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Old 01-01-2022, 11:16 PM   #1
Junior Member
Brand: Thor Motor Coach
Model: ACE 27.2
State: California
Posts: 20
THOR #15058
Battery disconnect

I have an ACE 27.2 with 200 w solar and 2 Costco Marine LA series 27 batteries. Also have the Renogy battery monitor. I would like to put a disconnect switch on the coach batteries, but leave the solar connected. Is it possible? If so, can someone diagram it for me? Thx.

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Old 01-07-2022, 03:35 AM   #2
Senior Member
simidrm's Avatar
Brand: Thor Motor Coach
Model: Tuscany 40ex
State: Ohio
Posts: 408
THOR #12726
Unhook the positive cable from battery and hook to disconnect switch and use another cable to the other side of switch back to the positive post of battery, find the charge wires from your solar panel and hook to directly to the battery
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Old 01-09-2022, 12:24 AM   #3
Senior Member
Brand: Thor Motor Coach
Model: 2013 31L
State: Florida
Posts: 2,139
THOR #908
check the book for your solar controller. Mine from Renogy says it will do harm to the controller if the solar panels are connected with no battery place for the juice to go to.
when I did my install I made up some clear labels at the disconnect breakers that I out on both sides of the controller, to turn the panels off first and on last.

so while I'm a huge proponent of disconnecting the batteries whenever it's not being used, now I just leave my house battery connected, and the solar offsets the drains on it while in storage. Now I just disconnect using the use/store switch that controls the disconnect relay...that way solar still has the batteries but most of the loads are removed.
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