... -10°C~ +55°CCycle Life300 timesSelf-dischargeResidual Capacity>90%Application:Notebook Computers, Backup power supply, Medical Device, Tent Electric bicycles, HEV ... lithium ion battery,lithium battery,li-polymer battery,lithium battery pack,ultra-thin battery,shaped battery,triangle shape battery,irregular shape ... long-term cooperation! 3.7V 1900mAh lithium polymer rechargeable battery pack