Battery discharge warning...

[Alwaysforward]

Does these batteries require any special why to jump start them?

 

[guybo]

AGM batteries are expensive, you can use a regular, cheaper, battery but it won't last as long. IME when a car calls for AGM and you put in a regular battery it eats them up within 2-3 years.

You don't jump start a battery, you jump start a car (sorry to be pedantic) and you jump start a car with an AGM battery just as you would any other car. But to charge an AGM battery it's different from a regular lead acid battery.

 

[scottdk]

What about using a battery maintainer on an AGM battery? I've used one every winter for years on my '09 and I still have the original battery that works great. Should I be using a special battery tender?

 

[Midnightsun]

Battery tender is fine on an AGM. Personally i have quite a bit of experience experimenting with large battery banks on boats. AGM are not exactly prime time yet and do offer some chalenges when it come to longevity. They can endure deeper discharges better than lead acid and can crank out some serious amps but my experience is a good ole lead acid outlast an AGM any day unless you go with something like this but the $ get up there rather quickly. http://www.odysseybatteries.com/batteries/pc2150mst.htm AGM is great but do not expect to get a good one for less than $200.

 

[guybo]

A battery tender is meant to maintain the charge that the battery has by providing enough power to the car to power the vampiric drains on the battery. A good battery over short periods can deal with vampiric drains just fine but over longer periods they can't so a tender is a great way to keep the battery charged up. So hooking one up to a AGM battery doesn't matter, as it is not charging the battery

 

[Midnightsun]

A battery tender is meant to maintain the charge that the battery has by providing enough power to the car to power the vampiric drains on the battery. A good battery over short periods can deal with vampiric drains just fine but over longer periods they can't so a tender is a great way to keep the battery charged up. So hooking one up to a AGM battery doesn't matter, as it is not charging the battery

Battery Tender is just a brand name. They are called battery maintainers and are really just lower output smart chargers, generally about 1-2amp. They do in fact charge your battery at a bulk charge rate of 14.? volts and will bring a low battery back to full charge just that it takes quite a bit more time dur to the low output. The electronics inside detect when the battery is full and taper off until finally going to a float charge of about 13.2v as to not over charge and ruin the battery. They come in large and small output but in general "battery maintainers" are 1-2 amp. Getting into larger units they call them smart chargers with the only difference being the amount of amps they are capable of when bulk charging and the better ones have a 3-4 stage charge compared to the "maintainers" typical 2 stage. Run of the mill home units are 10-40amps. Bottom line is once any of these units go into float mode they are all doing exactly the same thing regardless if it is a 40 amp charger, a battery tender or a battery maintainer.

 

[Canuck-Ottawa]

What frosts me are the posts that I see stating that such-and-such, whatever that might be, is great because BMW or Mercedes does something like this. Yeah. right.

If you do the research, you'll see why I posted this.

 

[FIREMANMIKE]

Just for your info
Replacement cost on that battery retails for $282 Not Cheap...internet price $217 Hyundai part # 371103M00

Don't know if there is a difference, but today I was told I needed a new battery, all just for the low price of $275 + labor. I checked with their service manager, who gave me the batteries part number and brand. I bought an Interstate battery, P/N 00275-22000 (matches P/N I got from this forum, 37110-3M300, which Interstate dealer said was the same) for the low price of $135, and $15 off when I bring them the core. I refused to pay that ripoff price!!!

 

[Mark_888]

Don't know if there is a difference, but today I was told I needed a new battery, all just for the low price of $275 + labor. I checked with their service manager, who gave me the batteries part number and brand. I bought an Interstate battery, P/N 00275-22000 (matches P/N I got from this forum, 37110-3M300, which Interstate dealer said was the same) for the low price of $135, and $15 off when I bring them the core. I refused to pay that ripoff price!!!

It is not unusual for dealers to charge high prices for that sort of thing. This site that sells Hyundai OEM parts online charges $134.78 for the Interstate battery. The site is run by Delray Acura & Hyundai, in Delray Florida.
http://www.hyundaioemparts.com/oe-hyundai/0027522000

 

[Mark_888]

What about using a battery maintainer on an AGM battery? I've used one every winter for years on my '09 and I still have the original battery that works great. Should I be using a special battery tender?

I don't believe that the 2009 used an AGM battery. Not sure when they switched over.

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[Mark_888]

AGM are not exactly prime time yet and do offer some chalenges when it come to longevity. They can endure deeper discharges better than lead acid and can crank out some serious amps but my experience is a good ole lead acid outlast an AGM any day unless you go with something like this but the $ get up there rather quickly. http://www.odysseybatteries.com/batteries/pc2150mst.htm AGM is great but do not expect to get a good one for less than $200.

I noticed that on warranties for replacement batteries, that the AGM versions have a shorter warranty than the best lead-acid batteries. My 2009 Genesis came with a an OEM lead-acid battery.

For example, at AutoZone:

Duralast Part Number: H8-AGM
Warranty: 3 YR
900 Cold cranking amps
$174.99

Duralast Part Number: H8-DLG
Warranty: 5 YR
900 Cold cranking Amps
$159.99

 

[scottdk]

I don't believe that the 2009 used an AGM battery. Not sure when they switched over.

I actually just took my car to Interstate to have the battery checked in my Genesis since the battery is from 2008. They said it was an AGM battery and that it still had all 600 CCA's The rep said "you get what you pay for, and that's why your battery is still near perfect." In other words AGM battery cost more, especially for cars with batteries in the trunk, but is a better all around battery vs lead acid, which is why it still tests out great. especially for cars with batteries in the trunk. Either way, Interstate said they have lead acid battery or an AGM when it's time to replace mine.

 

[Mark_888]

I actually just took my car to Interstate to have the battery checked in my Genesis since the battery is from 2008. They said it was an AMG battery and that it still had all 600 CCA's The rep said "you get what you pay for, and that's why your battery is still near perfect." In other words AGM battery cost more, especially for cars with batteries in the trunk, but is a better all around battery vs lead acid, which is why it still tests out great. especially for cars with batteries in the trunk. Either way, Interstate said they have lead acid battery or an AGM when it's time to replace mine.

I still have my OEM battery in my 2009. I don't think it is AGM, but not sure. But mine is V6, without Tech Package.

 

[lobsenza]

Batteries in the trunk typically last longer than those under the hood. The reason is that the batteries are not exposed to the heat of the engine compartment.

 

[scottdk]

Batteries in the trunk typically last longer than those under the hood. The reason is that the batteries are not exposed to the heat of the engine compartment.

+1 - Interstate also mentioned cars that have a trunk mounted battery can't vent like lead acid batteries under the hood, which is why an AGM battery is used, but I thought I recall a thread years ago that talked about batteries in our trunk having a vent tube out the bottom......

 

[srobak]

I was looking in the trunk of my G2 yesterday and noticed a clear/white-ish tube near the side of the battery closest to the back seat. I figured it was for venting - especially since my car doesn't smell like bandaids like the Prius does from the battery venting into the passenger cabin.

 

[kn5owa]

I was looking in the trunk of my G2 yesterday and noticed a clear/white-ish tube near the side of the battery closest to the back seat. I figured it was for venting - especially since my car doesn't smell like bandaids like the Prius does from the battery venting into the passenger cabin.

My 2015 Genny V8 manual says:

P. 7-43 Remove battery when charging said battery.

p. 5-9 Wear appropriate shoes when driving the car.

I just love car manuals.

 

[Mark_888]

My 2015 Genny V8 says:

P. 7-43 Remove battery when charging said battery.

p. 5-9 Wear appropriate shoes when driving the car.

I just love car manuals.

Language added by lawyers. There have been some instances of batteries exploding when being charged in a confined space. I am sure such events are rare, but you know how lawyers are.

 

[kn5owa]

Language added by lawyers. There have been some instances of batteries exploding when being charged in a confined space. I am sure such events are rare, but you know how lawyers are.

To be truthful about it, the last time I saw a battery actually foaming, bubbling, frothing, or otherwise while being charged, it was maybe in the 1950's when used car dealers kept big chargers handy for zapping dead batteries on old cars (or selling used cars).

We're talking about the old 100-150 amp. walk-around chargers.

The little trickle chargers, the Walmart 5-10-15 amp. smart chargers, etc. I don't think you're gonna blow the old trunk sky high!!.

But let us know if you do.

 

[Mark_888]

To be truthful about it, the last time I saw a battery actually foaming, bubbling, frothing, or otherwise while being charged, it was maybe in the 1950's when used car dealers kept big chargers handy for zapping dead batteries on old cars (or selling used cars).

We're talking about the old 100-150 amp. walk-around chargers.

The little trickle chargers, the Walmart 5-10-15 amp. smart chargers, etc. I don't think you're gonna blow the old trunk sky high!!.

But let us know if you do.

I am not going to spend a lot of time trying to find more recent stats, but I quickly found this on the internet:

"Indeed, a study by the National Highway Traffic Safety Administration found that battery explosions in 1993 alone injured 2,280 people severely enough to have required hospital treatment."​

Lawyers calculate the potential cost of one lawsuit versus the cost of including the warning in the owner's manual (which pretty much has a zero cost), so it ends up in the owner's manual. That was my only point.