(adsbygoogle = window.adsbygoogle || []).push({}); The Third Rail System includes a Slim Case for the iPhone 4 with a slide-on Smart Battery that allows you to add power when you need it and remove it when you don't.

Feature:
● Add power when you need it- remove it when you don’t
● Includes the Slim Case for iPhone 4 and a Smart Battery
● Use Slim Case as an everyday protective case
● Thinnest battery enabled case on the market
● Use Smart Battery as an universal external charger or slide onto Slim Case for additional power for your iPhone 4
● Check your power capacity with the push of a button

You can purchase the system for $89.99.

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I hope something like this get released for the iPod Touch 3G :y:

that looks dope

Is awesome no more problems with Low Battery

does it work with ipods?

No is designed exclusively for the iPhone 4. :n:

that sucks

its nice that its slim, and others i have seen are ridiculously big ha
but its a bit expensive in my opinion

yeshhhh only 89$ myn was 15 lol

man that is kewl... i am suprised that these aren't like totally popular