Features: The protection board is for 10series cell Li-ion batteries, it can be used for ternary batteries, manganeseacid batteries and cobalt acid batteries. Charging connector and discharging connector are separated, discharging current is 35A. Stablevarious protective functions for charging and discharging, such as overcharge protection, over-discharge protection and short circuit protection. It has balance function which would ensure each battery cell being fully charged at same time.Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries. Specifications: Discharge ContinuousDischarge Current 35A Momentary Discharge Current 100A Charge ChargeVoltage 42V Charge Current 8A(Max.) Overcharge Protection OverchargeDetection Voltage 4.280.05V Overcharge Protection Delay 100mS Overcharge Cancel Voltage 4.080.05V Balance BalanceDetection Voltage 4.20.025V Balance Cancel Voltage 4.20.05V Balance Current 565mA Over-discharge Protection Over-dischargeDetection Voltage 2.550.08V Over-discharge Detection Delay 50mS Over-discharge Cancel Voltage 3.00.1V Overcurrent Protection OvercurrentDetection Voltage 150mV Overcurrent Detection Delay 15mS Overcurrent Protection Current 1205A Protection Cancel Condition DisconnectLoad Short Circuit Protection ShortCircuit Protection Condition OutsideLoad Short Circuit Short Circuit Detection Delay 200uS Protection Cancel Condition DisconnectLoad Internal Resistance MainCircuit Conduction Internal Resistance 15m Self Power Consumption WorkingCurrent 50uA Sleeping Current(Battery Over-discharge) 10uA Operating Temperature -30~+80 Size 69*51.5*10mm/2.71*2.02*0.39" Package Includes: 1 x Protection Board 1 x Cable.