We're not particularly fond of over-sized battery covers in general; your average smartphone is chubby enough. That said, some handsets need more help than others in the longevity department and, given that we found the G1
's battery life to be about a third that of the iPhone's in our review
, it certainly falls in the "more help" camp. Seidio's Innocell 2600mAh replacement does the trick, offering more than twice the oomph of the stock 1150mAh cell, but it also resulting in a considerable bump in the chubbiness of a phone that wasn't particularly slender to begin with. Suffice it to say if you're still bummed about the G1's chin rubbing you the wrong way in your pocket this won't be the upgrade for you, but if your little Android stays constantly tethered to your laptop just to keep kicking, this might be $55 well spent.