DieHard Platinum 31M DEAD

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

My Cruiser has been sitting on a Battery Tender Jr for 4 months and the DH Plat seems good... we'll see how it lasts but I believe the tender has a cpu to trickle and stop w/ fully charged.
Love the battery tenders though!

alia176 said:
One thing to note about AGM batts is that they don't like being charged with the older battery chargers, can't recall why that is exactly. Seems that the newer solid state chargers with built in CPUs are what we're suppose to use these days.

Back to your regularly scheduled debate......let's keep it clean and informative please :D
Click to expand...
 
yeah if you use a plug-in charger, use one that properly charges AGM batteries. It'll be a bullet-list feature.
 
Last edited:
80t0ylc said:
If you're basing your point on website info, I think you're in error. Your not going to get the info you need from a website unless it's tech support with an answer to the specific question: Is internal design the same? I understand your pessimistic belief that they are, but I can't accept it. Especially considering remarks made by Sears employees to 31M owners mentioned earlier in this thread regarding automotive charge systems charging the marine batts too quickly. Why don't we hear the same thing for the automotive DHP batts? With a 4 year warranty they'd be out of the battery business having to replace all the defects and you'd think it'd be common knowledge by now with all the consumer watchdogs.
Click to expand...
Really? Don't trust the website, trust the Sears guy? I have also been using Odyssey PC925's that are sold as part of their Motorcycle battery line in my sports car (V6) for the past 15 years. It has worked fine but spends most of its time on a multi-stage AGM charger.

Anyway, I asked Odyssey directly and received an answer. I tried to contact Diehard but could not get the inquiry form to work on two different browsers. You can try, if you want. I don't need any more info.


Hello,

Yes, the only difference between any of the PC2150 ODYSSEY series batteries is labeling and terminal configuration. They all perform the same and are manufactured using the same TPPL AGM technology.

Thank you for contacting EnerSys/ODYSSEY.

Sincerely,

Kathy Mitchell
ODYSSEY Sales/Support Representative
Phone: 660-429-7551
Toll Free: 888-422-0317
Fax: 660-429-1758
Email: kathy.mitchell@enersys.com
Web site: www.odysseybattery.com
Corp site: www.enersys.com

Response to Inquiry:
Hi, I'd like to know if your batteries designated for Marine use are the SAME INTERNALLY as your batteries for Auto use.

I'm interested in the PC2150. I understand you offer it in a 31-PC2150 and a 31M-PC2150 but am wondering if that is just a difference in terminals.
 
hoser said:
Really? Don't trust the website, trust the Sears guy? I have also been using Odyssey PC925's that are sold as part of their Motorcycle battery line in my sports car (V6) for the past 15 years. It has worked fine but spends most of its time on a multi-stage AGM charger.

Anyway, I asked Odyssey directly and received an answer. I tried to contact Diehard but could not get the inquiry form to work on two different browsers. You can try, if you want. I don't need any more info.


Hello,

Yes, the only difference between any of the PC2150 ODYSSEY series batteries is labeling and terminal configuration. They all perform the same and are manufactured using the same TPPL AGM technology.

Thank you for contacting EnerSys/ODYSSEY.

Sincerely,

Kathy Mitchell
ODYSSEY Sales/Support Representative
Phone: 660-429-7551
Toll Free: 888-422-0317
Fax: 660-429-1758
Email: kathy.mitchell@enersys.com
Web site: www.odysseybattery.com
Corp site: www.enersys.com

Response to Inquiry:
Hi, I'd like to know if your batteries designated for Marine use are the SAME INTERNALLY as your batteries for Auto use.

I'm interested in the PC2150. I understand you offer it in a 31-PC2150 and a 31M-PC2150 but am wondering if that is just a difference in terminals.
Click to expand...
So you did ask specifically, I'm impressed! Thanks for sharing. I didn't see this if you posted it before. My apology. I can now understand your previous posts better. That sucks that Sears won't respond & also that both types share the same design - even with Odyssey. Looks like the biggest difference is the terminal format - automotive style, threaded posts or both.
 
I just asked Odyssey this morning and Kathy replied a few hours later. It's not that Sears won't respond. Their inquiry form isn't working for me. I'm sure a phone call would work better but I'm not waiting around.
 
If I have one tomorrow I'll make a phone call. I'm interested to see if their marine group 31's are internally different than their automotive batteries.
 
ncduckman said:
I am on my second one as well. It just flat crapped out after a year. Brought it in, got a new one, and the warranty was reset. Hopefully it will last?
Click to expand...

Battery #3 crapped today. I had to check this thread to see how long it lasted. I guess I get a new battery every year out of the deal. I do not think it is worth it. The Cruiser must start when told.
 
FWIW...I have 3 costco batteries in all 3 of our Yotas and all started when it went to -15 here in mid west just a short time ago. I change them every 5-6 yrs and have never had a problem.
Hard to argue with the 3 yr no questions asked return policy either...they are not prorated.
 
You guys still not convinced that these batteries aren't meant to be used in our trucks? 1-2yr life for such an expensive, heavy duty battery is not acceptable. I doubt many of us here use that batteries that much that they get fried so quickly.
 
NLXTACY said:
I'm definitely not convinced because there is likely another reason.
Click to expand...
Do you know if they fry quickly when used in other rigs too? I always come across comments saying that these batteries should be trickle charged over a long period of time, and that our charging system is what's killing them...
 
I guess I was wrong on the dates of death of my batteries.

Bought first one 09/2009, died and replaced on 04/2011.
Battery #2 died today.

So I am getting about 20 months out of them. According to my receipt, the warranty does NOT reset, so the original purchase date applies to 36 month replacement warranty. So, in my case, I will be purchasing a new battery.

Any suggestions/alternatives?
 
Do you need extra battery terminals?
 
jcardona1 said:
Do you know if they fry quickly when used in other rigs too? I always come across comments saying that these batteries should be trickle charged over a long period of time, and that our charging system is what's killing them...
Click to expand...

This is true. The way an alternator charges & the way a slow charger charges is different. The alternator is what's shortening the batteries life. I could use $75 Interstate deep cycle batteries in my 5th wheel camper for years & I ran them completely dead all the time then fully charge them(hard on the battery running them down to <10%). When we tried a $150 auto battery used the same way it lasted <11 months. The difference here is a slow charge versus an alternator. I'll not put a deep cycle marine type battery in an auto. In our boat w/a V6(w/an alternator) we use auto type batteries because the DC/M type don't last. It's a marine vehicle but the difference is an alternator! If you want a Sears DH get the Advanced Gold. It should last you 5-7 years.

http://www.sears.com/diehard-advanc...p-02850733000P?prdNo=3&blockNo=3&blockType=G3
 
I have two 31Ms from 5 years ago. Only one died....5 years later which was my main. I do agree about the charging system being the culprit. Since I now have the 150A alternator it may very well be shortening the battery life. Doesn't mean I'm ready to give up on Sears Platinum, only that I may switch over to the non-marine version. THAT being said, its been reported that there is very little if any difference between the M and non-M Platinums.
 
Last edited:
Post #64 above tells us the marine and auto batteries function the same.
I'm thinking my next battery would be the same or close CCA's but the longest warranty.
 
PDoyle said:
Post #64 above tells us the marine and auto batteries function the same.
I'm thinking my next battery would be the same or close CCA's but the longest warranty.
Click to expand...
I understand what the lady from Odyssey said but I don't believe her.
A snapshot of a great battery article:

Basically there are two types of lead acid batteries (along with 3 sub categories); The two main types are Starting (cranking), and Deep Cycle (marine/golf cart). The starting battery (SLI starting lights ignition) is designed to deliver quick bursts of energy (such as starting engines) and therefore has a greater plate count. The plates are thinner and have somewhat different material composition. The deep cycle battery has less instant energy, but greater long-term energy delivery. Deep cycle batteries have thicker plates and can survive a number of discharge cycles. Starting batteries should not be used for deep cycle applications because the thinner plates are more prone to warping and pitting when discharged. The so-called Dual Purpose Battery is a compromise between the two types of batteries, though it is better to be more specific if possible.

The whole article:
http://www.batterystuff.com/kb/articles/battery-articles/battery-basics.html#2
 
In my opinion only, she may very well be honest in what she is saying and the two batteries are indeed the same but for ONLY warranty purposes they make an M version so as not to warranty it for as long as a non-M. Its purely dollars and cents concerning the warranty.
 
You must log in or register to reply here.

Similar threads

Belov
Dead Squirrel Locations
Replies
10
Views
1K
lelandEOD
lelandEOD
B
1994 FZJ-80 AU Spec. Was dead but not any more.
Replies
2
Views
532
Bennos Shed
B
A
Hail Mary-Both DS Windows Dead
Replies
1
Views
485
TXMeatball
TXMeatball
T
Sound Deadening the 80
2
Replies
21
Views
2K
tmxmotorsports
tmxmotorsports

Users who are viewing this thread

Total: 1 (members: 0, guests: 1)

Share this page

Back
Top Bottom