Features: Protection circuit board is the heart of battery pack, must to have to avoid battery pack from explosion, fire and damage. It will protect battery pack from overcharging, over-discharging over-current and short circuit. With equilibrium function to keep each cell in balance and good service life. Used for 4 series 12V LiFePO4 batteries, comes with 5P-250mm wire. Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries. Specifications: Discharge Continuous Discharging Current 100(Maximum) A Instantaneous Discharge Current 150 A Charge Charging Voltage 15 V Charging Current 10(Maximum) A Overcharge Protect Over-charge Detect 3.750.05 V Protect Delay 0.5 S Over-charge release 3.650.1 V Balance Detect Voltage 3.600.05 V Release Voltage 3.600.05 V Balance Current 365 mA Over-discharge Protect Over-discharge Detect 2.00.1 V Over-discharge Detect delay 0.1 S Release Voltage 2.250.1 V Over-current Protect Detect Voltage 150 mV Detect Delay 9 mS Current Detect 20010 A Release Condition Cut Load Short-circuit Protect Protect Condition Load Short Circuit Detect Delay 250 uS Release Condition Cut Load Temperature Protect / / Resistance Inner 25 m Self-Consumption Working Current 20 uA Sleep Current (when Over-discharge) 10 uA Working Temperature Range -30/+80 Size: 70*51.5*10mm / 2.75*2.02*0.39" Package Includes: 1 x Battery Protection Board Note: The cable color is random, please take the real one as standard. 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. 1Protection circuit board is the heart of battery pack, must to have to avoid battery pack from explosion, fire and damage 2It will protect battery pack from overcharging, over-discharging over-current and short circuit 3With equilibrium function to keep each cell in balance and good service life 4Used for 4 series 12V LiFePO4 batteries, comes with 5P?250mm wires 5Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries