Lo Key Box Battery
The Lo Key Box Battery is a discrete battery in the shape of a key fob. A cartridge can be screwed into the 510 thread and can be folded downward to make your device more compact and portable. It has a built-in USB plug that sits flush with the body of the battery. The charger can be pulled out whenever it needs to be charged and tucked away when it's finished. This device is a 350mAh battery and is perfect for those who are on-the-go and want a convenient device that they can carry on a keychain.