12 to 6 v battery switchout

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   Thanks to you both. 
The batteries were connected and only "disconnected" via the disconnect switch, so if it is bad that would explain.  I expect I can test that by hooking the new batteries up, setting the disconnect switch to "off" and then checking to see if my interior lights work.  Right? If the switch is bad can it drain enough power to deplete the batteries while not enough for my lights to work?

I'll check that pin. These are good ideas but I can't check them out until at least Thursday.  I'll keep checking here to add to my list of things to check and I'll report back. Thanks so much for the help.

Great about Costco though, right? I bet they won't do it more than once though  ;)

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EchoGale Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Mar 2019 Location: FL Online Status: Offline Posts: 463	Post Options Post Reply Quote EchoGale Report Post Quote Reply Topic: 12 to 6 v battery switchout Posted: 05 Dec 2022 at 8:38pm
	Thanks to you both. The batteries were connected and only "disconnected" via the disconnect switch, so if it is bad that would explain. I expect I can test that by hooking the new batteries up, setting the disconnect switch to "off" and then checking to see if my interior lights work. Right? If the switch is bad can it drain enough power to deplete the batteries while not enough for my lights to work? I'll check that pin. These are good ideas but I can't check them out until at least Thursday. I'll keep checking here to add to my list of things to check and I'll report back. Thanks so much for the help. Great about Costco though, right? I bet they won't do it more than once though ;)
	Julie

StephenH Members Profile Send Private Message Find Members Posts Add to Buddy List podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6289	Post Options Post Reply Quote StephenH Report Post Quote Reply Posted: 05 Dec 2022 at 8:25pm
	Flooded batteries will self-discharge. Even so, two months is rather short unless there was some load on them that you did not know about. How about the pin for the towing disconnect cable? Is it perchance pulled? That would put a heavy load on the batteries.
	StephenH Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS

Tars Tarkas Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 14 Jan 2013 Location: Near Nashville Online Status: Offline Posts: 1446	Post Options Post Reply Quote Tars Tarkas Report Post Quote Reply Posted: 05 Dec 2022 at 8:17pm
	I'll be interested to hear how this sorts out. That's great about Costco replacing them! From what you've said, I don't see the problem. Two sixes in series is the same as 2 12s in parallel, as far as voltage is concerned. Were the batteries totally disconnected or were they connected with a disconnect switch in the circuit? Could be a bad switch. TT
	2010 176 FJ Cruiser

EchoGale Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Mar 2019 Location: FL Online Status: Offline Posts: 463	Post Options Post Reply Quote EchoGale Report Post Quote Reply Posted: 05 Dec 2022 at 4:27pm
	Greetings: Three months ago I replaced my 12 volt batteries (I had 2) with 2 6 volt golf cart batteries. I checked and re-checked to be sure that they were connected properly in serial. They have been sitting for 2 months, water level checked, and battery disconnect switch off. Today I checked them and found that they are dead. One is reading 0.0. and the other a little over 10. one has developed an small bulge in the top of the case. Costco can't check them or put a charge on them but the good news is that they said if I bring them in they'll just replace them! Before I put the new ones in I want to make sure I didn't do something wrong that caused this. Did I need to make other changes for this switch from dual 12 to dual 6? Am I wrong that a couple of months sitting (while disconnected) shouldn't be a problem? While I know they are dead because I tested them with my multimeter and because when I turned the disconnect switch on the lights weren't working, but is there anything different about using my multimeter on these batteries than there was on my 12 volt (also connected in series)? Thanks for the help :)
	Julie