Odyssey vs. Diehard Platinum

dstock

Explorer
I encourage you to talk to Odyssey to see if there is a chance to recover your Platinums and how they would recommend going about it. No guarantees, am sure, but if you stick with an Enersys product, the Ultimizer (or equivalent) in addition to what you are doing is looking more like what you need if you want better life. Mine are holding 12.86 volts OCV at a battery temp of 25 deg F in their 3rd winter. OCV goes higher as they warm to 45 F.

I called Odyssey and spoke to a very helpful gentleman there regarding my situation.

First of all, he explained that the Diehard Platinum while similar is a lower end version of the Odyssey battery. I did not ask him to go into detail but for those that want detail give them a call at 888-379-2555.

His suggestion regarding my batteries was to drain them down to about 11.2 and then put them on a charger, doesn't have to be an Odyssey Ultimizer, but he said getting a charger that would get up to 14.7 would be better, and to do this about 4 times. He said this might get me over the 14.4 resting "hump" and get them back to where they belong. No guarantees of course...
 
I called Odyssey and spoke to a very helpful gentleman there regarding my situation.

First of all, he explained that the Diehard Platinum while similar is a lower end version of the Odyssey battery. I did not ask him to go into detail but for those that want detail give them a call at 888-379-2555.

His suggestion regarding my batteries was to drain them down to about 11.2 and then put them on a charger, doesn't have to be an Odyssey Ultimizer, but he said getting a charger that would get up to 14.7 would be better, and to do this about 4 times. He said this might get me over the 14.4 resting "hump" and get them back to where they belong. No guarantees of course...

Well, that offers some hope. It never had to be an Ultimizer, just something that can do the same thing for your battery ah capacity. For the voltage he suggested you take them down to, I would figure that the .4 x C10 rate for your battery is going to be pretty important. I'm using something wwwaaaayyyyy less in the amps dept and know I'm taking a chance, but then mine have never seen a deep discharge. Good luck!
 
Last edited:
I called Odyssey and spoke to a very helpful gentleman there regarding my situation.

First of all, he explained that the Diehard Platinum while similar is a lower end version of the Odyssey battery. I did not ask him to go into detail but for those that want detail give them a call at 888-379-2555.

His suggestion regarding my batteries was to drain them down to about 11.2 and then put them on a charger, doesn't have to be an Odyssey Ultimizer, but he said getting a charger that would get up to 14.7 would be better, and to do this about 4 times. He said this might get me over the 14.4 resting "hump" and get them back to where they belong. No guarantees of course...

The phone # is for a distributor instead of Odyssey. When I first got interested in Odyssey batteries a few years ago, after doing the internet search I found myself on this distributor's web site. It's an easy road to go down, because the site name is nearly identical and it's the first link that shows up in the search. This distributor has no other association with the manufacturer.

Anyway I went ahead asking them about the difference between the Odyssey and the Platinum and they couldn't say anything other than the Platinum was at the low end of the Odyssey spec. I already know that not to be the case with mine as published specs are concerned from 2012.

For the Odyssey folks, the web site is http://www.odysseybattery.com/ and their contact information is
Enersys Energy Products, Inc in Missouri at 660.429.2165 or EnerSys (Global HQ) in PA at 800.538.3627. There is also an Australian office.

If I were to dig up my notes from the discussion with Odyssey, it would have been the Missouri #. As far as getting any information from a distributor or retailer, could they have an interest in telling us that the Platinum is "lower end"? The specs and my discussion with Enersys don't bear that it's lower end. My notes might say the case might be different, but to my recollection, nothing of substance with the electrical specs. It's a natural assumption to make that if you pay less, the product must be less and I don't fault anybody for making it as in most cases, that is true.

The response for the recommended charger just seemed a little weak. Not anything like the in depth response I got from Odyssey's engineering dept.

No question that the 14.7 volts is important once you get into the constant voltage stage (absorption). Before that, though and I will even risk saying more critical for a deeply discharge battery, is that .4 x C10 rate I mentioned so many times. For a 65 amp hour battery, their formula comes to 26 amps in the bulk stage but say in their materials 25 amps from the Ulitmizer (or equivalent) will do the trick. The C10 rate has to be included in the selecton criteria for a charger or just follow their charger selection chart. The mfr remains the best source of information for the specs and care for these batteries.

Even in view of this development, I have hope for those batteries.
 
Last edited:

Hilldweller

SE Expedition Society
Yeah, I got no love from Sears a couple of years ago when my DieHardPlatinum would settle down to 12.2 volts after a night's rest.
 

jeffjeeptj

Adventurer
I've got three Platinum 31s, a PC2250, a PC1750.
2 or the Platinums are three years old. The third is one year old.
The 2250 is 7 years old and was mis- treated by periodically discharging to 70% and letting it sit for 6 months in a black cargo trailer in Tennessee. Then charging it with a 6 amp charger (three mode), then sitting unused for over a year and a half
The 1750 is 2 years old and is used in a 2003 Sequoia. This 1750 replaced a 8 year old 1750 used in the same Sequoia (wife's car - driven every 2nd or 3rd day.) The 8 yo was replaced since it went flat when we were out of town on a contract job, and risking a dead battery was not an option. I did not try to recharge it. Autozone did test it and state "bad".
About 6 months ago i got serious about battery life and drank the Odyssey Kool-Aid. bought an Ultimizer 3 channel 50 amp charger. I did this after reading the battery and charger manuals on the Odyssey website. It is manufactured by Schumacher. The two oldest Platinums and the 2250 had low resting voltages around 12.1, after resting for two weeks. I put these batteries thru 6 of the discharge cycles described above (and in the battery manual). I charged the batteries about 1 month ago, just checked the voltages today, after sitting in the garage, both Plats 12.8, the 2250 12.7. I used a Fluke digital VOM, but not calibration verified since 2010.
The Ultimizer has one switch, charge on or off. A second switch cycles thru voltage, amperage, and percent charged displays. I have not looked inside the charger. I suspect the charger meets Odyssey's charging curves. The voltages displayed onthe charger do, as it moves along the charging curve.
The 2Plats and the 2250 get used for a variety of things, ARB fridge, bilge pump to drain a low place in my yard, Viair, 12v lights, ham radio, inverter. I used the ARB to discharge the batts when they were being cycle charged.
Also ironic, the best price for the Ultimizer was Sears online.
 
Last edited:

dstock

Explorer
I've got three Platinum 31s, a PC2250, a PC1750.
2 or the Platinums are three years old. The third is one year old.
The 2250 is 7 years old and was mis- treated by periodically discharging to 70% and letting it sit for 6 months in a black cargo trailer in Tennessee. Then charging it with a 6 amp charger (three mode), then sitting unused for over a year and a half
The 1750 is 2 years old and is used in a 2003 Sequoia. This 1750 replaced a 8 year old 1750 used in the same Sequoia (wife's car - driven every 2nd or 3rd day.) The 8 yo was replaced since it went flat when we were out of town on a contract job, and risking a dead battery was not an option. I did not try to recharge it. Autozone did test it and state "bad".
About 6 months ago i got serious about battery life and drank the Odyssey Kool-Aid. bought an Ultimizer 3 channel 50 amp charger. I did this after reading the battery and charger manuals on the Odyssey website. It is manufactured by Schumacher. The two oldest Platinums and the 2250 had low resting voltages around 12.1, after resting for two weeks. I put these batteries thru 6 of the discharge cycles described above (and in the battery manual). I charged the batteries about 1 month ago, just checked the voltages today, after sitting in the garage, both Plats 12.8, the 2250 12.7. I used a Fluke digital VOM, but not calibration verified since 2010.
The Ultimizer has one switch, charge on or off. A second switch cycles thru voltage, amperage, and percent charged displays. I have not looked inside the charger. I suspect the charger meets Odyssey's charging curves. The voltages displayed onthe charger do, as it moves along the charging curve.
The 2Plats and the 2250 get used for a variety of things, ARB fridge, bilge pump to drain a low place in my yard, Viair, 12v lights, ham radio, inverter. I used the ARB to discharge the batts when they were being cycle charged.
Also ironic, the best price for the Ultimizer was Sears online.

This is encouraging, I have been jamming trying to get my trailer build to a usable state, so haven't had any extra time to start the battery recovery cycle with the Ultimizer.
 

badtoytrd

Mountain Lover
Price of Diehard

Has anyone recently purchased Diehard platinums lately? It looks like the price has come up significantly (250) which is about the same as Odyssey.
 

teotwaki

Excelsior!
Has anyone recently purchased Diehard platinums lately? It looks like the price has come up significantly (250) which is about the same as Odyssey.

I've not seen any recent sales so I may go back to a CostCo (Interstate) battery and just change it out every 2 years.
 

dwh

Tail-End Charlie
<raises hand>

It's 2015 now, am I cleared to take off? :)


I was just catching up and saw one post about the Platinum being a lower-end product from the same manufacturer. Was some question about whether a distributor of Odyssey would have a vested interest in saying that. Could be. I wouldn't be surprised.


However, I'll offer an anecdote about Sears...

My mom's fridge was pretty old and I had had to rebuild the ice machine a few times. Mom was an ice junkie; being raised in the south, there had to be a glass of iced tea somewhere within reach at all times. When the ice machine would stop working, I'd hear about it long and hard until I schlepped over there and did something about it. Over the years, this became more frequent. Like once a month frequent.

Finally I just got sick and tired of it, and since Xmas was coming, decided to buy mom a new fridge - though the only thing I really cared about was A) a bulletproof ice machine, and B) a long warranty so someone else would have to take the call if the ice machine quit working.

Went to Sears and looked at their very best Kenmore side-by-side fridge. Really nice, even had a built-in replaceable water filter. Ice dispenser fed from an ice bucket in the door. Removable ice bucket, that could be pulled out and the ice poured into some other container. There was a drive motor in the door, with a shaft that linked to the blades in the bottom of the ice bucket. Sort of like a blender. To dispense ice, the blade turned one way, to dispense crushed ice, it turned the other way.

Pulled out the ice bucket, and saw that the shaft coupling from the motor shaft to the blade shaft was a keyed coupling. A bit like this, except on that unit, there were 3 lands and 3 grooves on each shaft:

keyed.jpg

Also, the couplings were not replaceable - the grooves were machined directly into the shaft ends. AND upon removing the ice bucket, I noted on the floor demo model that one of the teeth was broken off the end of the motor shaft...bloody hell. To fix that, you'd have to replace the motor.

Playing with it a bit, I could see how it could happen - misalignment of the shafts when the ice bucket was seated. Crap. I wasn't going to buy a failure waiting to happen. Looked around the showroom floor. Spotted what looked like an identical fridge, but with a Whirlpool badge on it. Went over and opened it up and yup, identical.

Then I pulled out the ice bucket and lo and behold - someone had added a sleeve around the motor shaft, which extended past the motor shaft and forced a proper alignment between the two shafts. Nice.

So I asked the sales lady why the Whirlpool was better than the Kenmore. Here is what I was told:

"Sears works with manufacturers to design a new product, and the manufacturer makes it. But the deal is, that the manufacturer cannot sell the same product, under their own name, until a certain time has passed. On some products it's six months, on others it's a year."

(So that Whirlpool fridge was the same model, but Whirlpool had a year to refine the design before they started selling it under their own name.)



So for me personally, it's not far-fetched to think that perhaps the Diehard Platinum is not *exactly* the same as the Odyssey. I'm not saying it isn't, but am saying I wouldn't be surprised to find out there is a difference.



And to end the story...

Bought mom the Whirlpool. With 10 year extended warranty, and free delivery and installation - 2300 bucks all in. It was worth it - not one problem with that ice machine in the next decade until mom died.
 

teotwaki

Excelsior!
dear DWH

"Sears Jim" will attack your story and insist that Kenmore products are made to strict standards in State Of The Art Factories....

My DHP battery is getting pretty old so it does not compare to Kenmore. Somwhere in this thread there is a much shorter anecdotal story where some random Odyssey engineer says the batteries are the same.

Happy New Year!
 

Forum statistics

Threads
188,151
Messages
2,902,832
Members
229,582
Latest member
JSKepler
Top