... cycles Safety,no fire,never explode CE&ROHS appr. 18650 Cylindrical Battery Cell(1)High Quality(2)High Safety&high-temperature working ... (more than 2000 cycles)(6)Environmental friendly(7)The lifepo4 battery pack is widely used for electric bicycle,golf car,electric ... bike,electric wheelchair,power tools,electric scooter,emergency light,etc. 18650 Cylindrical Battery Cell