... discharge8.Environmental friendly1) polymer Li battery 501445 headset battery2) 3.7V 250mAH3) CE, RoHS certification4) High capacity5) Long ... office devices: Notebook, PDA, portable electrograph, portable printer. 3.Video devices: GPS, digital camera, camcorder, portable DVD, ... POS, Handy, Fingerprint machine, portable stock machine. 5.Illuminate devices: miner lamp, searchlight.6.Others: toys, ...