... battery 3,material:MENTAL 4,long life,super-brightness led bulbs Feature 1) Battery(free maintenance):high capacity ... -acid 1800Mah 2) 1 long life,super-brightness LED bulbs 3) Long life battery could be recycling ... standard. Please dont use when charging, it would burn LED bulb, or damage inner componenrs. Please dont shine ... charging.(Suggestion:charging in daylight time) Rechargeable led flashlight