As smartphone users are continually doing more and more with their devices on the go, power requirements are going nowhere but up.  Enter what is rumored to be the Palm Pre’s spare battery and charger combination.

Seen being used by Palm’s show floor personnel at CES, this plastic case pulls double duty as both a storage and charging solution for your Pre’s spare battery.  It can be powered by your device’s wall or travel charger, and is said to charge the spare battery in 2-4 hours while providing elegant protection.  Since the charging port is just a mini-USB input, finding a charging solution nearby should prove an easy task.

Pricing and availability haven’t been announced yet, but the charger and battery are thought to be packaged together.  There is no charging cable included, you’ll have to provide your own solution.

[via prepoint, thanks Mike!]