... Rechargeable ultrathin Li-polymer battery 3.7v 200mAh 502030Speifictions:1. safety very well.2. small impendance.3. lighter weight.4. ... Product Description: 1. 3.7V 200mAh Li -Polymer Battery 2. CE,RoHs,UN38.3 Certificate 3. A Grade Battery 4. Manufacturer ,OEM/ ... ~35 Applications: GPS, Electronic lighter,Portable DVD, PDA, Cellular phone, notebook, earphone, bluetooth devices, MP3, MP4, R/C toys ...