New Trent Easypak 7000mAh Portable Triple USB Port External Battery Charger/Power Pack for Smartphones, Tablets and more (w/built-in USB cable)
I plan to do a follow up to this review with much more detail, but this is a great universal backup for any phone or tablet, without question.<br /><br />One minor drawback, this unit doesn't actually come with a 120V AC to 5V DC (USB) charger, but those are easy enough to appropriate.  Personally, I would recommend a charger with 2 amps output since the battery will draw one amp to charge, and that's a fairly common adapter to find.  For example: [[ASIN:B009YDFX7Y Samsung OEM 2.0 Amp Travel Charger with De