Feature:1. Basic Specifications: This is a 4S 3.2V for LifePo4 protection board, which is practical2. Protection Function: The protection board has overcharge protection, overdischarge protection, overcurrent, short circuit protection3. Alloy+PCB: This is a protection board made of high quality alloy+PCB material, which is durable4. Application: Very suitable for home DIY work and school science projects, widely used in battery protection work5. Easy to Use: This is an easy to use protection board, which with a long service lifeSpecification:Item Type: 4S Protection BoardMaterial: Alloy+PCBCharging Current: 50-150ASingle Cell Balance Current: 0.07ASingle Battery Consumption: 25uAInstantaneous Current: 300-900AOvercharge Protection: Single 3.65VProtection Delay: 2 SecondsBalance Current: 0.07ASwitch Control: Off State, Power off, Power on and RecoveryOvercharge Protection, Overdischarge Protection, Overcurrent ProtectionOver Discharge Protection: 2.5VOver Temperature Protection: 75.Package List:1 x Cable Protection Board1 x Yellow Pad Note:Short circuit protection: 100% protection is not guaranteed