- Sep 23, 2013
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I would do the 2nd battery before the solar. You really need two batteries to make best use of solar anyway, so it won't be money wasted either way & you might find the additional battery gave you the extra capacity you need on its own.Then either second battery, (M-H is already set up for the second one) or Solar. The second battery would be an easy fix as it is pre-wired already. Just slot in.
I understand the thinking about going to the dealer so as to preserve the warranty, but not all dealers are created equal. Solar is just one aspect of motorhoming that they have to deal with & maybe not that often either. I would be more inclined to get it done by a specialist auto-electrician with extensive solar experience. The two best known, by virtue of their reputation & activity on the forum, are Dave Newell & VanBitz (others are available ). Both give discounts to members - Broken Link Removed. Neither are cheap, but both are value for money. Almost certainly better value for money than a dealer & far more certain of getting a proper job done, with proper advice.
(With apologies to all those motorhome dealers who actually do know what they are doing with solar - both of you. )