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 > Golf Cart or A G M 12 volt Batteries

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wa8yxm

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Posted: 01/08/18 08:38am Link  |  Quote  |  Print  |  Notify Moderator

Chassis batteries are Starting Type. does not matter if Flooded wet, Maintenance Free or AGM.. They need to provide a lot of peak amps (As compared to capacity) for a short time

HOUSE you need a lot of capacity (AMP-HOURS) as opposed to peak amps.

Now folks claim all sorts of advantages for AGM.. With one and possibly 2 exceptions I have not found those claims to be valid. The exceptions:

1: No "This side up" sticker.. You can mount them on their side, on end, however you wish.

2: Very very low gasing (If you are using them INSIDE the living area)

In the specific case of LIFELINE AGM (not other brands) Faster recharge IF and only IF you have a converter or other charger able to ship the amps (Most do not).

And they have one big di$advantage.. CO$T.. Way more expensive

Thus for the house I recommend GC-2's


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Posted: 01/08/18 09:56am Link  |  Quote  |  Print  |  Notify Moderator

Your post begs a question. Your coach has two battery banks. You will have two TWELVE VDC batteries that start the coach. Your house system will have anywhere from 4-6 SIX VDC batteries. DO NOT CONFUSE THE TWO. You asked which you should buy, AGM or Golf Cart. AGM batteries come in both 12VDC and 6VDC configurations. AGMs are way more expensive but they are maintenance free and as pointed out, can be mounted any way you choose. GC2, Golf car batteries, 6VDC have to be mounted with caps up and need to be checked periodically to ensure the water levels are correct. Personally, I bought mine at Sams Club for about $100ea. I put a teaspoon of mineral oil in each one and found I've never needed to top them off....Dennis


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Posted: 01/08/18 05:51pm Link  |  Quote  |  Print  |  Notify Moderator

They do make 6V AGM golf cart batteries ((Trojan T105-AGM) and 12V AGM golf cart batteries ((Trojan T1275-AGM)

Both are more expensive than conventional flooded (wet) cell golf cart batteries. Two 6V golf cart batteries will always store more energy than on 12V golf cart battery.


A quick and dirty way to compare battery capacities is just check their weight. Two 6V golf cart batteries weights about 140 lbs. One 12V golf cart battery weights about 81 lbs.

wolfe10

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Posted: 01/09/18 07:52am Link  |  Quote  |  Print  |  Notify Moderator

Yup, better to separate this into several questions:

Start vs Deep cycle

Battery technology (wet vs AGM)

6 VDC wired in series vs 12 VDC


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Posted: 01/10/18 06:07am Link  |  Quote  |  Print  |  Notify Moderator

2 6 volt golf cart batteries connected in series will give you about 210 AH and cost about $170. 2 12 volt AGM's connected in parallel will give about the same AH and cost about $600.
AGM's are maintenance free, golf cart batteries are not.

I'm switching my house batts from AGM's to golf cart batts.


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Posted: 01/10/18 06:48am Link  |  Quote  |  Print  |  Notify Moderator

timjet wrote:

2 12 volt AGM's connected in parallel will give about the same AH and cost about $600.


No doubt AGMs will cost more; they ARE better.

That's the price my RV dealer tried to give me......from NAPA.

Found the same batteries from an independent battery dealer at $400 a pair. Quite a difference.


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Posted: 01/10/18 05:30pm Link  |  Quote  |  Print  |  Notify Moderator

timjet wrote:

2 6 volt golf cart batteries connected in series will give you about 210 AH and cost about $170. 2 12 volt AGM's connected in parallel will give about the same AH and cost about $600.
AGM's are maintenance free, golf cart batteries are not.

I'm switching my house batts from AGM's to golf cart batts.


What maintenance?

I put a little mineral oil in each cell in my batteries 3 years ago when I bought them, the levels are still at the same level today.

It’s plugged in 24/7/365 when not on the road.

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Posted: 01/10/18 06:14pm Link  |  Quote  |  Print  |  Notify Moderator

I might try that. I'll give it a couple of months and see how much water I have to add. I've got a smart 4 stage charger.

Smitty77

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Posted: 01/10/18 09:57pm Link  |  Quote  |  Print  |  Notify Moderator

OP - Thanks for serving - twice!!!

No right or wrong answer here, just options[emoticon]!

If you do not feel you'll be off Shore Power much of the time, say 20-30% or less as an example. And are frugal on power usage, the you could start out with two four batteries to start. See how things go. As mentioned by others, wet cell batteries, GC2 6V, larger 12V, with a dab of mineral oil or a watering system where you just easily squeeze a turkey baster ball to top off all cells - would be an inexpensive way to go. If you want the added safety of having more reserve power, you could go with 6 batteries to start with and be done with it.

-Three pairs of Sams or Costco 6V wet cells would be the economic way to go
-Bump up price some to a Trojan or Crown battery, and you should see a bit more overall AH's in the bank, and a potentially a longer lasting battery
-Bump up to larger size (Taller, but same footprint, and you again add to the price and also to the total AH's in the bank. For example, if you have the head room in the battery bay, Trojan have the T-125's and T-145's, which add AH's tp their conventional GC2 T-105 battery

-If you don't want to bother with any maintenance concerns at all, and don't mind spending some more money. You could go to AGM.As mentioned, in the 6V GC2 config. Or you could go to 12V 8D's, and probably get three into the same space that X's 6 GC2's will fit. The do charge a bit faster, so if you do start boon docking more, you will have faster recharge times via generator with AGM's.

So, really you're in the driver's seat. And if your batteries are say midlife, you might look into conditioning/equalizing them, and then having the load tested, to see if they still have some life ahead for you. If so, then you could go get some usage with the coach, and see what you feel your battery energy needs are. This could help you make your decision between all of the options.

Can be a PITA, with lost of opinions on Wet vs AGM vs now Lithium[emoticon]! And this gang, myself included, are more then willing to help you spend your money[emoticon]!

Best of luck to you,
Smitty

AlaskaShooter

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Posted: 01/11/18 02:41am Link  |  Quote  |  Print  |  Notify Moderator

Another option to consider if you have heavily fertilized and watered your orchard of money trees. New battery technology. Prices will hopefully drop over time.

https://battlebornbatteries.com/

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