The Samsung Galaxy S handset already has a user-replaceable battery. The kind you don’t even have to unscrew some screws to get at even. Just open the back cover and swap it out for a fresh one. It’s designed to be that easy.

So we aren’t sure why you would want to bulk up your phone with this thing, even if it does give you an extra 8.5 hours of talk time. Still, we’ve seen worse. Nothing on pricing or availability yet.

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