Ok, so another battery question. The motor home I may buy next week has 2 12 volt batteries in it, not that that makes a difference in my question. I will be storing my unit at home and have a pedestal with 30 amp service.(It was installed when a previous trailer was 30 amp). Over the winter I have some options. Should I leave the MH plugged in all winter and the batteries connected. If I do this, I have a new Battery Minder (not a battery tender that only trickle charges) that keeps the batteries from sulfating---should I attach that to the batteries too or or should I disconnect the batteries, and just use the battery minder. And if I do that, can I leave them in the rig or should I bring them in the house. I am thinking I should bring them in and use the battery minder. I am open to suggestions. Thanks all.

I always brought my batteries in the garage on shelf with a trickle charger in the winter if I wasn't going to be using it for a while. An ounce of prevention...

my rv sit,s in a pole bldg coach plugged in eng battery on a tender,do nothing with coach batteries. meter says 13.3 thats ok with me.

Turn off your battety disconnect and just leave the batteries in the MH. No nred for a charger as there is no discharge. If they won't hold a charge all winter disconnected they need replacing.

I would keep them plugged to shore power so that they are fully charged. I think (?) SULFATING only happen if less than fully charged and high temp

There is no reason to remove the batteries for winter. If you have a smart charger/inverter then just plug in and check the water once or twice during the winter. If you only have a one stare charger, put a timer on its power cord and set it for 2 hours a day.My coach is plugged in during the winter and the batteries only come out when needing to be changed. Kip It Simple..........Richard

batteries in the winter | Good Sam Community

16 Replies

RLS7201
Explorer II
Nov 03, 2023
There is no reason to remove the batteries for winter. If you have a smart charger/inverter then just plug in and check the water once or twice during the winter. If you only have a one stare charger, put a timer on its power cord and set it for 2 hours a day.
My coach is plugged in during the winter and the batteries only come out when needing to be changed. Kip It Simple..........

Richard
TenOC
Nomad
Nov 03, 2023
I would keep them plugged to shore power so that they are fully charged. I think (?) SULFATING only happen if less than fully charged and high temp
KD4UPL
Explorer II
Nov 03, 2023
Turn off your battety disconnect and just leave the batteries in the MH. No nred for a charger as there is no discharge. If they won't hold a charge all winter disconnected they need replacing.
midnightsadie
Explorer II
Nov 03, 2023
my rv sit,s in a pole bldg coach plugged in eng battery on a tender,do nothing with coach batteries. meter says 13.3 thats ok with me.
way2roll
Navigator III
Nov 03, 2023
I always brought my batteries in the garage on shelf with a trickle charger in the winter if I wasn't going to be using it for a while. An ounce of prevention...
- Cybergrunt
  Nomad
  Nov 24, 2023
  Same here. RV and mower batteries spend the winter lined up on garage work bench, all get several hours of trickle charge once a month.

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batteries in the winter

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