MATECam Rechargeable Battery Lithium ion Replacement Lipo Battery 3.7V 800mah for RC Quadcopter Mini Camera Rechargeable high volume Lithium-ion Battery,built-in protection circuit PCM for prevent over charging or over discharging Size: 1.68(L)*1.31(W)*0.22(H)(inch) (16 gram class) Rating: DC3.7V 800mAh. It has a plug, very easy to change it. The item will be put in retail plastic bag, Just open and you will find it. Rechargeable Battery For RC Quadcopter Mini Camera GPS PSP DVD PAD E-book tablet pc power bank video game