I had one of those on my MH. They are usually 5-8 watts and are only good to counter parasitic drain. Almost worthless. If yours is not hooked up, you can be sure it's doing nothing for your battery.
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Tony & Ruth........... FMCA#F416727
2016 London Aire 4519, Freightliner chassis, Cummins ISX, 2018 Jeep Wrangler Unlimited, Blue Ox Avail with AF1. TST 507 TPMS
No amount of money can buy you an extra second of time.
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