ITEM NAME:3S 12V 18650 Li-ion Lithium Battery 25A BMS PCB Protection Board Balan NTA Descriptio n Material: FR4 Color:as shown picture Size: 56mm*45mm*1.2mm Overvoltage range: 4.25-4.35v ±0.05v Overdischarge voltage range: 2.3-3.0v ±0.05v Maximum working current: 0-25A Maximum transient current: 34-40A Quiescent current: less than 30uA Internal resistance: less than 100mÃŽ © Working temperature: -40 --- + 50 ° Storage.3 string 12V18650 lithium battery protection board. Lithium battery protection board 1. Protect your lithium battery. Internal resistance: less than 100mÃŽ ©. The capacity of the battery internal resistance is closer will be better.