LI-on Polymer battery 1.rechargeble 2. factory direct 3.3.7v 300mAh 4.for RC toys Application:1.Bluetooth,Mp3,Mp4,Gps ... ,4.mobile power,electronic cigarette , etcLI-onPolymer battery rechargeble for RC toys factory direct 300mAh Adventage:Green product various dimensionsLow impendenceExcellent discharge ...