July 21 2015: STK Accessories   has just launched a  highest capacity  jumbo  12000 mAh Power bank, which can provide up to 80 hours of talk time and 320 hours of audio playback.
The Power Bank bears two USB ports (one with 2.1A and the other with 1A output) for simultaneous charging, to charge your gadgets around the clock. With no switches on the bank, it starts charging as soon as you plug something in.
The Power Bank has the ability to power up 4-5 life cycles of the media device (depending upon their input power lifecycle varies). It has dimensions 138 X 62 X 22, and weighs 280 grams.  The lithium – polymer Power Bank can power up smart phones, MP3, MP4, 1 AMP Tablets and other such devices.
 It costs Rs. 3299