Battery charger / tender for AGM Odyssey PC925

[Blackbox]

Hi,
I have an Odyssey PC925 installed in one of my cars,
The car often sits in the garage for months on end, and unfortunately the battery has had a premature death,
It currently lives on a Noco G3500 Smart Charger,
Is this an adequate charger to maintain the PC925?

I have gone into the wormhole of reading about the batteries and chargers, and have realized that one of my mistakes was never utilizing the AGM setting on the charger, however it is still not clear if this is suitable.

If not, what is a suitable charger that is not overly priced? I am in Australia and cannot see anybody selling the Odyssey charger.

 

[Escape08]

I've used Battery Tender Jr for 4 years now and never had a problem with AGM battery.
https://www.batterytender.com/produ...VFYWimRAExReT9zm0xFv3jUEHunOYUB-wnpmHeNpZH7wb

 

[CharBaby]

I am using a(says for) lead acid battery maintainer on several AGM batteries and they seem to work just fine, keeping my batteries up to snuff. Maybe they're not optimal but nothing I've notice.

 

[LazyDog]

Why not just disconnect the ground side cable when sitting

 

[DuckRyder]

There's absolutely no reason that noco charger shouldn't be fine on the proper AGM setting.

 

[UncleDave]

Hi,
I have an Odyssey PC925 installed in one of my cars,
The car often sits in the garage for months on end, and unfortunately the battery has had a premature death,
It currently lives on a Noco G3500 Smart Charger,
Is this an adequate charger to maintain the PC925?

I have gone into the wormhole of reading about the batteries and chargers, and have realized that one of my mistakes was never utilizing the AGM setting on the charger, however it is still not clear if this is suitable.

If not, what is a suitable charger that is not overly priced? I am in Australia and cannot see anybody selling the Odyssey charger.

This is going to be controversial but after 15+ years the PC 1700 in my truck only rarely got a true 14.7V charger, and most often (95%) used a 14.3 Volt charger on it when I even bothered with one at all.

Ive gotten over a decade from a pair using 14.3 V chargers in my boat.

Is 14.3 ideal? No. Is it 100% better than no maintenance charger - you bet it is.

My goto are over a dozen gen 1 optimate 6's and a few CTek 7200. Ive never lost a single one of these in well over a decade of use.

If I were buying the new optimate 6's Id buy the ones with the AGM settings.

 

[repairman54]

13 yr. old Odessey in my HD, it's been on a BatteryMinder since day one. No issues and being in the NE it sees long winter parking.

 

[Hirev]

On most modern gas cars, trucks, and suv only charge at 14.4 volts max or slightly less from what I've seen. My record for longest lasting battery was a Scion OEM AGM battery @ 13 years. The Scion never charges above 14.2 volts. Ironically the my record for shortest battey life I ever had was a yellow AGM @ 1 1/2 years. I had issues with older style Noco battery maintainer overcharging batteries in the past and no longer use them. The CTEK chargers I have have yet to them hurt a battery after many years. I don't like how AGM settings generally raise the voltage level above what the battery will ever see in most gas vehicles.

 

[JeffKeryk]

Costco battery tender.

 

[StarCaller]

13 yr. old Odessey in my HD, it's been on a BatteryMinder since day one. No issues and being in the NE it sees long winter parking.

BatteryMinder
That's the keyword here /

 

[SubLGT]

Hi,
I have an Odyssey PC925 installed in one of my cars....

You should download the Odyssey Technical Manual. It provides specific charging parameters for Odyssey batteries. For example, float voltage should be 13.6V at 25degC. Temperature compensation should be 18mV per degC variation from 25degC.

 

[f355spider]

I have used standard battery tenders on an Odyssey AGM without issue.
If you are concerned, Battery Minder does make AGM tenders with an Odyssey approved, algorithm. I now own several of them...even though I don't currently have any Odyssey batteries.

 

[f355spider]

13 yr. old Odessey in my HD, it's been on a BatteryMinder since day one. No issues and being in the NE it sees long winter parking.

Which version are you using? Flooded or AGM, or does it have multiple settings? I have three battery minders...one is flooded, one is AGM ,and one is selectable, including Lithium Ion.

 

[repairman54]

AGM battery. 1.5A maintainer/conditioner. Model 1510. Have several in play on 2 bikes, both are AGM and one on my Traverse AGM garage queen. OPE and boat flooded have them on also. 2 snowmobiles with sideways mounted AGM also. One sled still has its 2013 Yuasa battery still in it.

 

[Ranger83]

We have switched to the NOCO chargers as they support Li batteries. But Battery Tender Jr. worked fine on AGM. Sprinter battery:

 

[RitcheyRch]

I have used standard battery tenders on an Odyssey AGM without issue.
If you are concerned, Battery Minder does make AGM tenders with an Odyssey approved, algorithm. I now own several of them...even though I don't currently have any Odyssey batteries.

I've been tempted to buy a few BatteryMinder 128CEC2's for my new Odyssey batteries.

Not sure if my Solar PL2320 or Battery Tender are capable of charging and maintaining the Odyssey 27F or H6's in my vehicles.

 

[f355spider]

I've been tempted to buy a few BatteryMinder 128CEC2's for my new Odyssey batteries.

Not sure if my Solar PL2320 or Battery Tender are capable of charging and maintaining the Odyssey 27F or H6's in my vehicles.

When I had my Odyssey battery I didn't even know they had a recommended battery charger or tender. I just used a 1.5 amp Schumacher microprocessor-controlled battery tender periodically and never had an issue. I sold the car 3 or 4 years later.

Here is the recommended list:
https://www.odysseybattery.com/wp-content/uploads/2020/05/ODYSSEY_approved_12V_chargers.pdf

 

[RitcheyRch]

When I had my Odyssey battery I didn't even know they had a recommended battery charger or tender. I just used a 1.5 amp Schumacher microprocessor-controlled battery tender periodically and never had an issue. I sold the car 3 or 4 years later.

Here is the recommended list:
https://www.odysseybattery.com/wp-content/uploads/2020/05/ODYSSEY_approved_12V_chargers.pdf

Thanks. This is my first Odyssey battery and just want to make sure I dont use something that can void the warranty.

 

[Wheel366]

When I had my Odyssey battery I didn't even know they had a recommended battery charger or tender. I just used a 1.5 amp Schumacher microprocessor-controlled battery tender periodically and never had an issue. I sold the car 3 or 4 years later.

Here is the recommended list:
https://www.odysseybattery.com/wp-content/uploads/2020/05/ODYSSEY_approved_12V_chargers.pdf

Odyssey is weird with this list. Their product page lists what amperage the charger should have amperage wise. For instance, the group 24 says "Recommended Min. Charging Current (A) 5.8A". So, my CTEK 7002 should be good cause it is 7A but the list above says it is only good for batteries up to 16Ah. And the other charger listed isn't available. Though, I'm sure it is one of the rebranded Odyssey chargers for $300+.

 

[f355spider]

Odyssey is weird with this list. Their product page lists what amperage the charger should have amperage wise. For instance, the group 24 says "Recommended Min. Charging Current (A) 5.8A". So, my CTEK 7002 should be good cause it is 7A but the list above says it is only good for batteries up to 16Ah. And the other charger listed isn't available. Though, I'm sure it is one of the rebranded Odyssey chargers for $300+.

If you read the header for each subsection, it kind of breaks out the listings....like the 2 amp Battery Minder is for "trickle only". Whereas the Ctek can be used as a charger for up to 16ah, but fine as a trickle charger (maintenance) for larger batteries.

Their document could be better written. It needs an update too, since Battery Minder CEC128C1 has been discontinued, and are they even aware that Battery Minder has changed their algorithm with a lower voltage during the float? (though the charging voltage remains compliant to Odyssey requirements.)