Accessory Type:Battery AccessoriesThis 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- 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:100AOver discharge protective current:100AOver-discharge protect delay : 0.5-1.5S Temperature protect : Yes,have Temperature control interface.Disconnect protect : Yes Shortage protect : Yes Shortage delay : 100-600 Shortage protect recover mode: Off load release.balance function:yesAmpere balance (Current) : 60MA Current balance accuracy : 4.14-4.24VModel Number:colour:blackMaterial:PCBsize:62*42*4mmPackage Contents:1 * Protection BoardOnly 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.