Power Bank that can Charge your Tab

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http://forum.xda-developers.com – Hi Guys, Did anyone of you bought a power bank that can charge your galaxy tab? I bought a Yoobao 15,600mAh Thunderbolt Power Bank YB665 power bank. From it's spec seems that it suppose to be able to charge my P7500 since it has output of up to 2A. - Universal power pack: Suitable for mobile phones, iPhone, iPad, cameras, HTC, SAMSUNG, Blackberry, Nokia, PSP/NDSL, and MP3/MP4 players - Input: 5V DC, 2,000mA - Dual Outputs: 2,000mAh & 1000mAh - Size:152*75*23 mm - Net Weight:380g - Gross Weight:545g Well i'm quite disappointed since it doesn't works. For the time being i'm ju (HowTos)