Anybody running dual batteries? What are you using for an isolator/solenoid? Any ideas?
I run a 1000ca/850cca Red Top Optima in the Jeep.
I found a (very dirty) 870ca/750cca Yellow Top Optima sitting on a trash can by the buggy coral at Wally world the other night, took it home, dropped it in the jeep, and it started right up. I've put a drain on this thing over the weekend, and it still starts great so I don't understand why it was sitting on a trash can. I'm going to trickle-charge it for a few days and then drop it in the Jeep as the primary and use it for a week or so to be sure it's good. (with the Red Top in the back, just in case)
Having it has sparked my interest in a dual battery setup, to run a small air compressor for the tires, and a decent sized inverter, one day a winch, and maybe even the added lighting that's on there. I haven't decided if I'm going to put it in the rear of the Jeep, or do away with my factory air box and put it there.
What specific products do you guys suggest using to charge both batteries, but keep them separated?
On a side note, check the picture in the following link. It shows the second battery in place of the factory air box (on the driver's side. See at the top center of the engine, they've got just a cone filter stuck on there. Is that a good or bad idea? I think it'd be great for keeping water out, but I dunno. If it's not a horrible idea, then I'll probably go with putting the battery under the hood.
Thanks for the input guys!