Best rugged back-up batteries for iPhone

You'll want to bring your iPhone along for your more adventurous activities, but you'll also want to make sure it has enough juice for you to take pictures, check notes, and chill out with when things aren't so extreme. Take a gander at these extra-tough backup batteries that can handle a tumble and a splash without a problem.

Your favorites?

Those are some of my favorite rugged battery chargers. What have you used lately to make sure your iPhone stays alive while roughing it?

Simon Sage

Editor-at-very-large at Mobile Nations, gamer, giant.