Replacement battery $2500!
Pro
Joined: Oct 2019
Posts: 615
Likes: 404
From: Hawaii
It seems unreasonable to have to put the car on a trickle charger if you are not going to be driving it for a day or two.
What are you supposed to do if you go on a trip and leave it at the airport?
I could see 2-3 weeks or so. But a few days? Or even trickle charge it every day?
What are you supposed to do if you go on a trip and leave it at the airport?
I could see 2-3 weeks or so. But a few days? Or even trickle charge it every day?
Rennlist Member
Joined: Sep 2019
Posts: 563
Likes: 516
My experience is 2 to 3 weeks is fine, 2 months … and you should definitely be on battery tender. There is no harm in always plugging in. I suspect dealership may help with warranty coverage , but some members here are making assertions that it has to be covered and you should lawyer up. The fastest way to get nowhere is to threaten your dealership with lawyers.
Banned
Joined: Jul 2020
Posts: 4,026
Likes: 2,267
My experience is 2 to 3 weeks is fine, 2 months … and you should definitely be on battery tender. There is no harm in always plugging in. I suspect dealership may help with warranty coverage , but some members here are making assertions that it has to be covered and you should lawyer up. The fastest way to get nowhere is to threaten your dealership with lawyers.
The progression should look something like this;
(1) So far, all of I’ve seen on here are Porsche’s “recommendations” on how to avoid a depleted battery. Nevertheless, if the dealership is insistent that the battery warranty is voided, have the dealership show you specifically, in the warranty, where it says the battery warranty is voided if not driven 6K miles per year, or whatever? If they can’t, and the dealership won’t cover the cost of a new battery, then…
(2) Call Porsche of North America to get further assistance. If that goes nowhere, and they too can not show the clause that stipulates the conditions under which the battery warranty is voided, then…
(3) Contact a lawyer, as I would be willing to bet that, at the bare minimum, the 4 year/50K mile, bumper to bumper, warranty applies to the battery and considered part of the car’s electrical system….and matters not whether you keep it fully charged, or not.
There are numerous examples/reasons why someone might not be able to put their battery on a battery tender, or even drive their car every month..that has nothing to do with owner negligence.
Finally, pretty sure the LiPO4 battery has protective circuitry that disconnects the battery from the car’s electronic systems, when the charge level drops to about 10% of capacity. That is all part of the battery. So while you won’t be able to start the car at such a low capacity, the battery is not damaged, and is protected from depleting further. If it were to drop below 10%, that strongly suggests something is wrong with the battery (ie, internal short)….and that’s no different than a defective component covered under warranty.
Last edited by CodyBigdog; Feb 25, 2022 at 01:37 AM.
Rennlist Member
Joined: Sep 2019
Posts: 563
Likes: 516
Can the OP comment on whether or not a battery tender was used?
BigDog, the cut-off protection circuit is not any guarantee that the battery will re-take a charge if it has been run low for a long period of time.
The mileage on the car is not enough to maintain the battery based on the documented guidelines. I am not a consumer protection lawyer, I just go by what the guidelines say.
We can argue until we are blue in the face over what Porsche and the dealership can prove or not prove.
You could not change your engine oil for 3 years, and then complain that your engine fault should be warranty too.
Maybe Porsche should communicate the battery tender requirements for a car with this much technology , my dealership gave me a battery tender on delivery.
I maintain a constructive and polite attitude is much more likely to get progress than mentioning the “lawyer” word.
BigDog, the cut-off protection circuit is not any guarantee that the battery will re-take a charge if it has been run low for a long period of time.
The mileage on the car is not enough to maintain the battery based on the documented guidelines. I am not a consumer protection lawyer, I just go by what the guidelines say.
We can argue until we are blue in the face over what Porsche and the dealership can prove or not prove.
You could not change your engine oil for 3 years, and then complain that your engine fault should be warranty too.
Maybe Porsche should communicate the battery tender requirements for a car with this much technology , my dealership gave me a battery tender on delivery.
I maintain a constructive and polite attitude is much more likely to get progress than mentioning the “lawyer” word.
Banned
Joined: Jul 2020
Posts: 4,026
Likes: 2,267
“1)Almost all LiIon/LiPoly batteries have a protection chip inside them that no-longer lets the battery power devices when the Cells voltage reach a certain level. The most common cut-off voltage is 2.8V but can be much higher in certain applications.
2) Even after the protection chip cuts the cell off due to low voltage the CELL will continue to discharge at ~1-10uA. As a result eventually the CELL's voltage can reach 0V if not charged.
** 3) Unknown to most is that if the cell reaches 0V it CAN be recharged.”
{One of the advantages of li batteries…they can be discharged to zero and still be recharged/function..although some capacity may be lost}
The mileage on the car is not enough to maintain the battery based on the documented guidelines. I am not a consumer protection lawyer, I just go by what the guidelines say.
You could not change your engine oil for 3 years, and then complain that your engine fault should be warranty too.
Maybe Porsche should communicate the battery tender requirements for a car with this much technology , my dealership gave me a battery tender on delivery.
I maintain a constructive and polite attitude is much more likely to get progress than mentioning the “lawyer” word.
Last edited by CodyBigdog; Feb 25, 2022 at 02:09 AM.
Pro
Joined: Oct 2020
Posts: 677
Likes: 293
I would think that it also depends on what the underlying issue is? If it's due to not driving enough/charging and battery has died, I can see the 6000 mile clause kicking in. But if due to other defect, I would think it should be covered regardless of mileage (e.g. my 2016 Golf R had battery replaced under warranty due to faulty cells which is a known issue)
Rennlist Member
Joined: Feb 2009
Posts: 5,333
Likes: 3,741
From: Newport Beach, CA and Melbourne, Australia
I regularly leave my cars for weeks at a time, never had an issue starting any of my Porsches afterwards including this 992. I recall my last 997 would go to sleep after a few days and you needed to put the key into the ignition within a few seconds of unlocking it to wake it up. After a while you also needed to use the key to open the door, the remote access also went to sleep. But it always started 1st time.
Nordschleife Master
Joined: May 2014
Posts: 5,449
Likes: 2,331
I think we can all agree plugit up to reduce the risk. My 2019 GT3RS, my track days got limited due to many other commitments so I did leave it parked for several months and never thought to use a tender. However, I did take it out for 30-45 minute drives to allow the battery to charge. By the way if anyone does this one of the worse things to do is start the car, and let it idle which actually drives more battery degradation. The charger will just prolong the life, and as I said in a earlier post my 675LT meter is at 97% life ………not sure the 992’s tell you the % of battery life as I know my Speedster doesn’t. It’s really a good feature because you’re being alerted when you use the car, and allows you to act.
Last edited by Maverick787; Feb 25, 2022 at 09:12 AM.
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
Every Era of 911 Owner Explained in One Sentence
Verdad Gallardo
Thinking of Buying a Porsche? Do These 10 Things First
Joe Kucinski
Pixar Pals Turned Into 1-of-1 Porsches!
Michael S. Palmer
Theon Goes Full Carbon Fiber With Stunning New Build
Verdad Gallardo
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile
Joe Kucinski
10 Used Porsches Are Selling for Way Too Cheap
Joe Kucinski
Tuner Is Converting Porsche 911s Into Shooting Brakes
Verdad Gallardo
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917
Verdad Gallardo
Is This Convertible Cayenne A Steal, Or A Returnless Investment?
Verdad Gallardo
Nordschleife Master
Joined: May 2014
Posts: 5,449
Likes: 2,331
I regularly leave my cars for weeks at a time, never had an issue starting any of my Porsches afterwards including this 992. I recall my last 997 would go to sleep after a few days and you needed to put the key into the ignition within a few seconds of unlocking it to wake it up. After a while you also needed to use the key to open the door, the remote access also went to sleep. But it always started 1st time.
Instructor
Joined: Aug 2020
Posts: 135
Likes: 147
Coolwnc- Thanks for starting this discussion. The many constructive comments opened my eyes to potential 992 battery issues. My car has RAS, and apparently, a battery susceptible to leaving me stranded.
I have noticed a PCM message saying, in effect, "turn your radio off to avoid battery damage" when sitting in the vehicle with the ignition off and the radio on. I get the same general message in my wife's Macan Turbo. (I wonder if the Macan has the same battery issues?)
I will call the dealer and order a battery charger today. In my brief time on this board, this is the first post causing me to take action concerning my car.
Thanks again for kicking this anthill, Coolwnc.
I have noticed a PCM message saying, in effect, "turn your radio off to avoid battery damage" when sitting in the vehicle with the ignition off and the radio on. I get the same general message in my wife's Macan Turbo. (I wonder if the Macan has the same battery issues?)
I will call the dealer and order a battery charger today. In my brief time on this board, this is the first post causing me to take action concerning my car.
Thanks again for kicking this anthill, Coolwnc.
Nordschleife Master
Joined: May 2014
Posts: 5,449
Likes: 2,331
Coolwnc- Thanks for starting this discussion. The many constructive comments opened my eyes to potential 992 battery issues. My car has RAS, and apparently, a battery susceptible to leaving me stranded.
I have noticed a PCM message saying, in effect, "turn your radio off to avoid battery damage" when sitting in the vehicle with the ignition off and the radio on. I get the same general message in my wife's Macan Turbo. (I wonder if the Macan has the same battery issues?)
I will call the dealer and order a battery charger today. In my brief time on this board, this is the first post causing me to take action concerning my car.
Thanks again for kicking this anthill, Coolwnc.
I have noticed a PCM message saying, in effect, "turn your radio off to avoid battery damage" when sitting in the vehicle with the ignition off and the radio on. I get the same general message in my wife's Macan Turbo. (I wonder if the Macan has the same battery issues?)
I will call the dealer and order a battery charger today. In my brief time on this board, this is the first post causing me to take action concerning my car.
Thanks again for kicking this anthill, Coolwnc.
https://www.suncoastparts.com/
https://www.suncoastparts.com/product/CHARGER2.html
Last edited by Maverick787; Feb 25, 2022 at 09:38 AM.
Burning Brakes
Joined: Apr 2019
Posts: 823
Likes: 1,224
From: Iowa City, Iowa - Go Hawks
Coolwnc- Thanks for starting this discussion. The many constructive comments opened my eyes to potential 992 battery issues. My car has RAS, and apparently, a battery susceptible to leaving me stranded.
I have noticed a PCM message saying, in effect, "turn your radio off to avoid battery damage" when sitting in the vehicle with the ignition off and the radio on. I get the same general message in my wife's Macan Turbo. (I wonder if the Macan has the same battery issues?)
I will call the dealer and order a battery charger today. In my brief time on this board, this is the first post causing me to take action concerning my car.
Thanks again for kicking this anthill, Coolwnc.
I have noticed a PCM message saying, in effect, "turn your radio off to avoid battery damage" when sitting in the vehicle with the ignition off and the radio on. I get the same general message in my wife's Macan Turbo. (I wonder if the Macan has the same battery issues?)
I will call the dealer and order a battery charger today. In my brief time on this board, this is the first post causing me to take action concerning my car.
Thanks again for kicking this anthill, Coolwnc.
Nordschleife Master
Joined: May 2014
Posts: 5,449
Likes: 2,331
I’d actually spend the extra 20.00 to 30.00 dollars if that’s the number because it’s a certified Porsche product. Not worth the hassle if you have a problem being told it’s not their product, and you got if from Amazon which can send you weird stuff at times.
Burning Brakes
Joined: Apr 2019
Posts: 823
Likes: 1,224
From: Iowa City, Iowa - Go Hawks
Sure - but to be honest, the differential is more like $100. Not that big a deal - or, a waste of money depending on your perspective. Have a good one.
Nordschleife Master
Joined: May 2014
Posts: 5,449
Likes: 2,331
I agree, my POV only may not be worth the argument if something fails and they blame the charger. Amazon has pricing from 100-150 and a slew of products, sorry I just don’t trust manufacturers when they what to blame the customer for some electrical problem.
