1.3.7v 1100mah li po battery 2.flexible size 3.customer design 4.battery factory 5.pass Rohs,CE,UN38.3,MSDS 1 ... , Electronic motor, EVs, Electronic tools, Toys, back-up power, emergency power portable mobile power, medical equipment, heating equipment, health care equipment, defend electronic ... ±0.5150.5±0.5133 063450 3.7v 1100mah rechargeable li-polymer battery (customer design)