Lenmar MSC-1L Mach 1 Alpha speed charger, charges DVX batteries in half the time, comes with interchangeable plates so it can also charge Canon, Sony, and JVC batteries, and includes a DC cigarette-lighter plug.
I have a universal lenmar charger with the panasonic adaptor plate. This works great for me; I've had no problems with my previous camera (JVC, for two years) and none since I bought my DVX100A in February.
You can find this on various vendors' sites, but I think I bought mine from www.batteries.com or something like that. It comes with both AC adapter AND the DC cigarette lighter adapter and also works to "condition" the batteries (I don't know if that works or not but I had used the same batteries on my JVC camcorder for 3 years without losing more than a few minutes charge before I sold it, for what it's worth). Just make sure when you order it, you get the correct adapter plate.