Key Specifications/Special Features: Single battery voltage: 3.7V The nominal voltage of the battery pack after assembly: 3.7V Single battery capacity: 2200mAh Battery combination: 1 series 2 parallels Battery voltage range after combination: 3.0-4.2V Battery capacity after combination: 4400mAh Battery pack power: 16.28Wh Battery pack size: 20*40*70mm Maximum discharge current: <3A Instantaneous discharge current: 5~7A Maximum charging current: 0.2-0.5C Charging and discharging time:> 500 times Packing method: PVC heat shrinkable filmOver Load Protection Short Circuit Protection Over Current Protection Over Temperature ProtectionFound in 2009, xuanli embraces being the best partner in power supply, friendly and intelligent technologies as its vision to focus on the development of batteries supply, and strives to build up a competitive edge through resource integration and optimized management. XUANLI produces that are used in a broad range of applications, such as computers, communications, consumer electronics, automotive electronics, cloud computing as well as healthcare. XUANLI is a world-leading provider of batteries supply. Based on the latest international standards, XUANLI electronic Co., Ltd is an experienced manufacturer of batteries specialized in smart battery packs,18650 lithium batteries,polymer lithium batteries,lithium iron phosphate batteries,power batteries,battery chargers and various special batteries. The products have a lot of international certifications such as ISO、UL、CB、KC.Payment Terms: T/T Sample Lead Time: 5-7 days Mass Production Lead Time: 30 daysCommunications equipment: mobile phones, PHS phones, Bluetooth cellphones, walkie-talkie Information equipment: laptop computers, PDA, portable fax machines, printers Audio-visual equipment: digital cameras, camcorders, portable DVD, VCD Others: electric bicycles, miner's lamps