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jamesu

Camano Island, WA

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Posted: 11/07/19 05:59am Link  |  Quote  |  Print  |  Notify Moderator

Over the years I have taken out my TT batteries and hooked them to a trickle charger in my garage during each winter. I now have the TT under covered storage at a local storage yard which has electric plug ins. Related to my TT battery’s winterization, am I good just plugging in the TT? Will this keep the battery warm/charged? Or should I remove the battery and trickle charge it in my garage?

My storage facility is open-sided, covered storage so there is no heat, just an electric plug in next to my TT. I can count on a few decent freezes in December/January here in W. Washington. Other than this battery question, my TT is stowed and winterized.


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Lynnmor

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Posted: 11/07/19 06:39am Link  |  Quote  |  Print  |  Notify Moderator

Instead of powering up the converter and any parasitic loads, I disconnect the battery and use a Battery Tender for a few days a month. It could be left on indefinitely, but I have other uses for it. With the trailer plugged in it is exposed to any electrical glitches in the power system. Cold will not harm a fully charged battery, in fact cooler temperatures are better for it.

* This post was edited 11/07/19 01:57pm by Lynnmor *





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Posted: 11/07/19 06:47am Link  |  Quote  |  Print  |  Notify Moderator

Ideally any charger should be temperature compensated but most aren't.


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GrandpaKip

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Posted: 11/07/19 08:08am Link  |  Quote  |  Print  |  Notify Moderator

Our camper is plugged in continually when at home. Never had any problems with batteries.


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rbpru

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Posted: 11/07/19 08:12am Link  |  Quote  |  Print  |  Notify Moderator

I have left the TT plugged in all winter, checking the battery water level, I have disconnected the battery and charged it periodically on the TT. However, the easiest way for me is to charge it and leave it in the laundry room in a plastic tub.

It is convenient to check but only sits for 3-4 months so it rarely looses much charge.


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opnspaces

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Posted: 11/07/19 08:26am Link  |  Quote  |  Print  |  Notify Moderator

If the battery is fully charged it will be fine to sit on the trailer all winter disconnected. If you still want to charge it I would plug disconnect it from the trailer and plug the tender into it.


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pianotuna

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Posted: 11/07/19 11:40am Link  |  Quote  |  Print  |  Notify Moderator

so long as battery is fully charged and disconnected the colder it is the better for the battery.


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profdant139

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Posted: 11/07/19 01:18pm Link  |  Quote  |  Print  |  Notify Moderator

So I am going to display my ignorance, once again -- I had thought that if a battery is left disconnected, it will discharge about one percent per day. And after a couple of months, that discharge could shorten the battery's useful life.

Is that not true? Because if a battery can be charged, disconnected, and left alone for a long time with no damage, I am wasting electricity. I store mine in my garage (which never freezes) and keep it on one of those Battery Minder Plus gizmos.


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garym114

Bluff Dale, Texas

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Posted: 11/07/19 01:24pm Link  |  Quote  |  Print  |  Notify Moderator

Lynnmor wrote:

Instead of powering up the converter and any parasitic loads, I disconnect the battery and use a Battery Tender for a few days a month. It could be left on indefinitely, bit I have other uses for it. With the trailer plugged in it is exposed to any electrical glitches in the power system. Cold will not harm a fully charged battery, in fact cooler temperatures are better for it.


Best advice
The lower the temperature the lower the self discharge rate.
You really don't need a tender on a disconnected battery but you can connect one periodically if it makes you feel good.


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Lynnmor

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Posted: 11/07/19 01:56pm Link  |  Quote  |  Print  |  Notify Moderator

Keep in mind that some trailers have a "disconnect" switch that doesn't completely disconnect everything. If you don't know for a fact that everything is disconnected, take off a battery cable.

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