You can usually find dozens of cases, including those with backup batteries for iPhones, but it’s becoming increasingly difficult to find them for other phones. mophie is known for their juice pack cases with backup batteries for iOS products and even for external battery packs, and now they are introducing one for the Samsung Galaxy S III. The juice pack for the Samsung Galaxy S III leaves all the ports and controls open, and it doesn’t interfere with the NFC or S Beam capabilities, so you can continue sharing through touch. It has a 2300mAh battery to extend your talk time by up to 9 hours on 3G or 7 hours on 4G. If you charge the juice pack while it’s on the phone, your phone will be charged as well. There are four LEDs on the back of the case that show you how much power the battery case has before you leave the house, so you’re never caught without power. The juice pack for the Samsung Galaxy S III is available in white (available now) or black (shipping Nov 28) for $99.95.