iphone 4s power case

digp

would be grateful for a recommendation.
need a case (prefer one is thin) that can extend the battery life with its own built in battery. thanks.

digp

Has anyone used any of the ones mentioned here: http://www.macworld.com/article/1160878/iphone_4_battery_cases.html

If so views appreciated.

Buzby

Yes - they work as advertised and give a useful extension to the operating period. However, they prevent the use of decent protective or fashion covers, and as I opted for a Otterbox Defender, it was an either/or - and I ended up not using it all that much (keeping it handy if required).

Rev

This gets excellent reviews

http://www.phonesuit.com/iphone-battery-case-phonesuit-elite-4