IC3 Charger Question

[Gaian]

While on the RS website, I looked at ther manual for their IC3 4 cell charger, and it says;

"2. Plug the small end of the adapter cord into the top the charger, and then plug the adapter into a standard wall outlet.

To charge in the car, plug the small end of the car adapter cord into the top of the charger and plug the large end of the car adapter into your car lighter power port."

Sounds good, but when I went and got one, ihe instruction manual had the 'To charge in the car, plug the small end of the car adapter cord into the top of the charger and plug the large end of the car adapter into your car lighter power port' missing from the manual.

I wanna run it in the car, anybody happen to know what adapter I would use from RS? I asked the people there, but they were beyond clueless at this particular RS. Here's a link to the manual:

http://support.radioshack.com/suppor...nics/72086.htm

Or if you have the Rayovac model, what to use?