anybody with an external usb battery to try and tell me if it works and how many amps your battery can deliver?
also from the guide they pretty much tell that any DSP option checked would almost half battery life. and like a noob I always used at least one of the DSPs, so I don't know how long it can last if everything is OFF and we don't use the screen except to pick an album.
I did almost 10 hours with stuff checked.
lastly did you go through the music analyzer, and how long did it take for you? I gave up after an hour and it was telling me to expect 7more hours ...