In a world where size usually matters we keep asking for smaller and smaller cell phones. We want them lighter too and not that width either. And guess what? Those smart brains developing smaller cell phones will have to insert as many cool features inside those tiny cases or else we’re going to the competition.

And usually developers manage to include a great deal of new features in every phone, despite making them smaller. Unfortunately that also means that the batteries are going to be smaller and therefore pack less energy per charge than we want. Like the G1’s battery for example. It’s not the best battery HTC could come up with. As a matter of fact the G1 will die before the iPhone as the latter one does pack a better battery.

That’s why Seidio came up with the 2600mAh Innocell replacement battery which will get you twice the battery juice than the regular battery. And the Innocell is bigger. Which means your G1 will become bigger than you would want it to be. The picture above is more than explanatory. This Innocell is up for grabs and it costs just $55. Ready to get one?