Back-up battery for iPhone 4s?

[DavidandLeahZ]

Hi everyone,

Going to be going on our first vacation with my iPhone 4s.

Does anyone have any recommendations regarding a back-up battery that attaches (easily) to the phone so we don't have to continue to plug it in while out?

 

[Tozzie]

Hi everyone,

Going to be going on our first vacation with my iPhone 4s.

Does anyone have any recommendations regarding a back-up battery that attaches (easily) to the phone so we don't have to continue to plug it in while out?

I have something called power monkey here is a link to it on amazon, it comes with a few different atatachments so you can use it with a camera, iphone,ipod, ipad a ereader etc. I love it, it saved me on a few very long flights.

http://www.amazon.com/Powermonkey-PowerTraveller-Portable-Charger-Grey/dp/B000JUBTYC