Mophie have today released a new version of the Juice Pack, designed specifically for the HTC One, the case for which has been designed specifically to provide complete device protection without sacrificing the phones zero-gap unibody design.

The pack claims to be able to double the battery life off the HTC One after a single charge, providing 100% extra power via its 2500mAh rechargeable lithium polymer battery.

This can all be done on demand, by flicking a simple toggle switch from standby to charge mode.

You can even sync the phone whilst the case is fitted to the device, via the pass-through USB port, and the device also includes a four-light LED status indicator to display the amount of charge available.

The juice pack for the HTC One is available today in both black and silver for $99.95 from mophie.com and various other retailers in the US.

No news yet on the UK however.

This article may include links to affilates, and if you click on one of these affilate links, we may recieve commission.