3.7V 650mAh 403748 li-ion polymer cell 1.manufacturer 2.long service life ... Scope This specification shall be applied to Li-ion polymer battery manufactured by Shenzhen Jinke Energy Development Co., ... fire,No explosionVolage≥3.7V4Drop TestAfter standard charging , drop the battery from 100cm height onto a 18mm~20mm ... Y,Z directions each (total 6 times)After the drop test, discharge the battery @1C to 3.0V ...