This is a copper-top that won’t stop, but instead of only providing you with power on the go, it’s perfectly happy with accepting it as well. You see, the Duracell Mobile Charger has been designed to give you as much charging capabilities as possible.

On the one hand, it has a USB port to pump out some power to your iPod, Zune, or other portable device when its battery is running a little low. There’s also a slot where it can help you top up those rechargeable AA/AAA batteries. On the other hand, you have the ability to take the power from those AA batteries and shoot it through the USB port back into your iPod as well. See? Two-way power.

The Duracell Mobile Charger retails for $24.99.