House battery question

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House battery question

September 21, 2020, 05:16:20 pm

I am having to replace my house batteries, and as I understand it, I am looking for 8D batteries-3 of them. OReily's has a Super Start 8D-2 battery for $219 each. 1100 CCA. Will these work for me? Don't care about dry camping.
Thanks, Mike

Re: House battery question

Reply #1 – September 21, 2020, 05:22:10 pm

They will work, but are not their best choice. Those are wet cell, not deep cycle and require a lot of maintenance and corrode the area with acid fumes. They have an AGM which is much better, see posts on them, which I will probably replace mine with when they fail.

Re: House battery question

Reply #2 – September 21, 2020, 05:39:21 pm

We replaced our 2 with 2 batterys from Lithium pros in Indiana,$800 each but 10 year warr and 27 lbs.

Re: House battery question

Reply #3 – September 21, 2020, 05:44:54 pm

You might want to check out installing 2 or 4 - L16 - 6 volts instead of the 3 8D batteries.

Re: House battery question

Reply #4 – September 21, 2020, 05:45:02 pm

Yuo, better choice, https://www.oreillyauto.com/detail/b/fleet---heavy-duty-5000/agriculture-hd-parts---accessories-19818/fleet---heavy-duty-20088/battery---electrical-20106/agriculture-hd---batteries---accessories-19802/fbaa0ce66430/super-start-fleet-heavy-duty-battery-group-size-8d/agm8d/4742645

These only have a 1 year warranty.

Four Full River L16 sized DC400-6 will have 830 amp hrs capacity and at least a 2 year warranty (up to seven in some cases) fit in less space one one level and weight less than 3 8Ds on two levels,
DC400-6 | Fullriver Battery

The DC335-6 have the same footprint but are shorter. 4 gives you 670 anp hrs capacity,
DC335-6 | Fullriver Battery

Re: House battery question

Reply #5 – September 21, 2020, 05:58:26 pm

REALITY: If no dry camping, you don't need the amp-hrs of THREE 8D batteries.

The capacity of two is ample. Whether in 8D or similar amp-hr capacity in golf cart/6 VDC deep cycle batteries.

Would suggest considering that amp-hr capacity in AGM golf cart/6 VDC batteries!

Re: House battery question

Reply #6 – September 21, 2020, 06:17:44 pm

Your battery compartment may not be vented well enough for flooded cell batteries.

Cycle life is shorter with 2 batteries, you would tend to use a higher percentage each day than if you had three.

Re: House battery question

Reply #7 – September 21, 2020, 07:02:19 pm

Why do Ineed deep cycle batteries? Will the Oriely battery work?
Mike

Re: House battery question

Reply #8 – September 21, 2020, 07:48:39 pm

Quote from: Yetch – September 21, 2020, 07:02:19 pm

Why do Ineed deep cycle batteries? Will the Oriely battery work?
Mike

Not like Foretravel intended house batteries to work. You need deep cycle batteries, either conventional lead acid deep cycle or AGM deep cycle. Your O'Reily batteries won't last nearly as long. Spend a few more $$. Read up on it!

Pierce

Re: House battery question

Reply #9 – September 21, 2020, 08:06:05 pm

Well, actually it more than a few dollars: More like twice as much. Not really looking for more than 3 years or so of service. What I need is my electrical system to be functioning properly.
Mike

Re: House battery question

Reply #10 – September 21, 2020, 08:19:57 pm

If you are not going to dry camp then just buy 2 of the AGM's as Brett suggested. The start batteries for $219. are not made to do anything but start an engine.

Re: House battery question

Reply #11 – September 21, 2020, 08:25:15 pm

And they create a lot of corrosion.

Re: House battery question

Reply #12 – September 21, 2020, 08:34:20 pm

Ok, I'm now looking at the 8D agm, but it still mentions 1400 CCA, and not deep cycle. Does it have to be a deep cycle battery, or will the 8D agm work?
Thanks, Mike

Re: House battery question

Reply #13 – September 21, 2020, 08:56:31 pm

Quote from: Yetch – September 21, 2020, 08:34:20 pm

Ok, I'm now looking at the 8D agm, but it still mentions 1400 CCA, and not deep cycle. Does it have to be a deep cycle battery, or will the 8D agm work?
Thanks, Mike

Get the deep cycle version. Just because it says 1400 CCA, does not mean it's intended for house battery use. Sounds like you are looking for validation for using a non-deep cycle battery in a application it's not designed for.

It's your $$ but my opinion that you are considering the wrong type battery.

Pierce

Re: House battery question

Reply #14 – September 21, 2020, 09:07:30 pm

This is the one you need.

https://www.oreillyauto.com/detail/b/fleet---heavy-duty-5000/marine---boat-30733/deep-cycle---marine-batteries-17354/409e0a64fe51/super-start-fleet-heavy-duty-battery-group-size-8d/agm8dt975/4742647?q=deep+cycle+8d&pos=5

Re: House battery question

Reply #15 – September 21, 2020, 09:16:50 pm

That is the one I'm looking at, but there is no mention of it being deep cycle. And yes you are right about trying to justify my reasoning and go the el cheapo route. There is quite a bit of difference in prices. If these would work, I could go for two instead of the 3 battery setup that I have now.
Mike

Re: House battery question

Reply #16 – September 21, 2020, 09:25:52 pm

Quote from: Yetch – September 21, 2020, 07:02:19 pm

Why do Ineed deep cycle batteries? Will the Oriely battery work?
Mike

Question #1 Starting, Lighting and Ignition batteries, which is what you have when you say that it can deliver current at the rate of 1400 amperes, do not last long in a charge - discharge - charge use.

Question #2 Yes, the O'Reilly's battery will work.

Will you be happy? Maybe, maybe not. You can spend less money going in, yet have a higher lifetime cost because of short battery life.

The others here know better than I whether you need one or two BCI Group 8D batteries to safely start you engine. And those need to be SLI style batteries, and they will last doing what they are intended to to unless you have a habit of leaving the headlights on.

For the house battery you could install a group 27 AGM battery and be content as long as you never use that battery for power, always using shore power or your generator set. FWIW the off-brand dealer from whom we purchased our home, sent my partner off with a group 24 to start the engine and a slightly larger AGM for the house. For the time being I have installed a pair of 4D flooded cell batteries with plans to replace them before serious travel with three 8D. I am lusting after Trojan for the house batteries because with their ability to deliver 100A of current they are true deep cycle batteries. But for now, the house runs off shore power so house battery needs apply only to the occasional day trip and power outages.

There is no return on investment for an RV. Owning and operating an RV is an expense. At least an RV won't sink if you choose to ignore it for a while.

Re: House battery question

Reply #17 – September 21, 2020, 09:36:37 pm

Here is the question Mike wants an answer to, "...but there is no mention of it being deep cycle." MIKE LOOK HERE AT ATTACHMENT>>>DEEP CYCLE
This is from the Link above.

Re: House battery question

Reply #18 – September 21, 2020, 09:41:07 pm

As a former resident of the burn ward do not put flooded cell batteries in a non vented location.

Your nickel

Re: House battery question

Reply #19 – September 21, 2020, 09:50:22 pm

Did they have agm batteries back in 1997? What did they use back then?
Mike

Re: House battery question

Reply #20 – September 21, 2020, 10:21:08 pm

Quote from: Yetch – September 21, 2020, 09:50:22 pm

Did they have agm batteries back in 1997? What did they use back then?
Mike

AGM batteris were in use starting in 1980 so have been around a long time. Your coach had GEL batteries in 1997. See Foretravel specs at: Media [ForeForums Foretravel Motorcoach Wiki]

Pierce

Re: House battery question

Reply #21 – September 21, 2020, 11:02:20 pm

Well, thanks for that info.
Mike

Re: House battery question

Reply #22 – September 22, 2020, 01:31:27 am

Every uni made comes/came with mk gels to this day.

Re: House battery question

Reply #23 – September 22, 2020, 11:51:12 am

After 15 years of using lead/acid golf cart batteries for the house, I am looking at my options.
Being a full time off the grid type RV'er with solar power makes a difference compared to someone who does no dry camping.
I have a battery watering system which makes watering the batteries relatively easy but it still needs to be done regularly and as I get older I am debating whether to spend the extra $400 for the AGMs that craneman pointed to.
Then, of course, now there's lithium. I'd love to make that switch but I think they are out of my price range.

Re: House battery question

Reply #24 – September 22, 2020, 12:07:19 pm

I keep hoping that the lithium price will come down before my Lifeline AGM's die. Seems like they are almost "fair traded" all the companies keep the price close to each other. Usually when technology develops, a few years later the price drops. I paid $1,100.00 for a beta video recorder when they first came out then paid the same amount of money a year later for a VHS recorder and tapes were $11.00 on sale. The lithium have been out long enough to at least drop down some.

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