Mophie has been making cases with batteries inside for a long time now. The company started out offering battery cases for the iPhone and then moved into offering similar cases for other devices. The company has announced a new juice pack case for Samsung Galaxy S III users.
The case has a 2300 mAh battery inside doubling the talk time and runtime for the smartphone. Mophie promises up to nine hours of additional talk time, up to 11 hours of additional Internet use, and up to 32 hours of additional audio playback. The case is designed to be lightweight and low-profile, to add minimum bulk while doubling the usable life of the phone.
The case features a pass-through USB cord allowing for charging and synchronizing without having to take the phone out of the case. The case also has an on/off toggle switch allowing for standby and charging modes. That switch allows users to turn off the case's internal battery until it's needed. The case also has four LEDs on the back to notify the user of how much power is left inside the case.
When charging, those LEDs also indicate how much charge time remains until the battery is ready to go. The case is available in white right now with a black version shipping on November 28. Both colors will sell for $99.95 each.