8D Battery

Topic: 8D Battery (Read 3222 times) previous topic - next topic

8D Battery

January 14, 2018, 07:04:34 am

Would these be a good battery for either house or engine looks like a good buy
Deka/MK AGM 8A8D Battery. Two available. Selling for $395.00 ea.

12v, 245Ah@20hrs, 1450 CCA,
Made in USA by East Penn Mfg.
Purchase date: Oct '16.

These were part of a solar system. Used less than 6 months. Service life: 8-10 yrs. Retail for $695 ea.
Application: Solar, Marine, RV, Industrial

Re: 8D Battery

Reply #1 – January 14, 2018, 08:46:15 am

If they load test OK, and aren't physically damaged, and you can pick them up locally (no shipping charges), might be a good deal.

BUT, you can buy the equivalent battery from O'Reilly for about $50 more (each). For that small difference in price, I think I'd rather have new fresh batteries. Plus the parts store guys will swap them out for you. NO LIFTING.

Voltage good one minute: gone the next

Re: 8D Battery

Reply #2 – January 14, 2018, 10:17:44 am

I got three of the O'Reilly AGM 8A8D's new for $350.00 each by having a friend with an O'Reilly account purchase them for me.

Re: 8D Battery

Reply #3 – January 14, 2018, 10:24:02 am

AGM is what I want, Right? So I don't have to mess with filling etc. Trying to get away from battery maintenance somewhat.

Re: 8D Battery

Reply #4 – January 14, 2018, 10:30:48 am

Quote from: stump – January 14, 2018, 10:24:02 am

AGM is what I want, Right? So I don't have to mess with filling etc. Trying to get away from battery maintenance somewhat.

Yes. I'm surprised you don't have an O'Reilly account
Stump...........as an OTR trucker.

Re: 8D Battery

Reply #5 – January 14, 2018, 10:35:20 am

The mk's are extremely well made. As long as they never went dead in use and test ok I think I would be a player myself. I have no knowledge of where o'riellly sourced their AGM's so I have no comparison,

My personal way to try to see would be to see if both batteries weigh exactly the same. If so they may well be both made in the same factory with different labels.

If not the same I would think they were not the same battery.

Any AGM Is a VRLA battery and is a "wet" battery versus gels.

Any "wet" battery can need equalization if improperly charged over a long enough time and the only AGM that can be equalized is the lifeline ones.

Magnum inverters have two AGM settings internally. One for the other AGM'S and the second profile and higher charging voltage Is for lifelines only and that profile allows auto equalization if needed.

Re: 8D Battery

Reply #6 – January 14, 2018, 11:10:56 am

Translation, please.
What does 8A8D signify?

Re: 8D Battery

Reply #7 – January 14, 2018, 11:17:28 am

Quote from: Caflashbob – January 14, 2018, 10:35:20 am

I have no knowledge of where o'riellly sourced their AGM's

East Penn aka Deka.

Re: 8D Battery

Reply #8 – January 14, 2018, 12:18:35 pm

I have a Oreillys account I just have not been pricing batteries I looked at the lifelines the other week then saw these on Craigslist and was wondering if they would be good for RV service, vs the wet cell acid batterys I have now. The wet cells are just more messy and I would like to not have to mess with them as much.

Re: 8D Battery

Reply #9 – January 14, 2018, 12:29:11 pm

Yes, they are as you descibed. I'm happy with mine from O'Reilly but I'm not trying to live off the grid either. At $350.00 per and free installation ........................ you can't beat 'em!

Re: 8D Battery

Reply #10 – January 14, 2018, 12:44:20 pm

Good point about the not living off the grid use. Those who do not travel as much from pedestal to pedestal maybe can better justify the extra money for the double cycle life of the gels?

Re: 8D Battery

Reply #11 – January 14, 2018, 01:57:24 pm

Stump,

O'Reilly normally sells them for about $450 each. I got them for $400 each by buying three of them. And they did all the lifting of removing and reinstalling the new ones. (Although getting into this particular location was not trivial.) Probably not that big of a deal for you with your DW to help!

With an account (?), you may be able to get a better deal. But maybe not a better battery at those kinds of prices.

Good luck,

Trent

Re: 8D Battery

Reply #12 – January 14, 2018, 02:52:50 pm

I've used Penn Deka batteries for 40 years and in my opinion there's none better for common lead acid batteries. I use them in boats, buses, construction equipment, and vehicles. I've no experience with AGMs, but if Penn Deka made'ed I'd buy them.

Wantabe

Re: 8D Battery

Reply #13 – January 14, 2018, 03:18:57 pm

I had Deka AGM 31 series in my last coach for both house and chassis. They lasted 11 years (with smart charger and smart solar charger) before needing replacement.

At the end, a couple started outgassing and overheating. 11 years on them was pretty good in my opiniion.

Re: 8D Battery

Reply #14 – January 14, 2018, 03:26:09 pm

I show my PO bought two Lifeline GPL-8DL house batteries in late 2014 for $627.98 each, (not including installation!).

Re: 8D Battery

Reply #15 – January 14, 2018, 04:18:57 pm

This is the O'Reilly listing for the AGM8D and I believe they give a military discount. Also below is a picture of my three 4 1/2 year old East Penn AGM 8Ds and a picture of the O'Reilly AGM8D. Notice the similarity in the cases, same weight, same cold cranking amps. https://www.oreillyauto.com/search/2004/lexus/gx470?q=agm8d
Specifications for the East Penn/Deka Intimidator AGM 8D SKU   8A8D, Brand East Penn/Deka
Battery Voltage 12 Volt, Cranking Amps 1800 CA, Cold Cranking Amps 1450 CCA, Amp Hour Rate 245 Ah
Reserve Capacity Minutes 480 Minutes, BCI Group Size Group Size 8D, Battery Type   Deep Cycle, AGM (Absorbed Glass Mat)
Dimensions   Length 20-3/4", Width 11", Height 10", Weight 161 Lbs Warranty   12 Months

Re: 8D Battery

Reply #16 – January 14, 2018, 07:18:48 pm

Penn AGM's seem to a very good value. The extra 60 amp hours for 3 versus gels gives an additional 30 amp hours per cycle especially if drawing them down a lot. Being as they are not capable of being equalized I would be extremely vigilant on correctly charging them for temp and charge rate to lessen any chance of reduced capacity. Including any solar input.

The more expensive lifelines are supposed to take a charge faster per their web site and are capable of being equalized as long as you have a charger made to equalize them specifically.

Both are "wet" batteries and if mischarged can release gases hence the Valve Regulated description. Would make sure they are in a vented location in event of a gas release.

Re: 8D Battery

Reply #17 – January 14, 2018, 07:58:04 pm

Another choice.

Fullriver Battery DC260-12 Product Information
http://resources.fullriverbattery.com/fullriver-battery/spec-sheets/DC260-12.pdf

FullRiver 8D batteries are 260 amp hrs at 20 hrs. They are sealed, spillproof, non-hazardous.

Re: 8D Battery

Reply #18 – January 14, 2018, 08:06:28 pm

Bob, why do you call AGM batteries a wet battery.

Re: 8D Battery

Reply #19 – January 14, 2018, 09:06:34 pm

AGM's are wet but not flooded.

Re: 8D Battery

Reply #20 – January 14, 2018, 10:34:14 pm

That's why. Flooded cell and AGM are considered "wet" batteries. Similar chemistry it see seems. That's probably why Foretravel equipped every unicoach ever made with updated non "wet" gel batteries. Different chemistry. Hard to get to vent. Can be enclosed totally. Double cycle life. No equalization. Top of the line stuff in a $400k coach new

Re: 8D Battery

Reply #21 – January 15, 2018, 12:30:24 pm

This wont add to the thread but I removed 3 wet 8 D's from my rig. Me personally will not have another wet battery in my bay because of the gassing and accumalating corrosion as mush as 3 feet from the batteries. They were going to eat down my coach. For those that stay with wet keep a watch for corrosion on metal far beyond the battery terminals.

Re: 8D Battery

Reply #22 – January 15, 2018, 01:04:27 pm

"Another choice.

Fullriver Battery DC260-12 Product Information
http://resources.fullriverbattery.com/fullriver-battery/spec-sheets/DC260-12.pdf

FullRiver 8D batteries are 260 amp hrs at 20 hrs. They are sealed, spillproof, non-hazardous."

I just replaced my house batteries with FullRiver 8D's in September. I'll let you know in 6-7 years how they held up. ;-)

Re: 8D Battery

Reply #23 – January 15, 2018, 02:30:02 pm

Here's a pretty good write up:
Battery Types: Flooded versus AGM and Gel

Re: 8D Battery

Reply #24 – January 15, 2018, 07:16:28 pm

I have 4 L16 size Full River DC400 6 volt batteries that take up the same footprint as 2 8Ds and have 830 amp hrs capacity. Five yr warranty in a solar energy installation, two years otherwise.

http://resources.fullriverbattery.com/fullriver-battery/spec-sheets/DC400-6.pdf

Lots of options out there, something for everyone.

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