msgtnobody Report post Posted June 26, 2015 I bought a used 2008 Monaco Lapalma and just noticed that there is only 1 12v deep cycle house battery & 2 12v chassis batteries. The original owners book said it had 4 6v batteries for house. Should I replace the 12v?? I don't plan on boondocking at all if I don't have to. What is proper wiring I would need to do it if I have to change batteries. Share this post Link to post Share on other sites
wolfe10 Report post Posted June 26, 2015 If you do not camp without shore power or plan to run the generator, the single 12 VDC battery may be enough-- what size/group is it? There is a wide range of capacities, all 12 VDC from small car batteries (not deep cycle) to 8D starting and 8D deep cycle batteries-- BIG differences. And, were you to change to a pair of 6 VDC batteries, you would need a battery cable to go from the negative post of battery #1 to the positive post of battery #2. Then the positive wire to house to the positive terminal of battery # 1 and the coach ground wire to the negative terminal of battery #2. Think of those two 6 VDC batteries in series as "a 12 VDC battery in two pieces". If you did a lot of dry camping, yes, four 6 VDC batteries would be a good idea. Share this post Link to post Share on other sites
msgtnobody Report post Posted June 26, 2015 I think I should get the 4 (6) volt batteries. because I would like to use the generator sometimes. The owners manual says: 6 Volt Domestic** U2200 (4 each) 450ah 75 Amp @ 80° F = 230 Min Share this post Link to post Share on other sites
wolfe10 Report post Posted June 26, 2015 It is use of the coach WITHOUT running the generator that calls for a larger battery bank. And, 4 U2200 golf cart batteries will give you a TOTAL of about 450 ah @ 12 VDC. And, for long battery life, do not discharge below 50%. That means that even when brand new and fully charged, you would want to recharge after using about 225 amp-hrs of power. Share this post Link to post Share on other sites
