Do you have to "register" a new battery?

[TomF]

I have a 2013 Genesis that recently had a battery failure. Physical replacement seems easy enough, but does a new battery have to be "registered"? The local dealer, of course, said I'd need to bring it in and have them do their "special service" at the cost of $129. He didn't go into details on what specifically that included...I install the new battery and take it to them to do their thing for $129.

Google search doesn't show anything regarding a Genesis requiring a new battery registration...just alot of BMW owners who had to have it done.

Another question - any problem with putting in an AGM? Any issues with the charging parameters? The dealer warned that AGMs should to be charged differently than a "standard" battery, if your vehicle originally came with a standard battery and you replace it with an AGM, you will severely shorten the life of your expensive AGM.

Any knowledge/help/advice would be greatly appreciated.

 

[EdP]

I have a 2013 Genesis that recently had a battery failure. Physical replacement seems easy enough, but does a new battery have to be "registered"? The local dealer, of course, said I'd need to bring it in and have them do their "special service" at the cost of $129. He didn't go into details on what specifically that included...I install the new battery and take it to them to do their thing for $129.

Google search doesn't show anything regarding a Genesis requiring a new battery registration...just alot of BMW owners who had to have it done.

Another question - any problem with putting in an AGM? Any issues with the charging parameters? The dealer warned that AGMs should to be charged differently than a "standard" battery, if your vehicle originally came with a standard battery and you replace it with an AGM, you will severely shorten the life of your expensive AGM.

Any knowledge/help/advice would be greatly appreciated.

I'm not an expert but after reading this, I'd stick with a standard battery.
Three Misconceptions about AGM batteries | KnowYourParts

 

[TomF]

Thanks for the link.

The third misconception sums up what I'm searching for:
- "some vehicles require an extra step to tell the vehicle that the battery has been replaced. "
- "...require recalibration with a scan tool if the battery is replaced "

Does this have to be addressed when replacing the battery in a 2013 Genesis?

 

[Rodney Dangerfield]

Good question, I'm not one to take my car to a mechanic and definitely not the dealer if I can avoid it. Changing a battery is a pretty easy thing to do unless there's some odd step required to hook a computer up to it so as not to throw codes.

 

[joegr]

In the case of BMW at least, it's not about "throwing codes." Battery registration tells the car the battery's type, capacity, and that it is new. It uses that information to adjust when the alternator runs to charge it (this is all in the pursuit of that last 0.1 MPG). The car derates the battery as it ages, so it needs to know when it has a new one. Without registration, the new battery might be under or over charged, shortening its life.

It's certainly possible that Hyundai/Genesis "guesses" more at battery charging and doesn't need registration. I don't know.

 

[Rodney Dangerfield]

In the case of BMW at least, it's not about "throwing codes." Battery registration tells the car the battery's type, capacity, and that it is new. It uses that information to adjust when the alternator runs to charge it (this is all in the pursuit of that last 0.1 MPG). The car derates the battery as it ages, so it needs to know when it has a new one. Without registration, the new battery might be under or over charged, shortening its life.

It's certainly possible that Hyundai/Genesis "guesses" more at battery charging and doesn't need registration. I don't know.

Uh, the alternator is always running while the engine is running. It's not like the A/C compressor which can turn off and on as needed.

 

[joegr]

Uh, the alternator is always running while the engine is running. It's not like the A/C compressor which can turn off and on as needed.

Not true. Look it up. The alternator is always turning, but there is a control circuit that determines if it is operating (as in producing electrical power). The mechanical load on the engine from the alternator is proportional to how much power it is producing, so cutting the power production off greatly reduces the load on the engine from the alternator, thereby ever so slightly reducing gas consumption.
Note that even much older cars have the control. In their case, it only reduced the alternators output to keep it from going over a maximum battery charging voltage. This was not for mileage, but just to keep the battery from being cooked or from exploding.
Newer cars (many/most/all?) now have a computer that also stops the alternator from charging if the the car is not decelerating and the battery is over xx% charged. (This is the simple version, it is a little more complicated than this though.)

 

[EdP]

Uh, the alternator is always running while the engine is running. It's not like the A/C compressor which can turn off and on as needed.

Well it is always turning. Alternators have a lot of electronics in them and they talk to the main computer. It will take more power to turn as the output increases. Thus id does affect the mpg

I found this:
An alternator typically takes about 1 HP (horse power) for every 25 amps of power generated. So, a 100 amp alternator will require about 4 HP at full output. Most alternators do not operate at full output for very long.

 

[Kraig Wilkinson]

I'm not an expert but after reading this, I'd stick with a standard battery.
Three Misconceptions about AGM batteries | KnowYourParts

I always look forward to reading tour post EdP! You are a pleather of knowledge and wisdom!

I'm not an expert but after reading this, I'd stick with a standard battery.
Three Misconceptions about AGM batteries | KnowYourParts

 

[EdP]

I always look forward to reading tour post EdP! You are a pleather of knowledge and wisdom!

Thank you. I'm just curious and you guys are the ones making me find answers. I just share it.

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[joegr]

A little more detail on it...
BMW Introduces Intelligent Alternator Control with Regenerative Braking; Reduces Fuel Consumption by About 4%

 

[Rodney Dangerfield]

A little more detail on it...
BMW Introduces Intelligent Alternator Control with Regenerative Braking; Reduces Fuel Consumption by About 4%

Well that sounds typical of German auto engineering...complicated and extremely expensive when it breaks (and it will break).

 

[shahhere]

Well it is always turning. Alternators have a lot of electronics in them and they talk to the main computer. It will take more power to turn as the output increases. Thus id does affect the mpg

I found this:
An alternator typically takes about 1 HP (horse power) for every 25 amps of power generated. So, a 100 amp alternator will require about 4 HP at full output. Most alternators do not operate at full output for very long.

I put in a new battery 4 weeks back so should I be concerned as its an AGM from Pepboys??

Shahhere

 

[MrMegadeth]

Well that sounds typical of German auto engineering...complicated and extremely expensive when it breaks (and it will break).

Mazda has had the same thing for many years: MAZDA: Brake Energy Regeneration System | Environmental Technology