ZAGG | ZAGGsparq 2.0 | iPhone Charger | iPad Charger | Portable Battery Charger Just wondering if anyone heard anything about these usb chargers. They are interesting to me. Dual usb, 6000 mAh power, and supposidly charge a iphone 4 times fully with the stored battery power in the device, not being plugged in...now that I like! Here are some of their specs too....what you guys think? 6,000 mAh Lithium Polymer Has the power to charge most smart phones four times 4 yellow lights indicate power level, 25%-50%-75%-100% Has the ability to charge multiple USB devices simultaneously Max output: 2000mA @ 5V Power Source: 100-240 VAC @ 50/60 Hz Physical Size 3.5 x 3.5 x 1 inches Weight .54 lbs.