Battery replacement

[kavisic]

Unfortunately, I've never had a battery go so fast. In my 40 years of driving and dozens of cars, you always had a warning....slow crank; solenoid sound, etc. Unfortunately, my wife called me while out shopping and complained about the steering being difficult. Then...she called 15 minutes later and said she was lucky she was able to steer it to a open parking space.

So....sluggish steering is a hint that it's going (and extremely dangerous in my opinion as the car's steering is 'sluggish' and heavy to begin with. Unfortunately, we had to have it towed to a dealer. The two truck sent by Hyundai couldn't even jump start the car. Bend over.

So...I'd like to ask people...how do you know it's going? Do you have to buy a battery tester and check it every couple weeks?

Good to know about the steering. When the battery failed on my Azera, there was no warning whatsoever, just all kinds of "dancing lights" on the dash and no start! I have since bought a Solar BA7 battery tester from Amazon and keep it in the trunk.

 

[Mark_888]

So...I'd like to ask people...how do you know it's going? Do you have to buy a battery tester and check it every couple weeks?

This subject has been discussed in other threads, but I guess not this one.

Some batteries go bad gradually, and I guess you are familiar with that.

But some batteries fail almost instantly, due to physical damage of the internal plastic structure of the battery that compromises the individual cells and neutralizes one or more of them so that they can no longer hold a charge. The physical damage is more likely to occur when a battery heats up, or is operated in hot climates, and then some physical event occurs to damage the internal structure, like a rough road or pothole, etc. There is usually not much warning for this kind of damage.

But even when a battery fails because of physical damage, it may not be noticed until you turn off the car and try and restart it, since the alternator continues to supply current to the automobile.

AGM (Absorbent Glass Mat) batteries are more resistant to physical damage, and usually have less discharge even if there is damage, due to the acid being contained in glass mats instead of 6 large cells in a flooded cell battery. They were originally developed by for use by the military years ago but are now common in high end passenger vehicles. I believe that the newer Genesis models specify AGM as the OEM battery type.

AGM batteries are often labeled as Platinum quality at places like Advance Auto Parts or AutoZone.

 

[dadgonebroke]

My local AutoZone had a Platinum battery in stock for $189 with- I assume free installation- and my dealer has an OEM battery at $190 with $20 installation. I found a 10% off service coupon and had the dealer do the OEM battery install. Easy peasy! Good for another 7 years I hope!

 

[Mark_888]

My local AutoZone had a Platinum battery in stock for $189 with- I assume free installation- and my dealer has an OEM battery at $190 with $20 installation. I found a 10% off service coupon and had the dealer do the OEM battery install. Easy peasy! Good for another 7 years I hope!

There is no OEM battery sold in USA for Genesis (other than size or specs). The vehicle was made in Korea, and dealers don't stock batteries made in Korea, they just get them domestically. Batteries are very heavy, and shipping cost is too high to do that.

It's a little hard to believe that dealer would sell a H8 or H9 AGM battery for $190, which is what would compare to the AutoZone Platinum.

 

[dadgonebroke]

I haven't looked in the trunk to check but found this-
Hyundai Part No.: 00275-22000
INTERSTATE BATTERY-H8-100AH- LIST PRICE $190.78

 

[Mark_888]

I haven't looked in the trunk to check but found this-
Hyundai Part No.: 00275-22000
INTERSTATE BATTERY-H8-100AH- LIST PRICE $190.78

Yes, Hyundai Motor America buys batteries in the US from Interstate (or whomever) and puts their part number on them and distributes them to Hyundai dealers. What I am saying is that they don't use Interstate batteries at the factory in South Korea.

Interstate is owned by Johnson Controls, which also supplies batteries for many other brands such as AutoZone, Advance Auto Parts, and many others.

I don't know for sure, but would wonder if the INTERSTATE BATTERY-H8-100AH is an AGM battery, as was the Platinum one from AutoZone that you are comparing it to. Based on the price, it seem unlikely. A more fair comparison would be the Gold batteries from AutoZone. In fact, the Interstate battery sold by the dealer may be more like the Silver AutoZone.

If your Genesis is 7 years old, I don't believe the OEM battery was AGM (but the 2nd Generation Genesis starting in MY 2016 and the 2017+ G80 do use AGM as OEM, part number 37110-B1100).

The online price for Hyundai part number 37110-B1100 (AGM battery) is $480.94, but it is probably an H9 battery and not an H8 .

 

[Audio]

Platinum one from AutoZone that you are comparing it to. Based on the price, it seem unlikely. A more fair comparison would be the Gold batteries from AutoZone. In fact, the Interstate battery sold by the dealer may be more like the Silver AutoZone.

*Advance
*Advance
*Advance

Sorry, had to lol. I've shopped at both and worked at Advance in the past, I'm all too familiar with those batteries haha.

EDIT: As I make this correction, I go to AutoZone's site and realize I'M wrong. Their Duralast batteries do the same "platinum" "gold" etc bs. Unoriginal bastards.

 

[Mark_888]

EDIT: As I make this correction, I go to AutoZone's site and realize I'M wrong. Their Duralast batteries do the same "platinum" "gold" etc bs. Unoriginal bastards.

I think it is actually good that both companies use the platinum, gold, silver designation of their batteries, and that platinum are the AGM ones. Why not, since they get them from the same manufacturers?

 

[Audio]

I think it is actually good that both companies use the platinum, gold, silver designation of their batteries, and that platinum are the AGM ones. Why not, since they get them from the same manufacturers?

Now lets standardize the important things like which side the fuel door is on. Those of us with multiple cars would appreciate it. lol

 

[glennk]

First generation used the H8. Second generation uses the H9 AGM. From my investigation, Advance (with coupon) is the best price wise.

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[OlderGuy1stGenesis]

Something to think about from an old auto mechanic.

I observe that many mechanics, especially in the auto parts stores, are under pressure to ''get er done'' in five minutes. They do, and often here is what is wrong: first they do not properly examine the quality of the cable ends and cables. Second, they are in such a hurry, they skip early corrosion on battery terminal posts and surrounding areas and do not take the time to clean then up. (Remember they are under pressure to sell batteries, not service positive and negative battery cables and posts or resulting corrosion on battery posts !

You add haste, and the result is existing corrosion on terminal ends not cleaned up properly, (and these days) up to four additional bolts/plug in connectors, not carefully examined and: problems !

My 2014 Genesis had leaking water. Up to 8 ounces on the bottom where the tire is ! When I disconnected the battery terminal posts, I found: corrosion on the terminal posts on a battery installed 20 months earlier, corrosion on the flat ground end bolted to the tire cavity floor, and because the replacement battery (non Hyundai) had a SMALLER negative post, once I removed it for cleaning, the stock battery cable even when tightened, swung around loosely. I was forced to add 1/2 a battery shim to tighten up the fitting on the negative post.

Do yourselves a favor. Clean the cables and batteries on your own cars yourselves, because I promise you Autozone and Hyundai and K-Mart and your local garage will not !

 

[sidewinder1]

just had my oem battery go without warning and went to sams and they recommend h8 lead acid in their book. brought home (wait to install was long) then checked the manual and it recommends agm. so returned it and bought the platinum h9 agm from advance auto. price is $210 and got it down to $160 after 25% coupon(max $50). costco also shows battery h8 (although agm) so don't go to these warehouse clubs. very heavy battery and same size as the oem and made in germany. be sure to remove the little white plastic cap with a sharp flat head screwdriver to connect the vent tube. also check the date sticker on the battery since the first one they tried to sell me was dated 01/19 which means it was sitting on the shelf for 10 months. asked for another one and it was dated last month 10/19.

 

[OlderGuy1stGenesis]

Dumb questions here. Are these battery replacements you guys are talking about for the front or rear battery? Is the trunk battery ever in need of replacement since the front does most of the work (I think)?

On ''dumb'' questions. The Genesis relocates the traditional battery location to the right rear. Without a rear battery there is no way to run the car. The boost terminals in the front assume a valid battery is in the rear. Boosting the car WITHOUT the rear battery connected would likely damage electronics in the car.

 

[kavisic]

"Older Guy" is correct! There is only one battery and it is located in the trunk (2G-2015 Genesis Sedan). After quite some research, I replaced mine with an AGM from Advance Auto with all of the discounts for buying on-line was much more than reasonable compared to Dealer. It was shipped to my house and I took the car to Advance Auto and they changed it for me without any lost of AV settings or core charge. Of course, this was all done before the original went dead as a precaution. The care was over three years old, I wasn't taking any chances.

 

[Kraig Wilkinson]

"Older Guy" is correct! There is only one battery and it is located in the trunk (2G-2015 Genesis Sedan). After quite some research, I replaced mine with an AGM from Advance Auto with all of the discounts for buying on-line was much more than reasonable compared to Dealer. It was shipped to my house and I took the car to Advance Auto and they changed it for me without any lost of AV settings or core charge. Of course, this was all done before the original went dead as a precaution. The care was over three years old, I wasn't taking any chances.

I purchased an AGM style battery maintainer for my 15, I believe wilthall those computers and electronics it makes a difference with battery life. If the car was being used every day I probably not concern myself with one. Thanks to all for the good info about prices and locations to purchase said battery. This forum is the best!

 

[sidewinder1]

I purchased an AGM style battery maintainer for my 15, I believe wilthall those computers and electronics it makes a difference with battery life. If the car was being used every day I probably not concern myself with one. Thanks to all for the good info about prices and locations to purchase said battery. This forum is the best!

speaking of battery maintainer, i just bought a noco g3500 for $35 shipped from woot.

https://tools.woot.com/offers/noco-multi-purpose-battery-charger

its well reviewed and has a agm mode unlike the battery tender 3amp version that i bought from costco.

 

[kavisic]

I admit I was over cautious.
However, I had a bad experience when the battery on my 2012 Azera went completely dead (without any warning while attending a country retreat-20 miles from any town) after just over two years! Of course the Dealer wouldn't give me any credit on a new one because of Hyundai's two year warranty!

 

[dyoung]

"Older Guy" is correct! There is only one battery and it is located in the trunk (2G-2015 Genesis Sedan). After quite some research, I replaced mine with an AGM from Advance Auto with all of the discounts for buying on-line was much more than reasonable compared to Dealer. It was shipped to my house and I took the car to Advance Auto and they changed it for me without any lost of AV settings or core charge. Of course, this was all done before the original went dead as a precaution. The care was over three years old, I wasn't taking any chances.

Did your battery have the vent tube? I took my 2015 Genesis Sedan to Advance Auto and the guy said that they weren't allowed to install trunk batteries because it would void the Warranty. I needed to have it installed by a mechanic because if the vent tube isn't installed correctly then there could be issues. I've seen videos of people replacing that vent tube. Is it so difficult?

 

[arcman]

What nonsense. Where do people come up with that? That'd be like saying you need a doctor to wipe your butt.

If you can unbolt and lift out the battery, you can unhook and reattach the vent tube. There's a stub that's on the top edge of the battery that you pull the vent hose off and just stick it back on the new one.

 

[kocyk123]

Totally agree with arcman. I just recently replaced mine on the parking lot of Autozone when it was dark and used my phone as a flashlight. Easy and quick project. Plastic tube adapter is plug and play. Simply pull it from old battery and add it to the new one. That is it.