8±0.1V Over current: 4-6A Suggest working temperature: -20°C~+60°C Key Features 20A High Current Support Perfect for mid-to-high power battery packs used in electric bikes, scooters, power tools, and solar inverters. Built-in Balancing Function Automatically maintains uniform voltage across all cells to extend overall battery life. Comprehensive Protections Protects against overcharge, over-discharge, overcurrent, short circuit, and thermal runaway. Durable Aluminum Heat Sink Casing Helps dissipate heat effectively for stable thermal performance. Applications Electric Bicycles & Scooters (E-Bikes) Solar Battery Packs & Inverters DIY 10S Battery Pack Projects Cordless Industrial Tools Electric Wheelchairs & Mobility Carts The PCM NMC 10S 20A WITH BALANCE (TDT) is a Battery Protection Circuit Module (PCM) designed for 10 series Nickel Manganese Cobalt (NMC) battery packs, supporting a 20A continuous discharge current. This module is ideal for high-power applications such as energy storage systems, backup power solutions, and electric vehicles. It offers essential protection features, including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe operation of the battery. The WITH BALANCE feature ensures proper voltage balancing across the cells, optimizing performance and extending the battery’s lifespan. The TDT designation indicates a specific manufacturer or design for reliable battery management.
315MHz 4 Channel Wireless RF Remote Control Kit with Receiver Module (Non-Locking Mode)
[RF Module] 📡 315MHz 4 Channel Wireless RF Remote Control Kit with Receiver Module (Non-Locking Mode) 4 Channel RF Remote • 315MHz ASK Communication • 5V Receiver • Non-Locking Mode • Long Range Wireless Control The 315MHz 4 Channel Wireless RF Remote Control Kit is a reliable wireless control solution consisting of a 4-button RF transmitter and a super regenerative ASK receiver module. Operating at 315MHz, this kit is ideal for remote switching, automation, robotics, security systems, and DIY wireless control projects. The receiver module features four independent digital outputs (D0–D3) that correspond to the four buttons on the transmitter. When a button is pressed, the respective output pin goes HIGH, returning LOW immediately after the button is released. This Non-Locking (Momentary/Jog) operation makes the module perfect for applications requiring temporary switching such as electric door control, motor jogging, relay activation, and microcontroller interfacing. The receiver operates from a 5V DC supply and features a high-sensitivity ASK receiver with a Valid Transmission (VT) output pin for reliable signal detection. The transmitter uses a fixed-code encoder for secure communication and easy operation. Ideal for Arduino, ESP32, Raspberry Pi, AVR, PIC, industrial automation, wireless switching, and educational electronics projects. ⭐ Features 4-channel wireless RF remote control kit Operating frequency: 315MHz ASK (Amplitude Shift Keying) modulation Fixed-code RF transmitter Non-Locking (Momentary/Jog) operating mode Four independent digital outputs (D0–D3) High-sensitivity super regenerative receiver 5V DC receiver operating voltage VT (Valid Transmission) status output Compact PCB design Easy interface with microcontrollers Long wireless transmission range (environment dependent) Suitable for DIY and industrial automation 📋 Technical Specifications RF Transmitter Product Type: RF Wireless Remote Control Operating Frequency: 315MHz Number of Buttons: 4 Channels: 4 Modulation: ASK (Amplitude Shift Keying) Encoding Type: Fixed Code Operating Mode: Non-Locking (Momentary) Power Supply: 12V A23 Battery (Not Included) RF Receiver Module Operating Voltage: 5V DC Operating Frequency: 315MHz Receiver Type: Super Regenerative ASK Receiver Receiver Sensitivity: -98dBm Output Channels: D0, D1, D2, D3 VT Output: Yes (Valid Signal Output) Antenna Connection: External ANT Pin Recommended Antenna Length: Approx. 17cm (Quarter-Wave) Module Dimensions: Approx. 41 × 22 × 7 mm Receiver Pin Configuration VT – Valid Signal Output D3 – Channel 4 Output D2 – Channel 3 Output D1 – Channel 2 Output D0 – Channel 1 Output +5V – Power Input GND – Ground ANT – External Antenna Connection 🔧 Operating Modes Non-Locking (Momentary/Jog Mode) Press a button → Corresponding output goes HIGH. Release the button → Output immediately returns LOW. Ideal for momentary control applications. Note: This product is supplied in Non-Locking Mode only. 🔧 Applications Suitable for: Arduino Projects ESP32 Projects Raspberry Pi Projects Wireless Relay Control Home Automation Industrial Automation Remote Door Control Electric Door Locks Wireless Switching Robotics Motor Control Lighting Control Alarm Systems Security Systems DIY Electronics Educational Projects 📦 Package Includes 1 × 4-Button 315MHz RF Wireless Remote Control 1 × 315MHz Super Regenerative Receiver Module ⚠️ Note Battery is included. A 12V A23 battery is required for operation. Avoid bending or touching the receiver's onboard inductor (copper coil), as this may affect receiver sensitivity. Wireless operating range depends on antenna quality, obstacles, and surrounding RF interference. Product appearance may vary slightly depending on the manufacturing batch.
6S 12A Lithium Battery 18650 Charger PCB BMS Protection Board
[Lithium Battery Protection Board] Description PCB BMS 6 Series 22V 18650 Lithium Battery Protection Board is a 6 string 22V circuit power tool mostly used for solar lighting, for dedicated 18650 battery packs. It is designed for 3.7V 18650 models lithium batteries for charging, Protection from overcharge and over-discharge. Battery protection board, as the name suggests battery protection board is mainly rechargeable (Refers to the lithium battery) and protects the integrated circuit board. Lithium battery (rechargeable type) so need protection, is determined by its own characteristics. As the lithium battery, its material determines itself can not be overcharge, over-discharge, overcurrent, short circuit, and ultra-high temperature charge and discharge, so lithium battery lithium components will always follow A protective plate with a sampling resistor, and a current fuse. Application: Battery pack Consumer electronics product 12V voltage rating Power supply Power bank and charger Features/Specs: Battery: 6 Cell Overcharge detection voltage: 4.25 ± 0.025V Over-discharge detection voltage: 2.50 ± 0.08V Overcurrent Protection: 50A Working current: 12A Operating Temperature: -40~+85°C Balanced charge: None. Short circuit protection: Yes. Applicable assembly: Nominal 3.7V Batteries / 6 strings Length: 50mm Width: 32mm Height: 4mm Weight: 6gm Package Includes: 1 x 6S 12A Lithium Battery 18650 Charger PCB BMS Protection Board Note: Product Images are shown for illustrative purposes only and may differ from the actual product
Out of stockMC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System
[Magnetic Sensor] If you want to Apply Extra Security for your house then this Magnetic Switch is needed for you. This magnetic switch is used for triggering an alarm or ON/OFF light inside a cupboard sliding door In-home alarm systems you need many sensors like proximity sensors, Heat detection sensors, and Magnetic door sensors to determine the safety status of the home. In these sensors door sensors are important as these determine whether the gate is open or closed. This is an MC-38 Door Window Sensor Magnetic Switch Home Alarm System Normally Closed type which you can install on your door and use it with your home alarm system. It is very easy to install and conceal and can be easily used in places like your home, office, and hotels. Connection Diagram of MC-38 With Arduino: Features : Easy to install Strong concealment The magnetic sensor alarm, controls the switch of the circuit via the built-in magnet Alarm when someone intrudes into your places Can be used in places like apartments, hotels, offices, etc. Ideal for residential or commercial use. Designed to do embedded in the door or window frame. Package Includes : 1 x MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System. 4 x M5 screws for fitting.
4S 30A Battery Management System ( BMS ) – LifePO4
[Lithium Battery Protection Board] Description Introducing Roboway 4S 30A Battery Management System BMS for LiFePO4 battery at best price in India. It is specially design for superior battery protection and management. This 4S BMS LiFePO4 ensure optimal performance and long life of your lithium iron phosphate battery. With its advanced feature it offer reliable protection against overcharging, over discharging, and short circuit. This Roboway 4S LiFePO4 BMS is ideal for applications who need high current management. It support 30A continuous discharge & make it perfect for high demand device. This BMS 4S is easy to install and integrate easily into your existing battery setup. Its compact design allow for flexible placement in various configuration. This 4s bms system provide easy balancing to ensure all cell are evenly charged. With this 4S BMS LiFePO4 you can extend the life of your battery and maintain their performance. Features Overcharge Protection: This 4s BMS prevent overcharging by disconnecting the circuit at high voltage level. It also ensure the safety and long life of the LifePO4 battery cell. Over discharge Protection: This system cut off the load when battery voltage drops too low. This feature protects the cells from damage due to deep discharge. Overcurrent Protection: This 4s bms lifepo4 include overcurrent protection to prevent damage from excessive current flow. This feature maintain the reliability and safety of the battery pack. Cell Balancing: Its integrated cell balancing ensure even charge and discharge across all cell. This optimizes performance and extend the overall battery lifespan. Specification Specification Details Battery Type LiFePO4 (Lithium Iron Phosphate) Number of Cells 4S (4 series) Nominal Voltage 12.8V (3.2V per cell x 4 cells) Continuous Discharge Current 30A Peak Discharge Current 56A Overcharge Protection Voltage 3.65V per cell Overdischarge Protection Voltage 2.5V per cell Balance Charging Voltage 3.6V per cell Balance Current 50mA Short Circuit Protection Yes Overcurrent Protection Yes Temperature Protection Yes Dimensions 70mm x 45mm x 12mm Weight 35g Operating Temperature Range -20°C to 60°C Charging Current 10A Balance Function Yes (active balancing) Charging Voltage: 14.8V to 18V Charge Current: 20A (max) Constant Discharge Current: 30A Max discharge current: 56 A Overcharge detection: 3.75V ± 0.05V Overcharge Release: 3.6V ± 0.05V Over discharge Detect: 2.1V ± 0.08V Over Discharge Release: 2.3V ± 0.1V Over current Protection: 56 ± 10 A over current Protection Release Condition: Cut Load Connections: Package Includes: LifePO4 4S 30A Battery Management System x 1 JST XH 5 pin Right Angle Connector x 1 JST XH 5 pin Cable x 1
NY-D01 100A Digital Display Spot Welding Controller Board
[Spot Welding Parts] The principle of silicon-controlled phase shifting triggering is adopted to adjust the time and the current to achieve welding. With a digital display, you can directly see the time and current. Optocoupler isolates the strong and weak electricity, making the operation safer. Using a high-precision single potentiometer to ensure reliable and convenient input. The design of a reliable zero-crossing detection circuit ensures the SCR phase shift accuracy. Made of high-quality PCB, the control board is long-lasting. The module is 8cm long, 6cm wide, and 2cm high. It is developed for DIY or simple resistance welding. Features: 1 The use of STM8 industrial control center microcontroller. 2 Strong and weak electricity through optocoupler insulation, safe operation. 3 The power line and foot switch line adopts the bolt the quick connect terminal, more convenient and reliable. 4 Input time, current using a high-precision simple potentiometer, to ensure reliable, convenient input 5 On-board power supply, state, foot, trigger indicator, work status clearly visible. 6 The design of reliable zero-crossing detection circuit to ensure that the SCR phase shift accuracy. 7 The controller is compatible with 100A scr. 8 Digital control interface, you can display the current time and current settings. 9 Input time of 1-50, cycle unit (1 cycles is 20 ms), current input (30-99%), Material Plastic+Metal Current Input 30-99% Microcontroller. STM8 Time input 1-50 Shipping Weight 0.12 kg Shipping Dimensions 8 × 6 × 2 cm Package Includes: 1 x NY-D01 100A Digital Display Spot Welding Controller Board
3.2V BMS 1S 6A LFP 32650 4MOS Lithium Battery Protection Board
[Lithium Battery Protection Board] 🟦 3.2V BMS 1S 6A LFP 32650 4MOS Lithium Battery Protection Board Upgrade your LiFePO4 battery packs with the 3.2V 1S 6A BMS (Battery Management System) featuring a high-reliability 4-MOSFET protection circuit. Designed specifically for 32650 and 3.2V LFP single-cell lithium batteries, this protection board ensures long battery life, safe operation, and stable performance under various load conditions. The intelligent BMS module provides overcharge, over-discharge, overcurrent, and short-circuit protection, making it ideal for DIY battery packs, solar power systems, LED lighting, small motors, backup power, and custom electronics. With a compact, efficient, and durable design, this BMS offers excellent value for your LFP battery projects. ⭐ Key Features 1S LiFePO₄ Protection: Designed for 3.2V LFP batteries such as 32650/32700 single cells. 6A Continuous Discharge Current: Stable performance suitable for most medium-load devices. Advanced 4-MOS Protection: Ensures low resistance, high efficiency, and improved reliability. Full Safety Protection: Includes overcharge, over-discharge, overcurrent, and short-circuit protection. Compact & Easy to Use: Simple wiring makes it ideal for DIY power packs and electronics projects. High Durability: Built with premium components for long life and consistent performance. 🔧 Technical Specifications Type: 1S LiFePO4 Battery Protection Board Battery Type: 3.2V LiFePO₄ (LFP) Single Cell Continuous Discharge Current: 6A Protection Circuit: 4 MOSFET Overcharge Protection Voltage: ~3.60V (typical) Over-Discharge Protection Voltage: ~2.0–2.2V Overcurrent Protection: Yes Short-Circuit Protection: Yes Balancing: No (Standard 1S BMS) Application: 32650/32700 cell packs, DIY LFP projects, solar backup systems, LED drivers, portable devices 🎯 Best Uses 3.2V LFP battery packs 32650/32700 cell protection Solar energy storage Portable electronics & DIY projects LED lights & emergency lamps Robotics & embedded systems Power banks & backup supplies Wiring instructions: 3.2V and 3.7V wiring methods are consistent; B+ is connected to the positive terminal of the battery. B- Connected to the negative pole of the battery. P+ is the positive input of the battery pack input P- is the negative input of battery pack output Specification: 3.2V lithium iron phosphate battery protection board 4MOS: Overcharge detection voltage: 3.75±0.05V Overcharge release voltage: 3.75±0.05V Overdischarge detection voltage: 2.1V±0.1V Upper limit continuous current: 6A Overcurrent detection current: 7A Charging voltage: 3.6V Product size: ~35 * ~8 * ~2.2MM Package Include: 1 x 3.2V BMS 1S 6A LFP 32650 4MOS Lithium Battery Protection Board.
MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module
[Gas and Dust Sensor] MQ-2 Gas Sensor Module The MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke, or Propane. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by the potentiometer MQ-2 gas sensor using gas-sensitive material is to be clean air in the lower conductivity of tin oxide (SnO2). When the sensor when flammable gases are present in the environment in which the conductivity of the sensor with an increasing concentration of combustible gas in the air increases. Package Includes: 1 x MQ2 Gas Sensor Module
Line Tracker Sensor Module HW-006 V1.3
[IR and PIR Sensors] Description The HW-006 V1.3 TCRT5000 IR reflex or line tracker sensor module is based on an infrared reflectance sensor. This is typically mounted at the end of a line that follows the robot chassis. This small tracking sensor module can detect not only transitions from light to dark lines but also objects in front of it. It is ideally used for detecting white or black lines., obstacle detection and meter pulse data sampling. Wiring: VCC: Connect the positive wire of the power supply (5V) GND: Connected to the negative wire of the power supply OUT: High/Low level- Output switching signal SPECIFICATIONS Model/Name HW-006 V1.3 Type Tracker Sensor No of Pin 03 Dimension 35*10*8mm Working Voltage 5V DC Peak Operating Current 20mA to 33mA Output  Digital (0,1) Country of Origin China
2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module
[Lithium Battery Protection Board] 2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module is a small PCB mounted Li-ion Lithium Battery charger protection module. This small and smart battery charger protection module comes with various features like Short circuit protection, Overcharge protection, Over-discharge protection, Overcurrent protection. It is very easy to install and convenient to use in all your DIY portable projects. Pin Descriptions: B+ B-: The interface of battery core P+ P-: The connector of the battery board MB: The connection point between the batteries B+: Battery V+ Positive B-: Battery V- Negative P+: Output / Charging V+ P-: Output / Charging V- Note: The protection board cannot be used for lithium iron phosphate batteries, hernia lamps, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, buggy battery, 775 (4A) above the motor, 1W fisheye LED lamp. Features : Over-Discharge Detection Voltage: 2.3-3.0V±0.05V. Maximum Working Current: 3A. Transient Current: 5A. Operating Temperature : -40-50 C. Internal Resistance: Less than 45m Ω. B+ B-: The interface of battery core. P+ P-: The connector of the battery board. MB: The connection point between the batteries. Package Includes : 1 x 2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module.
1S 12A 18650 3.7V lithium battery protection plate 6 MOS
[Lithium Battery Protection Board] Nowadays Li-ion batteries are most popular to be used in many indoor and outdoor gadgets, these batteries are preferred due to their high charge storage capacity. such batteries are widely used in today’s portable devices. they are compact, more efficient and have a high energy intensity compared to other types of batteries. One drawback of such a battery is that we need to continually monitor their charging and discharging process if we do not do this, it badly affects battery life and also reduces the charge storing capacity. If we discharge such battery below certain voltage range, then the battery cell has a high risk of damage and if we overcharge such battery then it may explode. To overcome such issues, we can use battery protection and battery charging circuits such as this product. This is Li-ion single-cell charger/protection circuit which can be used to charge a single cell of 15 Amp capacity or 2500Mah parallel-connected 5 to 6 li-ion cells. In this MOSFET are employed to do the monitoring task which protects our battery cells from overcharge, over-discharge, and from short circuit. Protection : Overcharge protection. over-discharge protection. short circuit protection. overcurrent protection. Wiring instructions: B+ battery is positive. B- battery negative. P+ outputs the positive input for the battery pack. P- outputs the negative electrode for the battery pack. Specifications and Features : Overcharge detection voltage : 4.25 + 0.05V. Over charge release voltage : 4.23 + 0.05V. discharge detection voltage : 2.45 + 0.1V. Ceiling continuous current : 12A. Overcurrent detection current : 15A. Input Charging voltage : 4.2V. IC components : DW01+8205A. Package Includes : 1 x 1S 18650 3.7V lithium battery protection plate 6 MOS.
4S 100A LiFePO4 Lithium Battery Protection Balance Charging BMS Protection PCB Board
[Lithium Battery Protection Board] ⚡ 4S 100A LiFePO₄ BMS Protection Board with Cell Balancing (White PCB) 4S LiFePO₄ Battery Management System • 100A Protection • Active Cell Balancing • Temperature Protection The 4S 100A LiFePO₄ Battery Management System (BMS) Protection Board is a high-performance protection circuit designed specifically for 4-cell (4S) 12.8V LiFePO₄ battery packs. It provides comprehensive protection against overcharging, over-discharging, over-current, short circuits, and temperature abnormalities, ensuring safe and reliable battery operation. Equipped with 15 ultra-low resistance MOSFETs and an integrated cell balancing function, the BMS helps maintain equal voltage across all four battery cells, improving battery efficiency, performance, and service life. The onboard balancing circuit automatically equalizes cell voltages during charging, reducing cell imbalance and maximizing battery capacity. This BMS supports both common port (same port) and separate charge/discharge (different port) configurations. In common-port mode, it supports up to 60A continuous charge and discharge, while in separate-port mode it supports 80A continuous discharge and 60A charging. The board also includes a temperature sensor interface for additional safety. Designed exclusively for 4S LiFePO₄ (3.2V) battery packs, this protection board is not compatible with 3.7V Li-ion, Lithium Polymer (Li-Po), or ternary lithium batteries. ⭐ Features Designed specifically for 4S LiFePO₄ battery packs High-current 100A protection design Built-in automatic cell balancing Over-charge protection Over-discharge protection Over-current protection Short-circuit protection Temperature protection interface Ultra-low resistance MOSFET design Supports common-port and separate-port wiring Low power consumption Easy installation and wiring Improves battery safety and lifespan 📋 Technical Specifications Product Type: LiFePO₄ Battery Management System (BMS) Battery Configuration: 4S (4 Cells) Battery Chemistry: LiFePO₄ (3.2V Cells Only) Maximum Protection Current: 100A Continuous Discharge Current (Separate Port): 80A Continuous Discharge Current (Common Port): 60A Maximum Charging Current: 60A Balancing Function: Yes Balance Current: 50mA Balance Voltage Accuracy: 3.355V–3.455V Overcharge Protection Voltage (Per Cell): 3.61V–3.69V Overcharge Recovery Voltage: 3.50V–3.60V Overcharge Detection Delay: 1.5–2.5 Seconds Over-discharge Protection Voltage (Per Cell): 2.27V–2.43V Over-discharge Recovery Voltage: 2.45V–2.65V Over-discharge Detection Delay: 0.5–1.5 Seconds Short-Circuit Protection: Yes Short-Circuit Detection Delay: 100–600µs Short-Circuit Recovery: Disconnect Load Temperature Protection: Yes (Temperature Sensor Interface) MOSFET Configuration: 15 Ultra-Low Resistance MOSFETs 🔧 Applications Suitable for: 12.8V LiFePO₄ Battery Packs Solar Energy Storage Systems Portable Power Stations Electric Scooters Electric Bicycles Backup Power Systems UPS Battery Packs Marine Battery Systems Caravan & RV Power Systems DIY LiFePO₄ Battery Packs Robotics Projects Industrial Battery Systems Battery Repair & Maintenance 📦 Package Includes 1 × 4S 100A LiFePO₄ Battery Management System (BMS) Protection Board – White PCB ⚠️ Note Compatible only with 4S (12.8V) LiFePO₄ battery packs. Do NOT use with 3.7V Lithium-ion (18650), Li-Po, LiMn, LiCoO₂, or ternary lithium batteries. Ensure correct wiring according to the BMS connection diagram before use. Product color, PCB layout, and component placement may vary slightly depending on the manufacturing batch. All product images are for illustration purposes only.
NY-D01 40A Digital Display Spot Welding Controller Board
[Spot Welding Parts] This is a NY-D01 40A Digital Display Spot Welding Controller Board. The principle of silicon controlled phase shifting triggering is adopted to adjust the time and the current to achieve welding. With a digital display, you can directly see the time and current. Optocoupler isolates the strong and weak electricity, making the operation safer. Using a high-precision single potentiometer to ensure reliable and convenient input. The design of a reliable zero-crossing detection circuit ensures the SCR phase shift accuracy. Made of high-quality PCB, the control board is long-lasting. The module is 8cm long, 6cm wide and 2cm high. It is developed for DIY or simple resistance welding. Connection Diagram: Features: 1 The use of STM8 industrial control centre microcontroller. 2 Strong and weak electricity through optocoupler insulation, safe operation. 3 The power line and footswitch line adopts the bolt the quick connect terminal, more convenient and reliable. 4 Input time, current using a high-precision simple potentiometer, to ensure reliable, convenient input 5 On-board power supply, state, foot, trigger indicator, work status clearly visible. 6 The design of a reliable zero-crossing detection circuit to ensure that the SCR phase shift accuracy. 7 The controller is compatible with 40A SCR. 8 Digital control interface, you can display the current time and current settings. 9 Input time of 1-50, cycle unit (1 cycles is 20 ms), current input (30-99%), Package Includes: 1 x NY-D01 40A Digital Display Spot Welding Controller Board
Flame Sensor infrared Receiver Ignition source detection module
[Flame Sensor, Sensors] This tiny Flame sensor infrared receiver module ignition source detection module is Arduino compatible can use to detect flame or wavelength of the light source within 760nm~1100nm also useful for Lighter flame detect at the distance 80cm. Greater the flame, farther the test distance. It has the Detect angle of 60° and very sensitive to flame spectrum. It produces the one channel output signal at the D0 terminal for further processing like an alarm system or any switching system. The sensitivity is adjustable with the help of blue potentiometer given on the board. Features : Indicator light: a green one for the switch, a red one for power. Built in a potentiometer for sensitivity control. Onboard signal output indication, output effective signal is high, at the same time the indicator light up, the output signal can directly connect to microcontroller IO. Can detect fire or wavelength in 760 ~ 1100 nm nano within the scope of the light source. Detection angle about 60 degrees, the flame spectrum especially sensitive. The flame of the most sensitive sensors flame, the regular light is also a response, generally used for fire alarm purposes. Package Includes : 1 x Flame sensor infrared receiver module ignition source detection module