ITEM NAME:2X(4S 100A 12V Protection Board For Lifepo4 Life 18650 Iron Phosphate BatteM9G3) 2X(4S 100A 12V Protection Board For Lifepo4 Life 18650 Iron Phosphate BatteM9G3) 2X(BALANCING FUNCTION: This battery protection module has a equilibrium function to keep each cell in balance and can extend the service life of battery. MULTIFUNCTIONAL: This battery protection board will protect battery pack from overcharging, over-discharging over-current and short circuit, very useful. PORTABLE: This battery protection board is very portable, great for DIY work. FOR 4 SERIES 12V LiFePO4 BATTERIES: Used for 4 series 12V LiFePO4 batteries, 5P-250mm wires included for your convenient use. WIDE APPLICATIONS: Suit for home DIY work and school science project, wide used in battery protection work. Discharge:Continuous Discharging Current 100A(MAX)/Instantaneous Discharge Current150A Charge:Charging Voltage 15V/Charging Current 10A(MAX) Overcharge Protect: Over-charge Detect 3.75 ±0.05V/Protect Delay 0.5S/Over-charge release 3.65 ±0.1V Balance:Detect Voltage 3.60 ±0.05V/Release Voltage 3.60 ±0.05/Balance Current 36 ±5 mA Over-discharge Protect:Over-discharge Detect 2.0 ±0.1V/Over-discharge Detect delay 0.1S/Release Voltage 2.25 ±0.1V Over-current Protect: Detect Voltage150mV/Detect Delay 9mS/Current Detect 200 ±10A/Release