Don't get stranded with a dead battery again. The 15000mAh Power Castle battery keeps almost any device charged on the go for $34.99.
This external battery lets you charge two devices simultaneously, including the iPhone (4S and up), Samsung Galaxy (S3 and up), the iPad Air and Mini, wireless PS4 controllers, GPS devices, LG, Nexus, Motorola, and BlackBerry phones, and plenty more. SmartID technology optimizes charging depending on the device so you get the most power and fastest speed out of each charge. And though it's big on power, the battery's compact size makes it super portable.
Head to TweakTown Deals to get the 15000mAh Power Castle battery for $34.99, a savings of 73%.