Best AA Battery Charger for iphone 3g

[sonex]

Hey just wondering if these AA battery chargers for the iphone 3g actually work and if they work well.

e.g. http://cgi.ebay.com/ch04-AA-Battery...39:1|66:2|65:12|240:1318&_trksid=p3286.c0.m14



I wonder if anyone has experience with these, and what they would recommend as the best and cheapest charger

Thanks