Overcharge and discharge protection to prevent overcharge and discharge of the battery. Overcurrent protection to prevent abnormal high current of batteryBalance protection, battery voltage balance, make battery life longerStable heat dissipation, stable heat dissipation of the aluminum substrate, saferTVS safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOSSmall and Medium Inverter UPS Tool High Current Lithium Battery DedicatedModel: 4 strings of iron lithium 50A with equalization - the same portContinuous current: within 50AInstantaneous current: 100ACharging voltage: 15~16VCharging current: within 50AOvercharge protection: single 3.75V0.025VOver-discharge protection: single 2.0V0.1VShort circuit protection: yesBoard size: 53x76x8mmApplicable assembly: 3.2V lithium iron phosphate batteryColour:silverMaterial:PCB+MetalPackage Contents:1 x Battery protection board1 x Cable (30CM)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.