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Old 04-12-2015, 07:11 AM   #1
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Are Solar Battery Chargers good to use during storage

Anyone use a solar charger to keep their batteries up when shore power is unavailable during storage outside??? ( Xantrex 3000, and 6 batteries)

I'm in the sunny south....

What brand charger?? How installed???? How do you run wires???
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Old 04-12-2015, 09:29 AM   #2
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While you are about it, why not consider two or three 200W panels and a quality solar regulator so you can reduce generator use and maybe explore boondocking options.

Regulator should be installed as close as practicable to the batteries and a regulator that has a temperature compensation probe will give best performance. MPPT regulators are all the rage nowadays and do have advantages under some conditions. If you are just installing a 100W panel to keep the batteries charged during storage, then MPPT is probably a waste. Since you really need to keep the starter batteries charged as well, you might consider a solar regulator with dual charging outputs, or as an alternative, something like a Trik l Start will do a good job.

Running wires? Hmmmm! The professionals often seem to take the decidedly unprofessional shortcut of running the cables down through the top refrigerator vent, down behind the fridge and then into the battery box. Nothing really wrong with that of course but to me seems a bit primitive.
Make sure the down feed cables are sized well above the minimum in case you decide to add more solar later. Same with the regulator.

All my vehicles - including the mower - use solar to keep all batteries in good condition and they can sit for up to two years at a time. One does get a fair bit of snow, but by making sure all loads are disconnected, they seem to survive having no solar input for a couple of months.
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