Features: The protection board is for 10 series cell Li-ion batteries, it can be used for ternary batteries, manganese acid batteries and cobalt acid batteries. Charging connector and discharging connector are separated, discharging current is 35A. Stable various 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 Continuous Discharge Current 35A Momentary Discharge Current 100A Charge Charge Voltage 42V Charge Current 8A(Max.) Overcharge Protection Overcharge Detection Voltage 4.28±0.05V Overcharge Protection Delay 100mS Overcharge Cancel Voltage 4.08±0.05V Balance Balance Detection Voltage 4.2±0.025V Balance Cancel Voltage 4.2±0.05V Balance Current 56±5mA Over-discharge Protection Over-discharge Detection Voltage 2.55±0.08V Over-discharge Detection Delay 50mS Over-discharge Cancel Voltage 3.0±0.1V Overcurrent Protection Overcurrent Detection Voltage 150mV Overcurrent Detection Delay 15mS Overcurrent Protection Current 120±5A Protection Cancel Condition Disconnect Load Short Circuit Protection Short Circuit Protection Condition Outside Load Short Circuit Short Circuit Detection Delay 200uS Protection Cancel Condition Disconnect Load Internal Resistance Main Circuit Conduction Internal Resistance ≤15mΩ Self Power Consumption Working Current ≤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 .