Feature:1. Basic Specifications: This is a 4S 3.2V for LifePo4 board, which is practical2. Function: The board has overcharge , overdischarge , overcurrent, short circuit 3. Alloy+PCB: This is a board made of high quality alloy+PCB material, which is 4. Application: Very suitable for home DIY work and school science projects, widely used in battery work5. Easy to Use: This is an easy to use board, which with a long service lifeSpecification:Item Type: 4S BoardMaterial: Alloy+PCBCharging Voltage: 14.6VCharging Current: 50-150ASingle Cell Balance Current: 0.07ASingle Battery Consumption: 25uASingle Cell Balance Voltage: 3.6VInstantaneous Current: 300-900ARecovery Voltage: Single battery 3.0V (With Automatic)Overcharge : Single 3.65V Delay: 2 SecondsBalance Voltage: 3.5V Single CellBalance Current: 0.07ASwitch Control: Off State, Power off, Power on and RecoveryOvercharge , Overdischarge , Overcurrent Over Discharge : 2.5VOver Temperature : 75? Package List:1 x Cable Board1 x Yellow Pad Note:Short circuit : is not guaranteed