External battery pack

[alric]

I own a Javoedge external battery pack that I used to charge iPods, a PSP and a DS. However, I tried it with the iPhone and it does not seem to charge.

JAVOedge claims on its website that it does work with the iPhone. Emailed them and they said I need a different cable other than the one that came with the iPhone.

Is this possible? Does the iPhone cable somehow regulates voltage? The battery outputs 5.5V

Thanks for any thoughts!

 

[alric]

This external battery does work with the iPhone:

http://www.javoedge.com/reflexeshop/productCatalog/getProduct.do?poid=1595&pbmId=13195

For some reason you have to use their cable and tips. The iPhone or iPod cables don't work. Tested them myself after much skepticism.