BMS 15A 3S 4S 5S 6S 7S 8S 14S 17S 21S Li-ion Lifepo4 LTO Lithium Battery Active Equalizer Balancer Board Balance Capacitor BMS 1.5A 3S 4S 5S 6S 7S 8S 14S 17S 21S Li-ion Lifepo4 LTO Lithium Battery Active Equalizer Balancer Board Balance Capacitor Product Features: 1.Up to 1.5A equalization current, high efficiency equalization and low consumption stability of mature and reliable circuit structure to eliminate the risk of similar failures (equalization current and the pressure difference between the battery varies) 2.Selection of low resistance high frequency ceramic capacitors, the choice of high quality components conducive to the performance of the performance and reliability of the support, (the appearance of the capacitor package and parameters may vary from batch to batch) 3.Low heat generation, high reliability and high precision, suitable for internal battery pack work or external equalization for battery maintenance, equalization accuracy up to 3mV. 4.Wiring plug, matching 24AWG pure copper connecting wire plug (wire length 30CM). 5.Capacitive lithium battery active equalization module is used for voltage equalization between lithium battery packs, and protection boards operate independently of each other. Suitable for battery pack PACK, maintenance, and DIY battery pack use. Product parameters: Product Specifications:3S 4S 5S 6S 7S 8S 14S 17S 21S Equalization current: Maximum 1.5A (varies with differential pressure, internal resistance, line resistance, etc.) Equalization precision:3mV Suitable for batteries: lithium iron phosphate, lithium ternary universal Matching wire:22AWG about 30CM Note: Except for 8s can not be used down string, other specifications can be down a string use Product list: 1X module circuit body 1X connecting wire 22AWG about 30CM Note: Except for 8s can not be used down string, other specifications can be down a string use Q&A: Q1:Difference between similar products A1:Resistive passive equalization (Advantages: cheap, small size, stable, disadvantages: low efficiency, heat) Inductive active equalization (Advantages: cheap, small size, disadvantages: stability is relatively poor easy to bad, general precision) Transformer-type active equalization (Advantages: high precision, high stability, disadvantages: larger volume, higher prices) Capacitive active equalization (Advantages: affordable, high stability, small heat, high precision, high efficiency, Disadvantages: circuit thickness is relatively high) Q2:Wiring rules A2: from 0V (total negative) to start wiring in the direction of any state of 0V (total negative) overhang is very easy to lead to burn the board, be sure to confirm the line order, wrong order burn board! Q3:The consequences of connecting the wrong wire A3:The result is basically burned board, "master" too confident is also easy to capsize, so careful operation is the best policy! Q4:Principles of wire use A4:Supporting wire specifications for the 22AWG (0.3 square) length enough for the principle, the shorter the better. Q5:What is the power consumption of the module? A5:Module power consumption as low as 1.5mA, suitable for long time work without shutting down, the light is always on, when the battery voltage is lower than 2.5V, the module enters into sleep protection mode to prevent excessive discharge of the battery (sleep mode power consumption is as low as 5uA) Q6:Equalization current A6:The limit current that the equalization module can withstand is 2A, the current is not so big if the pressure difference is small or the internal resistance of the battery is big or the resistance of the connecting wire is big; the equivalent internal resistance of the 2A board is 480mOhm, {Total equalization current=pressure difference/(internal resistance of the battery + resistance of the connecting wire + equalization board equivalent internal resistance)}. Q7:Operating temperature A7:The circuit efficiency is very high, the heat generation is relatively low, the general temperature is about 30-45 degrees Celsius. Q8:Equalizer life A8:The products are rigorously tested and shipped, non-human damage (such as moisture soak, reverse wrong sequence, overpressure static electricity, etc.), capacitor life 3-5 years (found that the replacement of capacitors can be bulging), chips, resistors, transistors are generally longer than the life of a human being. _x000D_