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      11-18-2021, 03:37 PM   #1
ggalanis
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Canada
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Drives: 2023 iX 50, 1989 325ic
Join Date: Jan 2016
Location: Montreal

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Warranty against battery degradation

I've been looking around for details about what BMW would offer in terms of warranty for battery degradation but can't seem to find anything specific. I do plan on asking my dealer to get me this information if they can once I place my reservation (probably in the next couple of weeks).

I understand that some battery degradation is normal. But at what point does it become abnormal and would warrant a repair/replacement? 5%? 10%? 13.7%?

The way I see it there are 3 things that I as an owner would possibly experience as the battery degrades.
- Useable capacity of the battery in kWh may drop
- Charging speeds may be slowed down for a given state of charge and battery temperature
- The max amount of power the motors can pull from the battery pack may go down

Does anyone already have details/links as to if/how these measures are guaranteed by BMW?
Appreciate 0