2021 Model 3 Main Battery Failure BMS_a066

[jaqueh]

I’ve always noticed my range seems to reduce like 5% every 10k miles which to my understanding is worse than what everyone either here or Reddit reports. Well, just yesterday I got the dreaded or maybe hopeful message that I’ll get a new batt soon. Service scheduled for next Saturday.

2021 lr with the older 75kwh/72kwh usable battery. 55k miles. Supercharged a lot in the first 25k miles before getting a charger at home. Just got this message. Does this guarantee a new battery? I’m hoping to get the 78kwh if so. Anyone been through this? I pretty consistently had 10% degradation, and then all of a sudden a month ago I am around 20% degradation. I would love a refurbed battery.

 

[Kimmi]

Call Tesla when it gets to 30%.

 

[MP3Mike]

Does this guarantee a new battery?

No, you must likely get a refurbished battery.

 

[jaqueh]

Call Tesla when it gets to 30%.

i already have service and free battery replacement confirmed. will be selling the car once the battery warranty is up

 

[jaqueh]

Battery replaced! I went from max 320 miles before bms error to it looks like around 330 miles!

 

[Rocky_H]

Call Tesla when it gets to 30%.

It already threw an error code. This wasn't about degradation %.

 

[DownshiftDre]

Battery replaced! I went from max 320 miles before bms error to it looks like around 330 miles!

Great news. Is a new battery one that would show 358?

Possible your range may calibrate up some more?

Keep us updated.

Everybody worries about the 30% degradation and what kind of battery they would get under warranty. Unlikely anybody will hit that degradation threshold. I worry more about a hard failure with a error code like you experienced and just getting a battery that is similar. Glad they got you up and running again. And a more refreshed battery than what you had is icing on the cake.

 

[jaqueh]

Great news. Is a new battery one that would show 358?

Possible your range may calibrate up some more?

Keep us updated.

Everybody worries about the 30% degradation and what kind of battery they would get under warranty. Unlikely anybody will hit that degradation threshold. I worry more about a hard failure with a error code like you experienced and just getting a battery that is similar. Glad they got you up and running again. And a more refreshed battery than what you had is icing on the cake.

Mine is the weird one where the battery is the same as the old lrs but the heat pump let Tesla inflate the numbers a bit. So new is 353 miles

 

[karlos22]

i already have service and free battery replacement confirmed. will be selling the car once the battery warranty is up

Why? You had bad luck but battery failures are extremely rare and high rates of degradation unlikely unless you really abuse the battery. You will be fine.