New Trent NT120T USB chargeable 12000mAh Heavy Duty 2A/1A Dual USB Ports External Battery Pack for the Latest Apple iPhone 5, the new iPad, iPad2, iPhone 5/4S/4/3Gs/3G, iPod Touch all versions; Samsung Galaxy Note/Nexus/S3/S2/S; HTC Titan, Sensation, ONE S/V/X, EVO Thunderbolt, Desire; LG Optimus series; Blackberry Bold, Curve, Torch; Motorola Razr HD/MAXX & Bionic, Atrix/2; Nokia Lumia 700/800/90
I have used other backup power sources and the New Trent IMP1000 is a big improvement. With 11000 mAh it provides over five times the power of my Kensington backup without being significantly larger or heavier. I have also used a Duracell Powerpack, which provides plenty of energy, but is much larger and heavier. The IMP1000 provides almost as much backup power as the Powerpack 300 but in a much more portable size and weight. I have used it to power both my iPhone 3G and my iPad (1st generation) and it work