Strange battery draining

[John MYLR]

Model Y LR, delivered on 6/21.

Battery was charged to 80% overnight. Today I drove 42.6 mils, used 10 kWh with 235 Wh/mi. However the battery percentage dropped from 80% to 60%. Is there a bug in calculation battery percentage? Otherwise, a 100% charge can only last 210 miles, or in other words, the battery pack in my Model Y LR is only 50 kWh? Unless my math is wrong.

 

[jjrandorin]

Model Y LR, delivered on 6/21.

Battery was charged to 80% overnight. Today I drove 42.6 mils, used 10 kWh with 235 Wh/mi. However the battery percentage dropped from 80% to 60%. Is there a bug in calculation battery percentage? Otherwise, a 100% charge can only last 210 miles, or in other words, the battery pack in my Model Y LR is only 50 kWh? Unless my math is wrong.

First, calculate your battery capacity, using the information on the screen, by following the information in this thread:

Calculating Your Battery's Estimated Capacity Using the Car's Energy Screen

Re posting here and making this a sticky post so it doesnt get lost. @AlanSubie4Life originally posted: =========================================== (originally posted by @AlanSubie4Life. Original thread this appeared in can be found here: ( 2021 model Y scan my Tesla battery size)...

teslamotorsclub.com

You will find that your car does not have a "50kWh battery pack", I guarantee that.

Second, energy used for things other than driving are not captured in the cars Wh/Mi figure.

If you want to "deep dive" on this (I dont recommend it but some people love to), you can peruse this 165 page (not 165 posts, 165 pages of posts) thread on this same basic topic (of battery range, why dont I get my rated miles, etc) here:

Range Loss Over Time, What Can Be Expected, Efficiency, How to Maintain Battery Health

270 @ 100% long range, 19' wheels 10k miles only supercharged few times. Ouch....

teslamotorsclub.com

 

[John MYLR]

Thanks.

The battery percentage estimate is really misleading.