questionswhat's the best external battery for smartphones…


I bought this one -

It works fine so far, but I haven't tested its limits yet. I bought it to use on a long flight, only to find out that I will have an A/C outlet in my seat anyway.


@90mcg112: I was just going to link to the same one. Some folks on the Android forums have purchased it months ago and have been claiming 5+ full real-world charges from it.


If you really want to go crazy, Goal Zero ( makes some solar powered kits that can recharge/power everything from a cell phone to a fridge. I have a few of their products and I am looking for justifications to buy more :-)