Changing to Group 31 Batteries

[Fred Mc]

I have a GM PD4106 with 2 8D batteries that need replacing. The coach is a 12 colt system.

Ive read where a number of you have gone with group 31 batteries and I am considering this mainly becasue of the cost although weight is also a factor.

Can you get away with 2 group 31's replacing 2 8D's?

Where did you buy them and what is the cost?

Thanks

Fred Mc.

Edit: I changed the spelling in the subject header to make for easier searching in the database. - Dallas

[Dreamscape]

I got mine at Interstate Batteries, around 60 bucks each.

Paul

[ChuckMC8]

Fred, I have 2 like new 8D's and am close to you. Email me at 14bama@bellsouth.net Chuck

[jjrbus]

 We are not getting away with group 31's. Once you remove the bus air, 8D's are overkill!!! 8D's have a one year warrenty group 31's up to seven years.
Best battery, best deal? I dunno but I buy mine at Walmart, I can get a replacement battey almost anywhere 7 days a week!

[HighTechRedneck]

Best battery, best deal? I dunno but I buy mine at Walmart, I can get a replacement battey almost anywhere 7 days a week!

I couldn't agree more.  I use Wal-Mart batteries in everything now.  They seem to be good quality and of course have an excellent price.  The only time I had one die prematurely, I took my pickup to the nearest Wal-Mart, they worked on it immediately.  They hooked up their tester to verify it was the battery that had the problem and then put a new one in no questions asked.  While the mechanic put the battery in, the clerk pro-rated the warranty and I paid.  Within 15 minutes of pulling in, I was driving away with a new battery under the hood.

[jjrbus]

I buy the tires for my toad at Walmart for the same reason.

[TomC]

I also have a 8V-71 Vdrive that I changed from the 8D starting to two size 31 batteries.  The original batteries were probably around 1200cca.  I use Interstate batteries that have 950cca each that spins the engine just fine.  The difference is 61lbs for the 31 and 132lbs for the 8D.  I do use Lifeline AGM 8D (2) for my house batteries that have 255amp/hr each, that I really like.  Good Luck, TomC

[JackConrad]

    One thing everyone needs to know about WalMart batteries. We purchased 2 group 31 batteries at a WalMart in NC last October, to replace to batteries that were 6 1/2 years old. 3 weeks later one of the batteries failed in South Georgia, we took it to the local WalMart for replacement. They said they could replace it but not with the same battery. I asked "why not?". The clerk explained that WalMart sells a "North" and "South" version. Sure enough the batteries I purchased were a 65N, the replacement was a 65S. They sell for the same price, but the "South" battery was about 75 less amps.  Jack

[HighTechRedneck]

That is interesting to know.  I imagine the higher amps rating for the northern batteries is to offset the performance loss of lead acid batteries at cold temps.  I wonder if other nationwide battery sellers do the same?

[JackConrad]

I imagine the higher amps rating for the northern batteries is to offset the performance loss of lead acid batteries at cold temps.  I wonder if other nationwide battery sellers do the same?

   I am sure that is the reason, but what upset me is that they charge just as much for the lesser quality "Southern" battery. And I now have an unmatched set of batteries connected in series for our bus starting batteries. But, if they fail, they will go back to the nearest WalMart for the free replacement. 
   I have no idea whether other national battery chains do the same thing.  Jack

[Kristinsgrandpa]

I buy batteries at NAPA, there are 5 times as many NAPA stores as there are Walmarts. 
  Any thing I want, if not in stock, will be here at 8 AM the next day.  Now you'll say Walmart will have them in stock, not so, the local Walmart doesn't stock group 31's and to order will take  a week or more.

Ed

[niles500]

I recently purchased a new set of Group 31 maintenance free's (4) from NAPA and they appear to be doing fine - they especially seemed to handle the long periods of non-usage better than anything I've had so far - and the Group 31's usually have higher cranking amps - FWIW

P.S. - they were only $69 each at dealer cost - I think retail is closer to $100

[Sojourner]

And not all southern Super Wal-Mart have group 31 battery but usually Sam's Club does.

Also "group 31" does mean physical size only........nothing to do with CCA. Check this for yourself  under "HEAVY-DUTY COMMERCIAL BATTERIES 12-VOLT (6 CELLS)" in BCI page: http://www.rtpnet.org/~teaa/bcigroup.html

However "group 31" is available in CCA rate from 625 to 1150 +. So ask or look for group 31 with highest CCA rating with roaming service store warranty.

So don't be misled that you have high CCA just because it is "group 31"

FWIW

Sojourn for Christ, Jerry

[jjrbus]

NAPA's not open on Sunday, not that I would change a battery on the Lords day. But I might bee tempted to pick it up on the way home from church. Try to pull into most NAPA's with your bus.   NAPA is not open at night. I buy my fuel and oil filters at NAPA, I also carry extras. I do not want to carry an extra battery.  And the #1 reason                       I cant camp at NAPA!!!

[Kristinsgrandpa]

I thought we were talking about batteries not camping.

True NAPA stores aren't open on Sunday but it is very, very seldom that a man doesn't have some warning that he is going to need new batteries. There are certain indications that batteries need replaced. I try to monitor mine closely.

I'm sure that there are exceptions to every rule and people dedicated to the rule of semantics will post some exceptions but it still doesn't alter the fact that there are 5 times as many NAPA store as there are Walmarts which makes them more accessible.

The local Walmart doesn't carry group 31's that I can find. Now I could go to the next closest Walmart but, would pass 3 NAPA stores on the way.

Ed