... lamp Use the safety, no pollution, no memory lithium-ion battery, and the capacity is up to 2400mAH; KM- ... :1. Use the safety, no pollution, no memory lithium-ion battery, and the capacity is up to 2400mAH;2. lithium ... -ion battery built-in overcharge & over discharge protection circuit; long ... operations, head lamp use 1W high power LED and li-ion battery