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What's people's experience with this type of battery? Any special care with it?
These are by far some of the best on the market, no special care meaning they are sealed so no corrosion onto posts, leakage or refilling of each chamber. Good voltage and cold starts and ability to deep cycle through.

Down side is the cost replace , again another plus for Hyundai for adding to the car most still the non gel type that leak. I was surprised when looking at mine the other day and seeing it was a AGM with over 600 cold cranking.
 

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AGM batteries have been around for a long time. I'm just seeing them used in cars though. The electrolyte is absorbed so the battery can be installed on it's side. That's why they have been used in motorcycles and ATVs for a while.

They take a little higher charge wattage. Any modern smart charger will have an AGM setting. They also have a much slower self discharge rate. So if you drive your car more than just a few miles a week you will probably never need a trickle charger.

Not sure if the life expectancy is as high as led acid though. I've never owned anything with an AGM long enough to know.
 

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AGM batteries have been around for a long time. I'm just seeing them used in cars though. The electrolyte is absorbed so the battery can be installed on it's side. That's why they have been used in motorcycles and ATVs for a while.

They take a little higher charge wattage. Any modern smart charger will have an AGM setting. They also have a much slower self discharge rate. So if you drive your car more than just a few miles a week you will probably never need a trickle charger.

Not sure if the life expectancy is as high as led acid though. I've never owned anything with an AGM long enough to know.
I have been using Optima AGM's in my vehicles for years.
Never had a failure yet.

My Kona sat for 2 months with only .2v loss. (12.9V @ Park and 12.7V on Return)
So slightly higher float voltage than usual

Pretty good and I would keep going with them.
 

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Optimate 7 Ampmatic Chargers are great for everyday use. They are logic controlled, have a de-sulfating cycle also. They have all sorts of accessories, check them out. https://optimate1.com/?v=7516fd43adaa . They also can be purchased thru Amazon long with the accessories.https://www.amazon.com/gp/product/B076JM84G3/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1

I kept the Kona and Genesis on one and also now the Veloster N. They keep the battery at maximum efficiency.

Blessings and Peace
 

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Any good modern smart charger should have an AGM setting. Don't equalize (desulphate cycle) an AGM battery unless the manufacturer says its OK. You cannot add water to an AGM.
 

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I use AGMs in my motorcycles. You can get a really good quality one made in China cheap. I suppose if you look around somebody will have a knockoff of the Hyundai OEM for much less.
 

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I have 3 regular chargers, but needed to get a GOOD one for the Kona's AMG battery. I have the same one in my boat with lead acid batteries. This charger also has an equalization mode for lead acid batteries.



https://minnkotamotors.johnsonoutdoors.com/sites/johnsonoutdoors-store/files/product/minchargers/1067154/ProductImage/1067154_primary.jpg


https://www.amazon.com/MINN-KOTA-1831100-MK110PC-Precision-Charger/dp/B00FM1W9V0/ref=sr_1_7?ie=UTF8&qid=1549578278&sr=8-7&keywords=minn+kota+10+amp+precision+battery+charger


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