Power Converter

Yes. Buy a DC power supply at Radio Shack. It will probably only cost $15. Make sure you get the power rating correct, both voltage and current. Extra current doesn't hurt but not enough can do damage. I'd recommend taking the charger in with you to make sure it's right and to get the proper connector.

-- Ah sh*t! sys64738 --

You need to check the current. It should give you a "Ma" rating, which stands for milliamps. If the converter is equal to or higher than the charger's requirements then it will work. If lower, don't use it. You may damage the charger and / or battery.

As for wiring, I'm assuming the charger came with a cigarette lighter plug for car use. The easiest way to deal with this is to buy an inline female cigarette lighter socket and wire it to the power adapter. Attach positive to the center connector, negaive to the outer. Double check that the charger is wired that way before you plug things in or you'll likely ruin the charger. Positive wires are generally the one with a white stripe or texture. Negative should be smooth.

If you really want to wire it directly, just cut off the cigarette plug from the charger and solder the wires to the bare wires coming out of the adapter. But then you can't charge out in the field without a power inverter.

-- Ah sh*t! sys64738 --

Yes, but do you really want to break out the soldering iron every time? Making it modular would be so much more simple. I would leave the cig lighter on the charger, and simply stick a female sig lighter on the power converter. That way, you can always plug it into the car or the wall by connecting or removing the wall adapter. No tools necessary. The female cig socket should only cost a couple dollars.

If you're thinking of just twisting the wires together, I would not recommend it. You'll get a bad connection and run the risk of them touching. The first can cause damage over time and the second can cause damage immediately.

-- Ah sh*t! sys64738 --

That's exactly what I'm saying. All you have to do is put a female cigarette socket on the wall adapter. That way you can charge plugged into the car or wall by attaching or removing the wall adapter. You don't have to cut the cig lighter plug off the charger.

Also remember to never put a male connector on the power side. If you install a male connector on that wall adapter it's gonna electricute the first person to touch the connector. ALWAYS USE FEMALE CONNECTORS ON THE POWER SIDE OF THE CABLE!!!

edit: Here, I drew you a snazzy diagram. <A HREF="http://www.camerasupport.com/oV/charger.gif" target="_new">CLICK!</A>