MugenPower has backup battery that lets you leave all your charging cables at home. Plus, it's thin!

Most chargers these days are getting slimmer, so to differentiate, MugenPower is using the Qi wireless charging standard.

It features an inductive charger on top that lets you top off a Qi-compatible device by stacking the two together. But if you need cables anyway, it's also got a microUSB port. Got you covered! [MugenPower via Ubergizmo]