Single battery voltage: 3.7V Nominal voltage after the battery pack is assembled: 3.7V Single battery capacity: 650mAh Battery combination: 1 string and 1 parallel Battery voltage range after combination: 2.5V~4.2V Battery capacity after combination: 650mAh Battery pack power: 2.4W Battery pack size:?4.5*19*81mm Maximum discharge current: <0.65A Instantaneous discharge current: 1.3A~1.95A Maximum charging current: 0.2-0.5C Charge and discharge times: >500 times 3.7V polymer lithium battery ①Comply with relevant national standards and requirements for batteries ②All finished battery products have been calibrated and tested before leaving the factory. They can be used directlyBluetooth headset, Portable speaker, Muti car jump starter, power bank, Auto cleaner, GPS tracking, Digital ADSL device, Flashligting, emergency lighting, laptop, solar board, ups power, smart phone, wireless microphone, MP3, Walk man, Cordless Phone, Notebook, Video Camera, Digital Camera, Digital Products, Portable DVD, Mobile Communication, Electronic Toys, Game Player, Solar LED light, Emergency lighting, Power tools, E-bike, Medical Equipment, etc.Main export markets: Asia;Australasia;Central/South America;Eastern Europe;Mid East/Africa;North America;Western Europe Main selling point: country of origin;experienced staff;green product;quality approvals R&D strength: market demand——raise product design proposal——preliminary assessment——issuing the trial produce ordering——products quality tracking——pilot plant test report——pilot plant test final report——pilot plant review report——concluding report