AGM battery in DD

[KoalaCruiser]

Can I use the Odyssey PC1200MJT in my 2012 Hyundai Accent? Any issues with an AGM battery for daily usage?
I went to several shops and they said my battery is going bad, although it can still start the car. I run an odyssey PC1500 in my off road rig that rarely sees use and still starts every time.

 

[Bryankkkk]

Ive been using a Odyssey in my Summer truck for past few years, no issues. During winter I put a tender on it.

 

[GutsyGecko]

I've had an optima yellow top deep cycle AGM in my daily driver for 7 years. It has never seen a tender. Is still fine.

 

[Chris142]

Optima red top in my jeep and a-zones agm's in my truck here.

 

[Rolla07]

Your car is a 2012 and the battery is bad already? I realize that where you are its extreme heat but I would assume its not normal..(i could be wrong). No warranty on the battery you have in it?

 

[SHOZ]

Yes you can. But the PC1200MJT is way too much battery. I've used a PC 925 in my Ford Taurus V8 for 3 years. Now the same battery has been in my Hyundai Genesis Coupe for the last three years.

The Odyssey is the best battery you can get IMHO.

 

[JHZR2]

Nothing wrong with running an AGM, though as a battery guy, Im not sure that Id run them in most applications due to cost and CBI.

In applications where the battery is in the trunk or under a seat, I think they are good. For underhood applications, Im not as convinced. For applications where the alternator tends to operate at a lower voltage (e.g. some euro cars), I also dont like their use, as they tend to prefer a slightly higher charge and float voltage.

 

[rslifkin]

I've got a Duracell marine AGM (made by East Penn) in the Jeep. No issues in the 2 years it's been in there, and it's nice to know I can drain it fairly low without damaging it.

 

[SHOZ]

The one I have now and have been using almost six years I bought it off ebay. It was a dead as you could get as it had been sitting for over two years. Took three days to get it charged up as at first it would not take a charge.

 

[kgb007stb]

Since we have so many Odyssey fans here, anyone heard anything bad about the Odyssey batteries?

Seems to me that from the few members who have used them here, all report nothing but positive experiences throughout the years.

I just can't seem to justify the 3x cost, this looks to be a top notch AGM battery. Survived 9 years on an Exide Orbital.

If you are using the stock battery, watch out, they do go out fast, mine 2010 Sonata was replaced in 2012. For what ever reason, the OEM battery Hyundai uses are junk.

 

[KoalaCruiser]

Originally Posted By: kgb007stb

If you are using the stock battery, watch out, they do go out fast, mine 2010 Sonata was replaced in 2012. For what ever reason, the OEM battery Hyundai uses are junk.


Exactly. Seems like the OEM battery isn't up to the conditions here (bumper to bumper traffic, tropical weather, higher engine load due to A/C running.)

Also the cost of the OEM battery is nearly the cost of an AGM here. My battery was 5 months out of warranty and Hyundai doesn't prorate nor do they accept exchanges.

 

[dparm]

Tons of OEM batteries are AGM. I see no reason not to use one.

BTW, Odyssey makes the DieHard Platinums.

 

[dailydriver]

Originally Posted By: dparm
Tons of OEM batteries are AGM. I see no reason not to use one.

BTW, Odyssey makes the DieHard Platinums.


Do they have Sears Auto stores in the Asian Pacific Islands??
(Sears DOES charge substantially less for the Odyssey with their stickers/case color than almost ANY Odyssey dealer could, as well as from EnerSys directly!

)

 

[dailydriver]

Originally Posted By: JHZR2
For underhood applications, Im not as convinced.


Why is that, are they just not as good in a hot environment as a flooded acid deal??

This is the first I've ever heard of this critique (I've heard the charging/alternator caveats before).

 

[SubLGT]

According to DEKA, AGM batteries are more susceptible to thermal runaway during charging than a flooded or gel battery, and a hot engine compartment can facilitate this process. They recommend that temp sensor be located on the battery, not the alternator, and that charge voltage be limited to a max of 14.6V at 68 degF.

 

[SHOZ]

I have mine in the trunk. Better weight distribution anyway.

 

[kb27]

Originally Posted By: dailydriver
Originally Posted By: JHZR2
For underhood applications, Im not as convinced.


Why is that, are they just not as good in a hot environment as a flooded acid deal??

This is the first I've ever heard of this critique (I've heard the charging/alternator caveats before).

Perhaps the water acts as a heat sponge.
We all know how much heat capacity water can hold.

 

[SHOZ]

There is nearly the same liquid in a AGM battery as a flooded. But a AGM battery has more solids.

 

[901Memphis]

Did you get a print out of your battery test? If it's just a little short on amps I wouldn't replace it, but if the voltage is low due to a dead cell it needs replaced. Make sure the shops are entering the correct oem crankings amps.

 

[martinq]

The price premium is easily offset by the weight savings, non-corrosive behaviour and the long life. Odyssey batteries are cheaper to use in my experience.

My last Odyssey was a PC680 and ran for nine years in two cars. The replacement is a PC625 which packs a bit more power and weighs less at about the same price.

http://www.odysseybattery.com/battspecs.html

Most automotive charging is not ideal for AGMs but they're close enough for typical use. Ideally you'll want a proper temperature compensating charger to top-up the battery every so often and for very cold temps.