ANART Cradle Desktop Charger Case 900mAh 3.7V Li-ion Rechargeable Battery for ANART SPC-01, SPC-04, SPC-09 Sports Camera The ANART Cradle Charger with Additional Battery is perfect for charging your battery up, instead of right from the camera. It will give you double the recording time with your ANART SPC-01, SPC-04, SPC-09 camera. You just take the plug your camera has included and attach it to the cradle with the battery attached. Now you have the ability to charge it with your computer or USB Adapter for an outlet or even an external battery charger. This is simple and easy to use and you don't have to take out the entire camera to charge your battery.You also get an additional battery for charging when the one you have is not powered up. Included - The charging cradle and rechargeable battery. While one needs charge you can use the spare to continue recording. Durable - Well made design, not easy to break or fall apart. Just what you need to recharge a battery when it's power is low. It works well charged fast and cradles them when they are charged. Small and convenient when traveling