1.li polymer battery 3.7v 500mAh 2.flexible size 3.customer design 4.battery factory 5.pass Rohs,CE,UN38.3,MSDS 1.ApplianceThis model is flexible in size and used in Electronic bike, Electronic motor, EVs, Electronic tools, Toys, back-up power, emergency power portable mobile power, medical equipment, heating equipment, health care equipment, defend electronic devices.2.Delivery timeNew sample: ...