Zap!
 

A little help, please... since there isn't a "Batteries" category.

I just got my brand new DSR-400 today. I bought three AB Hytron 120 batteries. Can someone give me an estimation on how long I can expect them to provide power with minimal use of the on-camera light and other goodies?

Those suckers are huge, by the way. It's like carrying a motorcycle battery around on the end of the camera.

Umm, ummmm, ummm.... and what a camer it is. Anyone want to buy my tricked out XL-1s (FU1000), 16X manual servo lens, MA100, wireless mic, handheld mic, and more. I 've been using if for ENG.

Should last you around 4 hrs. Perhaps slightly less if you've got a load of other equipment being powered by it.

Charles, if you want to sell your equipment, you can do that in the Private Classifieds boards, that's where people sell and buy their things.
Good luck!