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Is 3% battery degradation a lot for the Tesla Model 3 LR RWD


  • Total voters
    54

Falcon3

Member
Apr 3, 2018
267
136
Canada
Car specs: Model 3 LR RWD with 42,000km/26,000 miles after 1 year 4 months.

Situation: I've been driving and charging the vehicle to 90% every night. Last couple of days I noticed that the car only charge to 87% now. 3% degradation seems high for 1 year use.

Questions:
1) Are any other owners experiencing a similar situation?
2)Do I need to re-calibrate the battery?
3)Should I contact Tesla?
 

KenC

Active Member
Sep 4, 2018
3,766
3,498
Maine
Car specs: Model 3 LR RWD with 42,000km/26,000 miles after 1 year 4 months.

Situation: I've been driving and charging the vehicle to 90% every night. Last couple of days I noticed that the car only charge to 87% now. 3% degradation seems high for 1 year use.

Questions:
1) Are any other owners experiencing a similar situation?
2)Do I need to re-calibrate the battery?
3)Should I contact Tesla?
I'm not even sure I understand your "situation"? You've set your car to charge to 90%, and it doesn't? It stops at 87%?
 

Joshan

Member
Jan 8, 2019
517
927
Chicago
just want to point out that if you are gauging your battery degradation on the miles listed in the GUI when charging, that will not be an accurate way to assess degradation.

Stating this, as in the end this is how most people are measuring battery health.
 

Falcon3

Member
Apr 3, 2018
267
136
Canada
My take is that your adjustable charge level bar is off by ‘1 click’. The % should never change, only the indicated range at a specified %.
Is there anyway to re-calibrate? What I read from the other threads is to discharge to 5% and fully charge to 100%.
 

AlanSubie4Life

Efficiency Obsessed Member
Oct 22, 2018
10,924
13,714
San Diego
Is there anyway to re-calibrate? What I read from the other threads is to discharge to 5% and fully charge to 100%.

Move the slider again in the car or in the app until it "snaps" to the 90% level. And try again.

This issue has nothing to do with capacity loss - in fact there is no way for you to easily gauge capacity loss when you use % as you are doing. Which is fine.

Defective batteries will sometimes refuse to charge to 100% but that will give you an error message saying so and that is pretty rare (so very unlikely to be your issue here).
 
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Reactions: 03DSG and Falcon3

Nostromo

Member
Aug 20, 2019
29
31
San Diego, CA
Funny thing, just the other day I charged my car to 80%, slider was on that mark. But when the car stopped charging it showed charge of 83%! I had recently taken it down to near zero (1% I think) so it may have recently recalibrated. I’m not sure if this means I lost range or gained it, but apparently the slider stops can get confused.
 

Falcon3

Member
Apr 3, 2018
267
136
Canada
Move the slider again in the car or in the app until it "snaps" to the 90% level. And try again.

This issue has nothing to do with capacity loss - in fact there is no way for you to easily gauge capacity loss when you use % as you are doing. Which is fine.

Defective batteries will sometimes refuse to charge to 100% but that will give you an error message saying so and that is pretty rare (so very unlikely to be your issue here).
I slid the battery bar down and back to 90% stop and today, it charged to 90%. Seems like this fixed the issue. Many thanks for your helpful insight!
 

pscarroll

Member
Sep 28, 2018
362
485
East Coast, USA
Tesla Model 3 Performance here, had delivery in early October 2018, approximately 66% of total charges on Tesla DC Superchargers (yay for lifetime free supercharging) with other 33% of charges using 120/240V AC where I almost always charge to 90% though sometimes to 100% if I'm taking a long trip. Per Teslafi I've had somewhere between 2.84%-3.08% degradation after driving 43,625.87 Miles. (Note: I didn't start using TeslaFi until 12/08/2018 at 5,788.28 miles)

High Range vs. Low Range
High RangeLow Range Range Loss Percent Loss
310.8 301.52 9.28 3.08 %
High Range vs. Current Range
High Range Current Range Range Loss Percent Loss
310.8 302.23 8.57 2.84 %
Starting Range vs. Current Range
Starting Range Current Range Range Loss Percent Loss
305.84 302.23 3.61 1.19 %
FusionCharts.png
 
Last edited:

KenC

Active Member
Sep 4, 2018
3,766
3,498
Maine
Tesla Model 3 Performance here, had delivery in early October 2018, approximately 66% of total charges on Tesla DC Superchargers (yay for lifetime free supercharging) with other 33% of charges using 120/240V AC where I almost always charge to 90% though sometimes to 100% if I'm taking a long trip. Per Teslafi I've had somewhere between 2.84%-3.08% degradation after driving 43,625.87 Miles. (Note: I didn't start using TeslaFi until 12/08/2018 at 5,788.28 miles)

High Range vs. Low Range
High RangeLow Range Range Loss Percent Loss
310.8 301.52 9.28 3.08 %
High Range vs. Current Range
High Range Current Range Range Loss Percent Loss
310.8 302.23 8.57 2.84 %
Starting Range vs. Current Range
Starting Range Current Range Range Loss Percent Loss
305.84 302.23 3.61 1.19 %
View attachment 469349
For almost 44k miles, and charging to 90% and 2/3rd on SC, 2.5% degradation is pretty excellent.
 

xilex

Model P3D
Jul 5, 2018
354
209
Cypress, CA
I've supercharged about 300 kWh over the past 7 days. I noticed I lost about 2.5 miles at 90% charge (I keep the indicator on miles instead of %), whatever that means, but whatever, it's not like I'm going to drive it down to the last 10 miles.
 

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