These use to be an Eneloop thing, now as Panasonic have taken over this is their largest model (outside of Japan?).
Picture of DSE receipt: http://tinypic.com/view.php?pic=258pm6e&s=8#.U6PwavmSwlY
QE-QL201 Portable Power
Back-up power source for heavy duty use. Power for up to 2 extra charges.*
Capacity: 5400 mAh
Powerful & quick: Charge your device quickly with max. 1.5A output.
Double USB: Can charge two devices at once.
Power indicator: Smart LED's show battery & charging status.
Compact: 62 x 70 x 22 mm
Lightweight: +/- 142 g
Perfect for your smartphone and tablets.
~5 hours of rechargeable power, depending on device.
(*) Estimated with a 1400 mAh battery capacity smartphone. It may change depending on battery conditions and circumstances.
In store only, does not appear to be on their website. Half price, below is a link to the Panasonic page which shows specs/picture.
DSE Stock code is: S4491
http://www.panasonic.com/middleeast/en/consumer/batteries-la…
That's nice that it has two outputs.