However, to get the 5V USB charging to work on a +/-11V system, you will need a step up circuit and like any circuit of this kind, they tend to be noisy. In exchange however, we are spared from carrying a dedicated charger or the inability to use when charging. I'll say it is a compromise for the better.
Sorry if these are stupid questions. Will wall chargers that plug into a USB work for non computer charging? Either way, will I be able to charge the E12 if I plug it into my laptop? Or do I need a separate "step up circuit" (not sure what that is) to charge from my laptop?