This balancer supports 12-16s battery This is an equalizer, it can balance the voltage difference between the battery packs, making the battery more durable, the battery life will be longer, It is not a BMS, so there is no overvoltage, overcurrent, and overdischarge protection, but it can work with BMS, It works with Li-Ion and LifePO4 batteries and can be used with any capacity battery, Since the balancing current is fixed, the balancing time of -capacity batteries is slow, and the balancing time of small-capacity batteries is fast. Applicable battery type: Li-ion/LEuFEPO4/LTO Single cell voltage range: Li-ion/LEuFEPVo4 version: 27-42v lto version: 18-42v Voltage accuracy equalization: 5mv (typ.) Balance : The patented balance structure adjusts the capacitance mode, and the entire battery pack participates in active balanced energy transmission at the same time Current balance: voltage difference 008v, balance current 1A, voltage difference is proportional to balance current, maximum allowable working current 60A Under-voltage protection Sleep voltage: Li-ion/LEuFEPO4: lower than 27V LTO: below 18V Working temperature:-10~60 Whether an external supply is required: no external supply is required, the whole group is balanced by the transmission inside the battery size:10x8x2cm Material:pvc colour:black Package Contents: 1 * Lifepo4 module 1 * Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.