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4S 5A Active Balancer Equalizer Board for LiFePO4/Li-ion
[Lithium Battery Protection Board] 4S 5A Active Balancer Equalizer Board for LiFePO4/Li-ion Software active equalization specification Number of battery pack strings – 4S Balance current ≤5A Balance mode – Active equilibrium working temperature -20°C~60°C The 4S5A Active Balancer (NEEY) is a battery management solution designed for 4 series lithium-based battery packs. It supports 5A of current per cell for active balancing, which ensures that all cells in the battery pack remain at a balanced voltage level. Active balancing redistributes energy from cells with higher voltage to those with lower voltage, optimizing the overall performance and efficiency of the battery. This helps prevent individual cells from becoming overcharged or discharged excessively, extending the lifespan and enhancing the safety of the battery pack. The NEEY model delivers reliable performance in energy storage systems, electric vehicles, and other high-demand lithium battery applications. Applicable battery type : NCM/LFP Teemary Lithium/Lithium Iron Single voltage working range: NCM/LFP version 3.0V-4.2V Balance method : Detect the nearby voltage difference is greater than 0.1V totrigger the start of balanced the adjacent battery voltage difference is less than 003V to stop working Balance current: 0.2V Adjacent voltage difference 0.1V, Balance current: 054-0.74, Adjacent voltage difference 0.2V. Balanced current: 2A LED indicator : 1. When the equalization light is on the equalization work is turned on, 2. The equalization light goes out the equalization circuit sleeps Operating Temperature Range: -20° to 60° The smaller the differential voltage, the smaller the balance current. Package Include: 1x 4S 5A Active Balancer Equalizer Board for LiFePO4/Li-ion 1x Cable
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.
JBD 3-4S/100A Smart BMS For LiFePO4 (LFP) batteries
[Lithium Battery Protection Board] JBD Smart BMS 3-4S 100A (DP04S014) Charge and discharge are both at the same port Product Data Sheet Cell specifications: 3~4 strings of LiFePO4 battery Continuous current: 100A Balance detect Voltage 3.8 Interface type: Charge and discharge are both at the same port Charging voltage: 3.6V*Number of strings Cell voltage range: 2.30~3.75V Continuous charging current: 100A Continuous discharging current: 100A The JBD SMART BMS 100A DP04S014 (3-4S) is a compact and powerful Battery Management System designed for lithium-ion and LiFePO4 battery packs with 3 to 4 series cells. It supports a continuous discharge current of 100A, making it suitable for high-power applications such as electric vehicles, portable power systems, and energy storage solutions. This BMS provides essential protection features including overcharge, over-discharge, overcurrent, short circuit, and temperature management to ensure safe and reliable battery operation. With active cell balancing, it maintains voltage consistency across cells. It also supports UART, RS485, and CANBUS communication, along with Bluetooth for real-time monitoring and diagnostics, offering flexibility and control over battery performance. Package Includes: 1 x JBD 3-4S/100A Smart BMS For LiFePO4 (LFP) batteries 1 x 5 Pin Connector
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
4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module 4S 40A
[Lithium Battery Protection Board] The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module comes with recovery function – AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (If the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650, 26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board which can be easily installed in a compact size or on battery bundle itself. Note: The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery). Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery). Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version). Charging voltage: 16.8V – 18.1V. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Equalization version: suitable for starting current below 80A, power 135W below the drill. Package Includes: 1 x 4 Series 40A 18650 Lithium Battery Protection Board.
JBD 4S 12V LiFePO4 100AMP BMS
[Lithium Battery Protection Board] JBD BMS LFP 4S 100AMP Hardware (ZP04S014) The JBD BMS LFP 4S 100AMP Hardware (ZP04S014) is a sophisticated Battery Management System (BMS) designed to enhance the performance, safety, and longevity of lithium iron phosphate (LiFePO4) battery packs configured in a 4-series (4S) arrangement. This BMS is engineered to manage battery packs with a capacity of up to 100 amperes, making it an ideal choice for various applications, including electric vehicles, solar energy storage systems, and portable power solutions. You can check our others BMS. Product Data Sheet (ZP04S014) Key Features: Comprehensive Protection: Safeguards against overcharge, over-discharge, overcurrent, short-circuit, and temperature anomalies, ensuring battery longevity and user safety. Efficient Cell Balancing: Incorporates a balancing current of approximately 250mA to maintain uniform cell voltages, enhancing overall battery efficiency. Versatile Communication: Supports UART and Bluetooth interfaces, facilitating real-time monitoring and seamless integration with various devices. User-Friendly Configuration: The BMS is designed with an intuitive interface that simplifies the setup and configuration process. Users can easily adjust parameters and access diagnostic information, ensuring the system aligns with specific application requirements. Technical Specifications: Battery Type: Lithium Iron Phosphate (LiFePO4) Series Configuration: 4 Series (4S) Interface Type: (Charge and discharge are both at the same port) Charging Voltage: 3.6V(3.6VxNumber of strings) Continuous Charging Current: 100A Continuous Discharging Current: 100A Cell voltage range: 2.20~3.75V Consumption: ≤150uA Circuit resistance: ≤10mR Operating Temperature Range: -20°C~75°C Size: 144x85x10mm Applications: Electric Vehicles (EVs) Solar Energy Storage Portable Power Systems Marine Applications Uninterruptible Power Supplies (UPS)In summary, the JBD BMS LFP 4S 100AMP Hardware (ZP04S014) is a robust and reliable solution for managing 4S LiFePO4 battery packs. Its comprehensive protection features, precise monitoring capabilities, and versatile applications make it an excellent choice for users seeking to enhance the safety and efficiency of their lithium iron phosphate battery systems. Package Includes: 1 x JBD 4S 12V LiFePO4 100AMP BMS
20S 2Amps Active Balancer Equalizer for Lithium Battery Pack
[Lithium Battery Protection Board] The NEEY 20S 2A Active Balancer Equalizer is an intelligent battery balancing module designed for 20 series Lithium battery packs. It uses active energy transfer technology to redistribute energy from higher-voltage cells to lower-voltage cells, ensuring the entire battery pack remains balanced during operation. Unlike passive balancers that dissipate excess energy as heat, this active balancing system transfers energy between cells, improving battery efficiency, performance, and lifespan. With up to 2A balancing current, the module quickly corrects voltage differences between cells, preventing issues such as cell overcharge, deep discharge, and imbalance. This makes it ideal for solar energy storage systems, electric vehicles, DIY battery packs, power walls, and industrial energy storage solutions. The NEEY active balancer provides reliable and efficient balancing to maintain stable battery pack performance in demanding applications. 🔹 Key Features Supports upto 20S Lithium battery packs Active energy transfer balancing technology Maximum 2A balancing current Improves battery efficiency and lifespan Reduces cell voltage imbalance Low heat generation compared to passive balancing Stable operation across wide temperature range Easy installation with long balance wires 🔹 Technical Specifications Parameter Specification Brand / Model NEEY 20S2A Battery Type Lithium Battery Strings 20S Balancing Method Active Balancing Maximum Balance Current 2A Operating Voltage Range 2.8V – 3.65V per cell Adjacent Cell Difference ≥0.1V (0.5–0.7A balancing) Maximum Balance Current 2A when voltage difference ≥0.2V Working Temperature -20°C to 60°C 🔹 Product Dimensions Size: 95 × 92 × 8 mm Weight: 135 g Balance Wire Length: 60 cm 🔹 Applications Solar energy storage systems LiFePO4 battery packs Electric vehicles (EV) E-bikes and electric scooters Energy storage systems (ESS) DIY lithium battery packs Industrial power systems 🔹 Package Includes 1 × NEEY 20S 2A Active Balancer Unit 1 × Balance Wire Harness (60 cm)
Charging Ballance Plate (4 String 3.2V Lpf)
[Lithium Battery Protection Board] Features: 3.6V balance voltage, balance current is 58mA Purpose:Charge equalization Technical parameters:Balanced voltage and balanced current Note:The balance board is suitable for the lithium iron phosphate battery pack without balanced charge. The charge balance makes each battery pack fully charged at the same time. The equalizer has no charge and discharge protection function, and can not replace the protection board. When the battery is charging, it can discharge the fully charged battery through resistance to balance the shard. Product size: 26*20.5*2.4mm Solder joint description:B- Connect to the negative terminal of the battery pack B1 connects to the contact between battery 1 and battery 2 B2 Connects to the contact between battery 2 and battery 3 B3 connects to the contact between battery 3 and battery 4 B4 Connects to the positive terminal of the battery string
Out of stock12-84V or 7-120V Battery Power Display Meter Lithium Battery Power Display GY-6GS Green Battery Indicator Pro
[Battery Capacity Tester] Introducing 12-84V or 7-120V Battery Power Display Meter design to accurately monitor battery capacity. This 12-84V or 7-120V Lithium Battery Capacity Meter GY-6GS Green Display is ideal for a range of applications to ensure precise voltage and capacity reading. It is also compatible with lithium and iron lithium battery. This meter also provide real time data with a bright, clear LCD screen. This Lithium Battery Capacity Meter feature a use friendly double button design for quick setup. It allows users to manually switch between battery percentage, voltage, and power off functions. The automatic cycling display and settable auto off function enhance convenience and efficiency. With the 12-84V or 7-120V GY-6GS battery capacity meter, you get an intuitive and reliable tool. The waterproof surface and long-lasting buttons add to its durability. Its alarm function alerts you when the power drops below 20%, ensuring optimal battery management. Features Wide Voltage Compatibility: This Battery capacity meter display support a wide voltage range from 12-84V or 7-120V . It accurately measures and display both lithium and lead acid battery level. Clear and Intuitive Display: The high quality LCD with green backlit ensure visibility from every angle. It clearly shows battery percentage, voltage, and status in various lighting condition. User Friendly Design: It is also equipped with a comfortable, long lasting button and waterproof PVC film. The built in buckle allow for easy screw free installation on various device. Safety and Convenience Feature: The backlight flashes an alarm when power drops to 20% or below. It include a switch to turn off power & prevent from consumption when not in use. Customizable Settings: Easily set preferences with the double button design in just seconds. The meter features automatic and manual display cycles, auto off delay, and dual discharge curve option. Specification Voltage Range: 7-120V Battery Type Compatibility: Lithium Battery, Display Type: LCD Display Color Background: Green Measurement Accuracy: ±1% Operating Temperature: -10°C to 65°C Power Consumption: <20mA Dimensions: 61mm x 33mm x 13mm Setting Instruction of 12-84V or 7-120V Battery Power Display Meter Lithium Battery Power Display GY-6GS Green Battery: Long press the Set key, power supply to the product, enter the setup interface Press the Set key to select the battery specification ( Lithium battery (L), Fe battery(F), Lead Acid(P)) Short press the Function key to select the number of battery strings (increasing for the set button, decreasing for function button) Long press the Function key to set s mode. 12-84V or 7-120V any model can dispatch depends on stock. Package Contains : 1 x 7-120V Battery Power Display Meter Lithium Battery Power Display GY-6GS Green Lithium Battery
Out of stock3S 100A LiFePO4 Battery Balance Charging BMS Protection PCB Board-White
[Lithium Battery Protection Board] This protection board is 3s in common use lithium battery protection board (you can adjust for how many strings to be used) Specified chip, stable performance, support disconnection protection, over-current protection, over-discharge protection, overcharge protection, with balance, etc. A common use for “same port” and “different port”, the protection board uses 15 high-power of ultra-low resistance MOS tubes (discharge of 8, charging 7), in the same port mode can support the discharge current 60A, charging current 60A; different port mode discharges current 80A, charging current 60A. Can used for LMO.Ternary lithium battery.LCO(3.7V)battery packs etc. Features: Temperature protect: Yes Disconnect protect: Yes Shortage protection: Yes Shortage delay: 100-600 uS Shortage protect recovery: YES Charging Current: 60A Current Balance: Yes Package Includes: 1 x White 4S 100A LiFePO4 Lithium Battery Protection PCB Board
Out of stockWhite 3S 100A LiFePO4 Lithium Battery Protection Balance Charging BMS Protection PCB Board
[Lithium Battery Protection Board] This protection board is 3s in common use lithium battery protection board (you can adjust for how many strings to be used) Specified chip, stable performance, support disconnection protection, over-current protection, over-discharge protection, overcharge protection, with balance, etc. A common use for same port and different port, the protection board uses 15 high-power of ultra-low resistance MOS tubes (discharge of 8, charging 7), in the same port mode can support the discharge current 60A, charging current 60A; different port mode discharges current 80A, charging current 60A. Can use for LMO. Ternary lithium battery. LCO(3.7V)battery packs etc. Specification: FOR Lithium POLYMER protection Board(3.7V) Single-cell battery overcharge protect voltage: 4.21-4.29 V Single-cell battery overcharge protect recover voltage: 4.14-4.24V Overcharge protect delay : 1.5-2.5S Single-cell battery over-discharge protect voltage: 2.72-2.88 V Overcharge protect Current: 100A Over-discharge protect Current : 100A Over-discharge protect delay : 0.5-1.5S Temperature protect: Yes Disconnect protect: Yes Shortage protection: Yes Shortage delay: 100-600 uS Shortage protect recovery: YES Charging Current: 60A Current Balance: Yes Ampere balance (Current) : 60MA Voltage balance accuracy: 4.14-4.24V Package Includes: 1 x White 4S 100A LiFePO4 Lithium Battery Protection PCB Board * Product Images are shown for illustrative purposes only and may differ from actual product.