Podmods, Maintenance, Tips and Tricks : Is a on/off switch necessary for batteries?

Thanks for the info!

 My Rpod is sitting out in the back 40 on a ranch of a friend of mine. I have an extension cord plugged in to a 110 20 amp circuit , but it's a hundred feet away on a 12 gauge cord. I have heard of multiple owners having problems with their converters and felt it might be better to just charge/maintain  the batteries while it sits there rather than use an expensive to replace converter if it goes bad due to full time use.

 Charging them one at a time means i would have to disconnect one or the other because they are still connected together and the current would still go to both?   so this seemed like the same thing to me. 

I was out there today tested /Toned and followed the wires and they do go straight to the batteries, 2-12 volt batteries). I plugged in the charger/maintainer to the Zamp port and it's charging. my charging unit has the same plug. 

My first mod was to move the spare mount tire to the front, I welded the tire mount between the batteries, to both battery cross braces so the tire sits between the batteries snug against the frame and the propane tank, had to move the propane tank forward a four inches to have it all fit. It's a little tight to get to the batteries behind the tire Without taking it off, and and was looking for a simple solution.

thanks again!

rgds John