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Old 07-28-2014, 11:06 PM   #1
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Any experience with Exide 8D deep cycle batteries?

Hey all,
I am considering new Exide 8D deep cycle batts for my house bank.
They're $249 each, weigh 120 lbs a piece and claim 200 ah's .

Any experience with these batteries would be appreciated!

Thank you,

Taras
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Old 07-29-2014, 01:12 AM   #2
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What do you have now for engine start and house bank?
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Old 07-29-2014, 06:30 AM   #3
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Price Trojan , might be far cheaper per KW.
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Old 07-29-2014, 06:51 AM   #4
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Might consider 6V golf cart batteries...
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Old 07-29-2014, 07:45 AM   #5
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Exides are fine. If it is easy for you to take it out and install, go for it. Two GC's will gain you only about 10-20 more amp hours and require some new wiring to create a series connection, and perhaps a longer one of your current cables if they are tight to the terminals on an 8D; in most cases GC are easier to manhandle being half the physical size. Good ones such as Trojans, will cost about the same as that Exide for the pair.
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Old 07-29-2014, 07:46 AM   #6
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Might consider 6V golf cart batteries...


But no might in my book...6V Golf for house batts...the only reason in my book to have 8Ds is you need that big of a starting batt for a good sized diesel.

At least for wet lead acid.
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Old 07-29-2014, 10:32 AM   #7
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Battery Trojan T 125 6V 240 AH 20 Hrs Deep Cycle Each | eBay

I have six of these. Two of them out perform the 8D and are easier to install single handed. This is my choice.
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Old 07-29-2014, 11:02 AM   #8
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I do prefer golf cart batts BUT remember there are losses from multiple batts, besides more connections to service. .

The case for 2 batts means less lead , so less power in the same space.

Also if one batt dies in a string , it will usually cause the loss of the other batts.

The dead one requires constant charge , which boils out the water in the others, on solar or shore power.

An 8D my be a monster to move , but it does have advantages over golf carts for house or 31s for start service.

Every 6 years by some beer for the dock apes.
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Old 07-29-2014, 02:57 PM   #9
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Originally Posted by Taras View Post
Hey all,
I am considering new Exide 8D deep cycle batts for my house bank.
They're $249 each, weigh 120 lbs a piece and claim 200 ah's .

Any experience with these batteries would be appreciated!

Thank you,

Taras
120 lbs is lite for an 8D. The ones I have pulled were 160 - 170 lbs. That may be why the rating is 200 amp-hrs and not 220 -235 amp-hrs, less lead??
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Old 07-29-2014, 10:53 PM   #10
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I do appreciate the replies!
What I have now is Rolls... 3 batteries of 4 volts each. They weigh 267 lbs each. They are fantastic batteries and have lasted 14 yrs but just too expensive to replace at $1500.00 per battery ($4500.00).
Any other suggestions other than the Exide batts I am considering would be greatly appreciated.
Thank you.
Taras
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Old 07-29-2014, 11:02 PM   #11
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Exide batteries, including 8Ds are retailed here by(amongst others) Whitworths, the largest chandlery chain in Australia. I don`t have them, I have Century/Yuasa 8Ds, but I`ve not heard anything negative, and Whitworths are unlikely to continue selling batteries that come back with complaints.
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Old 07-29-2014, 11:22 PM   #12
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Every 6 years by some beer for the dock apes.

Good advice for young neighbors too. Young kids down the street love working on vehicles and generally hang out in the garage and have a good time. For several years I drop a 30 pack of Bud light off monthly, their beverage of choice.

I haven't lifted a heavy object in years as I've got an unlimited supply of young willing help.
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Old 07-30-2014, 01:46 AM   #13
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Originally Posted by caltexflanc View Post
...Two GC's will gain you only about 10-20 more amp hours and require some new wiring to create a series connection, and perhaps a longer one of your current cables if they are tight to the terminals on an 8D; in most cases GC are easier to manhandle being half the physical size. Good ones such as Trojans, will cost about the same as that Exide for the pair.
Golf Cart 6V batteries are actually 1/3 the size of an 8D battery. I replaced 2 8D batteries with 225 AH rating each for 6 Golf Cart 6V batteries with 220AH per set of 2 6V batteries. I went from a 450AH bank to a 660AH bank within the exact same footprint. That's a 210AH or 46.7% increase in capacity in the same battery boxes.
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Old 07-30-2014, 07:59 AM   #14
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120lb is kind of lightweight for an 8D battery. Not sure what my Rolls 8Ds weigh but the Fullriver 8D AGMs weigh in at 200lb. I believe that the difference reflects the mass of lead in the battery. More lead is better but also higher cost. Considering what a PIA it is to install 8Ds I would go for heavier, more expensive batteries likely to have longer life and able to handle greater number of discharge cycles. Discharge cycle life is an important consideration in addition to Amphr capacity
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Old 07-30-2014, 03:07 PM   #15
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8D's love'em, and hate'em. We had to replace 9 8D's and 1 4D @ 256lbs a piece they were no fun to change.Click image for larger version

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Old 07-30-2014, 03:11 PM   #16
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Quote:
Originally Posted by Taras View Post
I do appreciate the replies!
What I have now is Rolls... 3 batteries of 4 volts each. They weigh 267 lbs each. They are fantastic batteries and have lasted 14 yrs but just too expensive to replace at $1500.00 per battery ($4500.00).
Any other suggestions other than the Exide batts I am considering would be greatly appreciated.
Thank you.
Taras
So what are the dimensions, including height, of the available space in the existing box or boxes? Any pics? Budget?
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Old 07-30-2014, 03:17 PM   #17
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I take it you have these bad boys?

http://rollsbattery.com/public/specsheets/4KS21P.pdf

If so, you obviously have the height available. You are replacing a 1100ah bank. Have you calculated what you need capacity wise?
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Old 07-30-2014, 04:11 PM   #18
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I just don't get 8ds. For starters, they have the same rating as Group 31s, sometimes less. They don't last any longer than Group 31s and they are a bugger to manhandle around. Why do people replace them, unless it's a fitting issue? It seems to me they are antiquated technology that are superseded by the better, smaller size batteries that last as long and cost less and save you a case of beer each month. Maybe they are engineered to survive the vibration in a truck? I don't get it. I put in 2 Costco 31s (2000 CCA) in the same space as one 8d, saved about $100 and could move them about just fine. Needed two small cables to connect them. They start the 6CTA, which Cummins specs 1800 CCA for, just fine.

Can someone explain to me why 8ds?
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Old 07-30-2014, 04:23 PM   #19
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Quote:
just don't get 8ds. For starters, they have the same rating as Group 31s, sometimes less.
Huh???? What rating are you talking about? An 8D will typically have twice, or more, the Amp hours of a 31 and 50%-100% more cranking amps. You got that result because you put in two batteries. I will wager that those two 31s together cost more than a single 8D of the same make.
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Old 07-30-2014, 04:59 PM   #20
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I'd take your wager but I have to do all the research! 2 31s fit in an 8d box and cost less than an 8d. You do not get double the power out of an 8d. If you are talking house/deep cycle, golf carts blow away the 8ds.
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