iPod touch Kensington external battery pack for IPT 4G

[1458279]

I've been using the Kensington external battery pack for my old iPod 30G and it's always been able to restore to a full charge from dead.

http://www.kensington.com/kensington/us/us/p/1408/K33459USA/mini-battery-pack-and-charger.aspx

I just used it today on my IPT 4G and it charged it from 1/4 to 1/3

I know these can be home made from battery packs and the adapter and $40 is a bit much for a battery...

Does anyone know of a GOOD strong battery that will bring an IPT back to full charge?

 

[1458279]

Update: I just tried my ReVIVE GoCharge and it took it from about 5% up to full charge and had more to spare.

http://www.newegg.com/Product/Produ...ccessories-_-Accessory+Genie-_-9SIA0SN07H6025

Mine says 1000ma and 500ma and the one in the ad says 2000ma, so I don't know if it's the same.

Upside is that it has an LED flashlight, 2 usb ports, 12v cig adapter built in.

Downside is that it doesn't have a cord for iPod/iPhone, so you have to carry a connector with you.

 

[Apple fanboy]

Why not have a look at these case and battery combination from I power up.
http://www.ipowerup.net/index.php/ipower-tote/ipower-tote-detail
Had a look at a friends and it looks well made. Going to order the pink for my daughter as she is always killing her battery.