Changing charge voltage for Odyssey battery?

[Jebiruph]

Did you leave the NAPA longer on the battery ?
From experience 100% / ok from a charger, especially NOCO, on a AGM is never the case.
Found out they will continue to absorb even if the charger say ok.

Once the NAPA decides it's done, it turns off charging. I left it on until it finished.

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[Jebiruph]

Thanks for posting this. Is your Napa charger a Carlyle? If so, the Carlyle charger from Napa has a similar charging pattern as the Odyssey-branded CTEK. As I've mentioned before, I don't think the NOCO 10 is good for charging Odyssey's because they don't have an AGM2 mode. It's interesting that the Noco 10 brought the smaller Mopar battery up to proper voltage but not the Odyssey, followed by the Napa charger successfully bringing the Odyssey charge up higher (If I read correctly, still not over surgery that I had Thursday).

It is a NAPA Carlyle CPL2320.

After discharging to 12.57 V, I charged it again with the Noco 10. This time when the Noco 10 finished (solid green light) the battery was at 12.93 V. I left the charger hooked for awhile, but a steady reading of 12.93 V indicated that no additional charging was taking place. A day after charging, the battery settled to 12.83V.

What I'm thinking happened is the battery degraded slightly from sitting for over 2 years and the NAPA charger's restoring phase actually worked, restoring it to a fuller capacity. I had started a repair with the Noco 10, but when I saw the voltage hit 15 V, I terminated it due to Odyssey's warning about 15 V charging.

 

[TMBRWLF]

Does the Odyssey/CTEK OBC-15A have a SoC indicator? How did you determine your battery was less than 80%?



Don't you find it curious Odyssey recommends a 0.4C charge rate as "optimal", but doesn't sell or "approve" a single consumer 12V charger above 25 Amps?



I'm very interested in the difference between AGM and AGM² modes. I couldn't find anything specific, and I dug around quite a bit. Hopefully, it's not "proprietary information", and you get a detailed answer.

AGM Standard, Is Lead Calcium. AGM2 is TPPL

 

[THAW]

AGM Standard, Is Lead Calcium. AGM2 is TPPL

Ok. My question was about the difference in the AGM and AGM² modes for the Odyssey/CTEK charger. The manual states 14.7 Volts for both modes.

 

[roaniecowpony]

A timely thread. I have a dual battery Genesis system with Odyssey batteries. I've gone through 3 batteries in 4 1/2 years. I just ordered 2 Fullriver batteries and I'll install a Gen 3 top. But what caught my eye in the first couple posts was that the Odyssey batteries want to be charged to 12.85v full charge. That coupled with what I just read about the Genesis dual battery installation, starts to paint the picture of why my expensive Odyssey batteries are failing in short order. This Genesis jumper patches in a higher voltage charge threshold. I thought I saw 13.1v but that may have been a figure mentioned in their video. I'll check.

 

[TMBRWLF]

Ok. My question was about the difference in the AGM and AGM² modes for the Odyssey/CTEK charger. The manual states 14.7 Volts for both modes.

I get it. Just seems most over think things. If your getting 14.5v in a battery, it's charging.

 

[THAW]

A timely thread. I have a dual battery Genesis system with Odyssey batteries. I've gone through 3 batteries in 4 1/2 years. I just ordered 2 Fullriver batteries and I'll install a Gen 3 top. But what caught my eye in the first couple posts was that the Odyssey batteries want to be charged to 12.85v full charge. That coupled with what I just read about the Genesis dual battery installation, starts to paint the picture of why my expensive Odyssey batteries are failing in short order. This Genesis jumper patches in a higher voltage charge threshold. I thought I saw 13.1v but that may have been a figure mentioned in their video. I'll check.

As @TMBRWLF pointed out, Odyssey batteries are TPPL, while some AGMs are Lead-Calcium. The Fullriver Throttles are also TPPL, so theoretically they need roughly the same charging parameters as Odysseys. What those special parameters are, and whether most modern AGM chargers (including NOCOs) meet them, is an open question - largely because charger manufacturers don't publish many specifics about their routines.

I have two Odysseys and one Fullriver, and my Fullriver seems to be the better battery, out of the box and over the last couple years.

 

[roaniecowpony]

As @TMBRWLF pointed out, Odyssey batteries are TPPL, while some AGMs are Lead-Calcium. The Fullriver Throttles are also TPPL, so theoretically they need roughly the same charging parameters as Odysseys. What those special parameters are, and whether most modern AGM chargers (including NOCOs) meet them, is an open question - largely because charger manufacturers don't publish many specifics about their routines.

I have two Odysseys and one Fullriver, and my Fullriver seems to be the better battery, out of the box and over the last couple years.

Fullriver has charging data on their website as downloads.

 

[Jebiruph]

A timely thread. I have a dual battery Genesis system with Odyssey batteries. I've gone through 3 batteries in 4 1/2 years. I just ordered 2 Fullriver batteries and I'll install a Gen 3 top. But what caught my eye in the first couple posts was that the Odyssey batteries want to be charged to 12.85v full charge. That coupled with what I just read about the Genesis dual battery installation, starts to paint the picture of why my expensive Odyssey batteries are failing in short order. This Genesis jumper patches in a higher voltage charge threshold. I thought I saw 13.1v but that may have been a figure mentioned in their video. I'll check.

Did you move the IBS to the correct (starting) battery?

 

[TMBRWLF]

As @TMBRWLF pointed out, Odyssey batteries are TPPL, while some AGMs are Lead-Calcium. The Fullriver Throttles are also TPPL, so theoretically they need roughly the same charging parameters as Odysseys. What those special parameters are, and whether most modern AGM chargers (including NOCOs) meet them, is an open question - largely because charger manufacturers don't publish many specifics about their routines.

I have two Odysseys and one Fullriver, and my Fullriver seems to be the better battery, out of the box and over the last couple years.

I spoke with a engineer yesterday at EnerSys. They purchased NorthStar (my old fav batt for sound systems) back in 2019. They produce the Odyssey in my state at Springfield and Warrensburg. My question to them was about chemistry of the batteries. AGM vs AGM2. Since l was looking for quality battery for acc not starting. I wanted more of a deep cycle that'll handle cold (lithium ruled out). The TPPL has been around for 60+ yrs, but never seemed to be out there like the other types. Or l hadn't noticed them. Thicker plates always seemed like a better option for me. After more research, seems these AGM2, though TPPL can work well for DoD without a problem. He stated to charge them like you would lithium. I currently use a First Power Pro 5x2 marine charger to maintain my two Batts in the Mule SxS. I believe I'll be grabbing the Odyssey 25A when l can. I tend to over think things sometimes. Things are expensive, so you want to do whatever will help make them last. However, at the end of the day. Turns out, it's just a battery that needs to hold a charge...

 

[Gorpf]

I think the “AGM2” charging mode may just be a marketing ploy for Odyssey branded chargers. The Odyssey branded chargers do not show a diagram or information for different phases, unlike other chargers made by CTEK. I am guessing the only difference between AGM and AGM2 charging options would be a lower voltage desulIfation phase or elimination of the desulfation phase that runs at 15.8V for a maximum of 8hrs. This phase only runs if sulfation is detected.

I have the 94R H7 yellow top Optima and use the CTEK MXS 5.0 charger, a 4.3A trickle charger with an AGM option. I attach it whenever I park the Jeep in the garage, and have never had any issues with it keeping a proper charge. This charger has 8 possible charging phases:

The ripple and back current specifications are exactly the same for the CTEK MXS 5.0 and Odyssey OBC 15A chargers:

The difference would be that the lower amp charger would not be sufficient to restore a significantly depleted battery and it will take a bit longer to fully charge a battery being maintained.

 

[THAW]

He stated to charge them like you would lithium.

Maybe I'm misunderstanding what he meant, but that seems like a terrible idea.

 

[roaniecowpony]

I followed the gen 1/2 instructions.

Did you move the IBS to the correct (starting) battery?

The Gen 1/2 Genesis comes pre-wired for this configuration.

 

[azjl#3]

I get it. Just seems most over think things. If your getting 14.5v in a battery, it's charging.

Bingo, amp rating is the speed of charging, however voltage is what "breaks through" and allows a charge to occur. 14.4-14-8 to breakthrough and charge an AGM, 13.2-13.8 as a float voltage. That is exactly what the jeep gives my stock AGM, which I do charge every 4 months or so and just passed 2 years of age. I also use a conditioner charger every 6 months and that amazingly takes overnight to condition it back to health.

My odyssey story in my EB, is 7 years old, and shows 100% ready to rock and roll using the overpriced odyssey charger. Or is it overpriced giving me 7 years of life?

Annnd I don't think you can change the voltage of charge in a JL or any car for that matter. I'm just curious why Odyssey requires a charge different than what millions of cars give, yes AGM2 fine, but really? 14.5 volts will charge it fine.

 

[TMBRWLF]

Maybe I'm misunderstanding what he meant, but that seems like a terrible idea.

Appears he saying, charge at high, faster volts. I believe these TPPL are going to be interesting to run in my setup. Time will tell...

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