Canadian tire did just have 2 x 40 watt panels on for like $200, which is a pretty good deal. I would imagine you wouldn't need anything else besides your current battery unless you upgraded to 2 6 volt batteries like what blueski posted above. Maybe that would be enough, I don't know how much power is drained from moving the trailer slides in and out.
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"You're worried about the team not having enough heart. I'm worried about the team not having enough brains." HFOil fan, August 12th, 2020. E=NG
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