Haven't paid enough attention to test scientifically, but I think even my lowly E5 outlasts my iPod 5th Gen's battery. So if my iPod needs charging, I charge the FiiO too, never been an issue the way I use it.
The only time I run out of Amp battery is if I've been amping my gaming setup with it after a few sessions using the FiiO with my iPod first. And it's not like an Amp is an emergency device anyway.
All that said, however, a low battery indicator can only be good
The only time I run out of Amp battery is if I've been amping my gaming setup with it after a few sessions using the FiiO with my iPod first. And it's not like an Amp is an emergency device anyway.
All that said, however, a low battery indicator can only be good