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Mammoth501

East Kootenay BC

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Posted: 01/28/22 04:38am Link  |  Quote  |  Print  |  Notify Moderator

So the camper is winterized and parked but I left the batteries hocked up and the camper plugged in to shore power to keep them charged. I just upgraded to two 6v golf cart batteries and boy are they a pain to install in a northern lite. The weather was supposed to be staying decent but now it’ll be going down to -20c/-4f for a few days. There is no real draw on them besides the LP detector and the charge controller, little things like that. My question is, will they freeze or is it bad for them in any way if I left them in there.

mkirsch

Rochester, NY

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Posted: 01/28/22 06:58am Link  |  Quote  |  Print  |  Notify Moderator

Batteries will not freeze if they contain a charge. It's when they go dead that they freeze.

As long as you don't lose converter power for an extended period of time during the extreme cold, as in days/weeks given the power draw, they will be fine.


Putting 10-ply tires on half ton trucks since aught-four.

ReneeG

Meridian, Idaho

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Posted: 01/28/22 08:39am Link  |  Quote  |  Print  |  Notify Moderator

Agree with mkirsch. We keep our four 6 volt deep cycle in our FW all winter with temps sometimes that low for a few days, but the FW is plugged in. We check them frequently and refill as needed.


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pianotuna

Regina, SK, Canada

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Posted: 01/28/22 08:48am Link  |  Quote  |  Print  |  Notify Moderator

rate of self discharge becomes lower as temperatures drop.

I would disconnect the negative post.

next choice would be a trickle charger on a timer set for 1 hour a day

next choice would be the converter--on a timer set for 1 hour a day.

best choice is a solar charging system with a trik-l-start to maintain the chassis battery


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Grit dog

Black Diamond, WA

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Posted: 01/28/22 09:10am Link  |  Quote  |  Print  |  Notify Moderator

My only concern would be if your converter is overcharging them.
Not saying it is, just something to watch out for if you're not certain you have a converter that reliably goes into float or maintenance mode.

Otherwise, they won't freeze. Just like your car batteries.


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ticki2

NH

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Posted: 01/28/22 09:16am Link  |  Quote  |  Print  |  Notify Moderator

I also have twin 6v deep cycles and subzero temps . I have a 3 stage converter/ charger and use a weekly timer on the charger set for one day a week . This seems to work just fine as the state of charge never falls below 85 percent with a small 20w load for the battery monitor . You didn’t mention what charger you have . The first winter , before the timer , the charger ran continuously and that worked too .


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Lwiddis

Cambria, California area

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Posted: 01/28/22 09:31am Link  |  Quote  |  Print  |  Notify Moderator

Keep your wet batteries charged and they will not freeze.


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Sandia Man

Rio Rancho, NM

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Posted: 01/28/22 10:50am Link  |  Quote  |  Print  |  Notify Moderator

You can go either way as a charged battery will not freeze at temps posted, we store our rigs in our side yard and they are plugged in except when out RVing. We have smart converter or multiphase inverter charger on our rigs and they keep battery bank happy without over-charging.

Mammoth501

East Kootenay BC

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Posted: 01/28/22 10:54am Link  |  Quote  |  Print  |  Notify Moderator

ReneeG wrote:

Agree with mkirsch. We keep our four 6 volt deep cycle in our FW all winter with temps sometimes that low for a few days, but the FW is plugged in. We check them frequently and refill as needed.


Thanks for all your advice! I just bought them a week ago, I shouldn't have to check the fluids in them for a few months right? I mean they should come properly filled from the store since they're brand new (probably should've checked them before installing them though). The Northern Lites come with the GO Power GP-PWM-30-SB charge controller which is a 4 stage and from my understanding, it goes into float once the batteries are fully charged and equalizes them once a month. I also have 400 watts of solar on the roof in case the power goes out for some reason.

ReneeG

Meridian, Idaho

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Posted: 01/28/22 11:22am Link  |  Quote  |  Print  |  Notify Moderator

Mammoth501 wrote:

ReneeG wrote:

Agree with mkirsch. We keep our four 6 volt deep cycle in our FW all winter with temps sometimes that low for a few days, but the FW is plugged in. We check them frequently and refill as needed.


Thanks for all your advice! I just bought them a week ago, I shouldn't have to check the fluids in them for a few months right? I mean they should come properly filled from the store since they're brand new (probably should've checked them before installing them though). The Northern Lites come with the GO Power GP-PWM-30-SB charge controller which is a 4 stage and from my understanding, it goes into float once the batteries are fully charged and equalizes them once a month. I also have 400 watts of solar on the roof in case the power goes out for some reason.


They should be ok, but . . . it never hurts to check.

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