Accessory Type:Battery Accessories This protection board is in common use lithium battery protection board (you can adjust for how many strings to be used) Specified chip, stable performance, support disconnection protection, over-current protection, over discharge protection, overcharge protection, with balance, etc. Common use for "same port" and "different port", the protection board uses 15 high-power of ultra-low resistance MOS tube (discharge of 8, charging of 7), in the same port mode can support the discharge current 60A, charging current 60A; different port mode discharge current 80A, charging current 60A. Can use for LMO.Ternary lithium battery.LCO(3.7V)battery packs etc. Single cell battery overcharge protect voltage : 4.21-4.29 V Single cell battery overcharge protect recover voltage : 4.14-4.24 V Overcharge protect delay : 1.5-2.5S Single cell battery over-discharge protect voltage : 2.72-2.88 V Single cell battery over-discharge protect recover voltage : 2.9-3.1 V Over charge protective current:100A Over discharge protective current:100A Over-discharge protect delay : 0.5-1.5S Temperature protect : Yes,have Temperature control interface. Disconnect protect : Yes Shortage protect : Yes Shortage delay : 100-600 uS Shortage protect recover mode: Off load release. balance function:yes Ampere balance (Current) : 60MA Current balance accuracy : 4.14-4.24V Model Number:5S colour:black Material:PCB size:62 x 42 x 4mm Package Contents: 3 x Protection Board