Below is a link to the FASTEST recharging system available!
It can rechange I-C3 NiMh Batteries in 15 minutes!!!! They also boast that is some devices (Like Digital Cameras) they will last 4x longer than alkaline batteries!!!
http://www.rayovac.com/15minutes/info.html
The down side is that you have to use their charger and their batteries, the up side is that their batteries will charge in any charger, but only at that charger's top speed. (1 hour charger will still take 1 hour) and their charger can charge regular NiMh batteries, but it takes overnight.
I'll be getting one of these soon.
This looks like a MUST for any heavy driver.