Looking for a battery pack with universal plugs for phones, etc

I dont know why I didn't do this in the first place.  But, I was just to dumb to think of it.  After two forum threads, I realized that I can just go down the below route:

What consumer device has the most capacity (longest time to keep my wireless USB transmitter charged).

I am currently using the below product (which only last about 4-5 hours or so on two Energizer lithium batteries)

http://www.amazon.com/Energizer-Cel2Mot-Energy-Motorola-Phones/dp/B000JD39X8/ref=pd_cp_cps_2

I would like to get a battery pack with many Universal plugs that doesnt require me to take out batteries and can power the same type of devices as the one above; except last me a lot longer (as long at it's not bigger than roughly a pack of cigarettes (volume-wise).

I saw the below one, but not sure if it has the same kind of output compatible with the above device.  Maybe there's something similar to the one below that has even more capacity?  I saw a 12000mah device.  But, it didn't look like it had universal connectors.

http://www.buy.com/prod/portable-10000mah-5v-double-usb-connector-universal-external-power/232032093.html

I also found the below one, which looks like it's even more questionable that the last link

http://club.dx.com/forums/forums.dx/forum.137221

I'm anxiously waiting to order ASAP!

Thanks a million!!!