Not to totally diss the Super Brain 959's that I've been using for the last couple years, but I finally bumped up a level. One of my 959's wasn't charging anymore for some stupid reason, so on the way out to our home made rc track, we stopped by Hobby People and I picked up a
Multiplex LN-5014 for $65 at employee price.
We got out to the track, and put the charger to work. I left my real car (Honda Accord) idling, and attached the charger leads to the battery. The input voltage can be from 11-15 volts, and I figured the drain on the car's battery would be less if it was idling anyway, so I put a couple 6 cells in series on it and set it for 4.5a. They'd been only partially drained, so it was a quick bump.......and the Multiplex did it wonderfully. I ran a couple other packs through it before calling it a night, no real complaints other than the DC only inputs.
The other great thing about this goodie is that now I'm set for a Lipo plunge, just once I get some more cash.