One of the members on this BBS is graciously helping me with my RV electrical system, and he's told me to get a battery isolator to run from the alternator that's being used to charge my 20 deep cycle batteries. I don't want to keep bugging him so i thought I'd throw this out to everyone: What is the battery isolator for?
I just bought a 200 amp 12v alternator that we're going to use to recharge the battery bank. And I found a battery isolator here: http://www.emarineinc.com/products/alternators/isolators.html
(although i'm not even sure it's the exact thing Nick's looking for). But I can't figure out exactly why it would be needed. Any insight would be appreciated!