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Car Forum / Driving, Maintenance, Tuning / RVs / May 2006Mixing 12v and 6v Batteries?
I have a brand new RV (and 12v deep cycle house battery). There is room for 2 more batteries on the battery tray (plenty of room for 6v batteries). I want to buy 2 new 6v golf batteries .... the question is ... do i toss the existing 12v (new) battery, or use all three (12v in parallel w/ the 2 6v in series)? Is there an advantage to running all three? Will it cause "problems"? Should I use a battery selector and use the 12v as a backup? Thanks! Jay >I have a brand new RV (and 12v deep cycle house battery). There is room for >2 more batteries on the battery tray (plenty of room for 6v batteries). [quoted text clipped - 7 lines] > >Jay Hi, The advantage is that you will gain a little more amps by adding the 12V to the two 6V. Two 6V golf cart will give you around 220 amps. The one 12V is probably 80 amps. The three would be about 300 amps. Most places tell you not to mix different battery types or even mix the same types by age but doing so isn't going to cause any major problems unless one of the batteries is near the end of its usefulness. In that case the weaker batteries can draw down the good ones faster then normal. If the 12V isn't causing any problems I would just leave it there and use it as a back up, just because of the all the extra wiring you will have to do for just 80 amps. The two 6V should be enough unless you are running a big inverter. See the following site for lots of battery information. www.batteryfaq.org. Take care and Happy Campin...  SignatureRichA "We Get Too Soon Olde and Too Late Smart" >I have a brand new RV (and 12v deep cycle house battery). There is room for >2 more batteries on the battery tray (plenty of room for 6v batteries). [quoted text clipped - 10 lines] > I have two 12 v in my class a, and it does just fine. Why not get one > more 12 v. >>I have a brand new RV (and 12v deep cycle house battery). There is room >>for 2 more batteries on the battery tray (plenty of room for 6v [quoted text clipped - 12 lines] >> I have two 12 v in my class a, and it does just fine. Why not get one >> more 12 v. Bill, if your using Outlook Express for your newsreader you really should change your "send" options so one can tell the original post from your reply. Click Tools, Options, Send, Plain Text Settings under News Sending Format and check the box that states "indent the original text with" and pick a symbol. It makes reading ones reply to a post much easier. >>>I have a brand new RV (and 12v deep cycle house battery). There is room >>>for 2 more batteries on the battery tray (plenty of room for 6v [quoted text clipped - 18 lines] >Format and check the box that states "indent the original text with" and >pick a symbol. It makes reading ones reply to a post much easier. Agree with you. I actually passed Bill's post thinking there was no reply. Eddie > I have a brand new RV (and 12v deep cycle house battery). There is room for > 2 more batteries on the battery tray (plenty of room for 6v batteries). Do you dry camp much? At all? > I want to buy 2 new 6v golf batteries Why? > do i toss the existing 12v (new) battery, or use all three Use all three. > Is there an advantage to running all three? Yes. Increased capacity. > Will it cause "problems"? No, especially since the batteries would be virtually brand new. Most trouble wrought by MIXING battery types is usually when particular cells in the bank are MUCH weaker than the others. That's why mixing "batteries" of different types, particularly if they are not brand new, is NOT AS GOOD as if they were identical. Go ahead with the hookup you enumerated and you're good to go. Better bet, less weight, more value: Generator. Run the 12VDC and "top off" with the genny every day or two. The hassle of the care and feeding of three flooded, lead acid "batteries" isn't worth it for me now, with a genset. A single, Group 31 12VDC battery is sufficient for our dry camping needs. > Should I use a battery selector and use the 12v as a backup? Considering they would all be virtually BRAND new, that wouldn't accomplish anything more than increased hassle and wiring. Gang 'em together and dry camp until the cows come home. (First one to fire-up their genset buys the next round at the campfire!) Signature:) JR 2000 Skamper Ultra 249 TT 2002 Chevrolet Silverado 2500HD Vortec 8100 - Allison 1000 |
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