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MrMax

Minnesota

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Posted: 10/30/20 07:11pm Link  |  Quote  |  Print  |  Notify Moderator

I’m a new owner of a beautiful 32-foot Winnebago Access, and I just removed my chassis and deep cycle batteries when I put the RV into storage for the winter.

Does anyone have any recommendations for battery maintenance over the winter? Specifically, what kind of battery charger/maintainer would anyone recommend purchasing?

Lwiddis

South of Lone Pine, California

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Posted: 10/30/20 07:40pm Link  |  Quote  |  Print  |  Notify Moderator

Harbor Freight’s maintainer works well for me.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watt solar-parallel & MPPT, Trojan T-125s. TALL flag pole. Prefer USFS, COE, BLM, NPS, TVA, state & county camps. Bicyclist! 14 year Army vet-11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad


time2roll

Southern California

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Posted: 10/30/20 08:14pm Link  |  Quote  |  Print  |  Notify Moderator

I recommend getting 5 to 10 amps so that you can use it for actual recharging and possibly had it as a back up charging system in the RV.

https://www.batterytender.com/Battery-Te........R-5A-Power-Tender-Series-High-Efficiency

(shop around or check amazon)

Otherwise a 1 to 2 amp automatic is ok maintaining a charged battery.


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2006 Keystone Springdale 249FWBHLS
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Stepnwolf

Rio Rancho

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Posted: 10/30/20 09:03pm Link  |  Quote  |  Print  |  Notify Moderator

MrMax wrote:

I’m a new owner of a beautiful 32-foot Winnebago Access, and I just removed my chassis and deep cycle batteries when I put the RV into storage for the winter.

Does anyone have any recommendations for battery maintenance over the winter? Specifically, what kind of battery charger/maintainer would anyone recommend purchasing?


Don't store them on a cement or similar floor. If you are putting them in a garage, basement, etc. set them on blocks of wood. Something to do with drain. Maybe an old wive's tale [emoticon]


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gbopp

The Keystone State

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Posted: 10/31/20 05:12am Link  |  Quote  |  Print  |  Notify Moderator

Stepnwolf wrote:

Don't store them on a cement or similar floor. If you are putting them in a garage, basement, etc. set them on blocks of wood. Something to do with drain. Maybe an old wive's tale [emoticon]

It may be an old wive's tale or, a leftover from the early days of car batteries. Storing Batteries on Concrete.

theoldwizard1

SE MI

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Posted: 10/31/20 05:13am Link  |  Quote  |  Print  |  Notify Moderator

First, clean them. Baking soda and water and a good rinse. Second, make sure the water is up to the proper level. Even "maintenance free" battery caps can be carefully removed.

Outside is fine, even in freezing weather. It is not necessary, nor do I recommend it, to keep them on a charger 24/7. Once every week or two bring them up to 100% SOC and they will be fine.

Tom_M

New Hope, MN

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Posted: 10/31/20 08:56am Link  |  Quote  |  Print  |  Notify Moderator

The only time I had a battery freeze on me was when a cheap Harbor Freight maintainer shorted and the battery went dead.

Make sure that water levels are topped off. Fully charge batteries completely then disconnect the negative cable to make sure there is no possibility of current drain. Assuming that your batteries are in good shape they will be okay until spring.


Tom
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2oldman

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Posted: 10/31/20 11:20am Link  |  Quote  |  Print  |  Notify Moderator

Stepnwolf wrote:

Don't store them on a cement or similar floor. If you are putting them in a garage, basement, etc. set them on blocks of wood. Something to do with drain. Maybe an old wive's tale [emoticon]
It is.

Bordercollie

Garden Grove, CA, USA

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Posted: 10/31/20 01:56pm Link  |  Quote  |  Print  |  Notify Moderator

Battery Minder chargers have a desulfation feature that can revive batteries as well as prolong useful life while keeping batteries charged without overcharging.( So it is claimed) Range of chargers for sale on Amazon.

Stepnwolf

Rio Rancho

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Posted: 10/31/20 04:14pm Link  |  Quote  |  Print  |  Notify Moderator

Bordercollie wrote:

Battery Minder chargers have a desulfation feature that can revive batteries as well as prolong useful life while keeping batteries charged without overcharging.( So it is claimed) Range of chargers for sale on Amazon.


When I was growing up, my best friends father sold various lines of equipment for mechanics. He sold a product you squeezed into the battery cells to de-sulfate that. Didn't make the batteries new, but gave them some more life.

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