Thanks Chris, can you elaborate why relying on the circuitry of the camera is not favorable (asside from the convenience aforementioned)?  

Just updated my XH2 to the latest firmware, and my camera now keeps blacking out. I can only get it to work again by taking the battery out, and back in. Anyone else have the issue?

External charging is the way to go. Doesn't rely on circuitry of the camera. Also, if you shoot any length of time you're going to be swapping batteries, and you can use one while charging the other.

Have you found a solution yet? I'm also facing the same situation as you

Is there a way to keep your menu selection on the last option you used? For example.  When I select MENU the cursor defaults to MY Menu.  I scroll up to IQ settings, make a change, and return to shooting. When I press the MENU button again the cursor is back to MY Menu.  I really want it to stay on the IQ setting I was last using (or any other Menu setting). It's a PITA to keep scrolling up and down, back to the previous setting.  (Note.  My Canon Menu retains the position of the last option I was using). Thanks in advance for any help.