Battery Model:KNY555165 Nominal Voltage:3.7V Minimum Capacity:2000mAh(0.2C discharge) Type：Li-Polymer Charging Voltage:4.2V Discharging Cut-off Voltage:3.0V Standard Charging:0.2C/4.2V Max Charging:1.0C/4.2V Batteries Applications: Telecommunications: Cellular phone,interphone,blue tooth earphone,ect. Video Devices:MP3/MP4/MP5,digital camera,portable DVD,portable television,electronic cigarettes,electricity sound box,ect. Portable Devices:GPS,PDA,E-Book,PMP,PSP,Laptop,Walkie-talkies,portable medical devices,etc. Illuminate Devices:Miner lamp,search light,ect. Others: Electric Toys,RC models,model aircraft,backup power,mobile power supply,hand electric drill,ect.