· Single battery voltage: 3.7V · Nominal voltage after the battery pack is assembled: 3.7V · Single battery capacity: 200mAh · Battery combination: 1 string and 1 parallel · Battery voltage range after combination: 3.0V~4.2V · Battery capacity after combination: 200mAh · Battery pack power: 0.74W · Battery pack size: 4*21*33mm · Maximum discharge current: <0.2A · Instantaneous discharge current: 0.4A~0.6A · Maximum charging current: 0.2-0.5C · Charge and discharge times: >500 times 3.7V polymer lithium battery · Comply with relevant national standards and requirements for batteries · All finished battery products have been calibrated and tested before leaving the factory. They can be used directly1. With more than 12years' experience and more than 600 skilled staff serve you. 2. Factory ISO9001:2015 approved and most products comply with UL,CB,KC standards. 3. Wide range of production line covers Li-polymer battery,Lithium ion battery, and battery pack for your various demand.Bluetooth 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.