This is a 3S 10A battery protection module for 18650 lithium batteries or polymer lithium battery series combination. It provides over-charge, over-discharge, over-current, short circuit protection. Features and Specifications: Operating current : 6 – 8A. Current limit : 10 – 13A. Storage condition : -40 ~ 80 ℃. Resting current: less than 30uA. Effective lifetime: over 30,000 hours. Internal resistance: less than 100mΩ.