2 pcs 3.7V 150 mAh 0.555Wh Rechargeable Li-Polymer Li Battery 402020 Li-ion Cell
2> office devices: Notebook, PDA, portable electrograph, portable printer. High quality and high capacity! Each Cell weight :3 g. 5> Illuminate devices: miner lamp, searchlight. Size :4 mm (H) 20 mm (W) 20 mm (L).