... very well. 2.small impendance. 3.lighter weight. 4.larger capacity. Rechargeable ultrathin Li-polymer battery 3.7v 200mAh ... 502030Speifictions:1. safety very well.2. small impendance.3. lighter weight ... 60 7. Storage Temperature; -20~35 Applications: GPS, Electronic lighter,Portable DVD, PDA, Cellular phone, notebook, earphone, bluetooth devices, ...