Ever you think sometime you need any battery urgent! for your TV remote, AC remote, Handphone or other. But you have no any charger. Those matters are that make the USB rechargeable batteries producer makes it here. You will never illfeel to turn on your gadgets if you know this USB batteries. If your power of batteries lost you just need to plug it to your notebook’s USB port. It USBCell easy to be used as normal battery and recharge as USB drive.