I have said on several occasions that I really like my iPhone, but the battery life isn’t that great. Now that I can get games on my phone, the battery life is even worse. Spend an hour or so playing a game and half the battery is gone in a flash.

Chinavision has a new iPhone case that has a rechargeable battery built into the case. The battery in the case charged via the Apple charger that came with your iPhone. An adapter cable is included that turns the iPhone connector into a mini USB from the looks of it.

That will allow you to charge both the case battery and the main battery on the iPhone at the same time. Chinavision says the case has enough power for one complete iPhone charge. The way the case is built, the iPhone is always plugged into the extra battery so you should get roughly twice the battery life. The case retails for $25.19 and the worse thing I can see about it is that it is not that attractive.

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