Inverter for car charging

[RBarr]

I found the perfect AC converter for the car! It's a tiny one-piece unit that plugs into the cigarette lighter and provides a single receptacle. Current is limited to 0.7 to 1.0 Amp AC, but that should be plenty for a G3.

Price? $15. Location: Farm & Fleet. (I know it's regional, but odds are the same critter will pop up elsewhere).

[Deckyon]

Radio shack has something akin to this as well... Not sure on the price.

[pradeep1]

Pep Boys (an auto parts store) and I think Walmart also carry inverters. They are in the $15-20 range.

[CoolToolGuy]

Why bother with an inverter? I bought a charger via eBay (Lenmar, I believe) with an AC adapter as well as a car cord for about $25. With that, the camera is not committed during charging (good if you have an extra battery).
Have Fun

[Deckyon]

I use mine to power the camera when I have it hooked onto my telescope and on most of the night. I have a deep cycle, 12v battery with cig-lighter outlets, like a car start emergency battery. I run a laptop, camera and telescope on this. It generally lasts through about 19 hours of constant use.