Features:The protection board is for 13 series Li-ion batteries, it can be used for ternary batteries, manganeseacid batteries and cobalt acid batteries.Charging connector and discharging connector are separated, continuous discharging current is 15A.Charging 5A, discharging 15A, over-current 45A, suitable for electric bicycles with 500W motor.It has high voltage withstanding and low conduction resistance function.Stablevarious protective functions for charging and discharging, such as accurate overcharge protection, over-discharge protection, over current protection and short circuit protection.Specifications:Overcharge ProtectionSingle Battery Overcharge Detection Voltage4.25V0.05VSingle Battery Overcharge Release Voltage4.10V0.05VCharge ProtectionRated Charging Current5ACharging protection Current/Over-discharge ProtectionSingle Battery Overcharge Detection Voltage2.50V0.05VSingle Battery Overcharge Release Voltage3.00V0.05VRated discharging Current15ADischarging Protection Current455AShort Circuit ProtectionRecovery ConditionDisconnecting LoadInner ResistanceB-, P- conduction resistance25mCurrent ConsumptionSelf-consumption30uASizeL x W x H60 x 34 x 10mm / 2.36 x 1.33 x 0.39"Package Includes:1 x Protection BoardNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..