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 > Best house battery?

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drumz

Pa.

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Posted: 08/01/20 11:51am Link  |  Quote  |  Print  |  Notify Moderator

Hi guys.
I'm sure this discussion is somewhere on here, I can't seem to find it.
Anyway my house battery has died. It was a Lifeline AGM deep cycle. These batteries are pricey and heavy! Someone told me that I don't really need an AGM battery, that a good quality deep cycle is cheaper,lighter and will actually hold a better charge.
I did some research and found that AGM batteries are better for vibration resistance, but really your engine battery takes the same amount of shakes and bumps that the house battery would right?
So what are your thoughts? Pay the extra for a AGM, or just go with a top of the line deep cycle?
Jerry, Penna.

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The Western States

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Posted: 08/01/20 12:05pm Link  |  Quote  |  Print  |  Notify Moderator

GC vs AGM are just about the same.

Cost: AGM does cost more but last longer, my Lifelines are 9 years old. For a few years use and sell the rig then GCs are cheaper.

Same amount of lead and weight.

Charge the same, slight voltage difference.

Vibration not a issue.

AGMs also don't vent or use water. So less corossion and maintenance than GCs. Some have put AGMs inside.

OK if a AGM does vent then it has a dead cell or was over charged and in any event it's now toast.

For reference: My Jeep has a AGM under the passenger seat and the carpeted cover is NOT sealed. The vents are enclosed in a pastic shell that that is part of the manufacturing process and covers the vents only. It has a 1/4" tube to vent under the car. It's 6 years old.

* This post was edited 08/01/20 12:12pm by CA Traveler *


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Bob


Lwiddis

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Posted: 08/01/20 12:12pm Link  |  Quote  |  Print  |  Notify Moderator

What is your average daily amp hour use? Do you recharge fully each day? Will you regularly maintain the battery?


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time2roll

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Posted: 08/01/20 12:21pm Link  |  Quote  |  Print  |  Notify Moderator

Lifeline is actually one of the best quality AGM.

If you want value, a pair of GC2 from Sam's Club Costco are excellent.

Best at any price would be lithium.

Maybe it is time to review your charging, usage, and storage habits if the Lifeline did not last at least 8 years.


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KD4UPL

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Posted: 08/01/20 01:10pm Link  |  Quote  |  Print  |  Notify Moderator

Lifeline AGM batteries are excellent. I've installed a lot of them in off grid homes and cabins over the years. There's no issues selecting one if you need AGM. Deka are really good too.
Do you need an AGM? If your battery is located inside a living compartment or isn't otherwise vented to the outside then you do. I typically just use a flooded battery like a golf cart or larger size but then I don't mind checking the water and adding if needed. They are cheaper than an AGM. If you don't want to check your batteries or worry about adding water then go with an AGM.

2oldman

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Posted: 08/01/20 01:51pm Link  |  Quote  |  Print  |  Notify Moderator

If you never dry camp, any battery will do.

Gjac

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Posted: 08/01/20 02:11pm Link  |  Quote  |  Print  |  Notify Moderator

I don’t think the average rver can go wrong with he Sams Club 6v GC batteries. Mine are now 13 years old and still working fine. I dry camp 95% of the time but don’t watch tv or internet usage (minimal electrical reqs). If you don’t mine proper maintenance and adding water they will serve you well at a much lower cost. If you don’t want to be bothered with maintenance the AGM might be a better choice.

MDKMDK

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Posted: 08/01/20 02:52pm Link  |  Quote  |  Print  |  Notify Moderator

LiFePO4. They're now down to only about twice the cost of a top end AGM, if you're going that route. It will probably outlast your motorhome/RV. Do an internet search on lithium versus FLA, and there are more than a few videos that compare and contrast them.


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bobndot

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Posted: 08/01/20 03:05pm Link  |  Quote  |  Print  |  Notify Moderator

The 6v batts might be a little taller make sure you have room.


If you accidently deplete an AGM below 50% it might be more forgiving once its charged back up but I have found in the 12v models, that AGM and wet cells were both fine for my off grid camping needs.

What I do is carry a third 12v AGM battery that I run my 150w inverter off of when needed. I store it inside my toad and use it inside the rv on the floor out of the way.
That battery is charged with my solar system or my genny off a separate smart charger that accepts agm charging rates.
I use that for my 12v 40" tv that draws 5 amps [emoticon].
That battery also operates my Dish Network recvr. off the little inverter. Doing it that way saves the coach bank for my stereo system , lighting, furnace if I should need it and vent fans.

drumz

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Posted: 08/01/20 03:05pm Link  |  Quote  |  Print  |  Notify Moderator

Well we don't use the motorhome that much. We vend at festivals, so we boondock alot. Sometimes we get electrical hook ups, it's rare though. The battery compartment is under the unit. And I guess I would rather not mess with checking water and stuff.I think the smoke/propane alarm runs down the battery, cause it's always dead after a few weeks of sitting. We don't leave the rv plugged in, as thats how our old rv caught on fire.
Isn't there a maint free deep cycle?

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