Self charging Tesla??

[FloridaSun]

So, yesterday, I charged my Y on a free Destination Charger in my town. Car was at 81% (also confirmed this with Tezlab which keeps track) when I left. Drove home and arrived at 80% at my home. I did NOT plug in the car at home. So, this morning, I wake up and the SoC is 82%. I would assume that this is the BMS calibrating but 2%??? On my Kona, I have see a fluctuation of about 1% but 2% seems quite the fluctuation.. I could see how the charge would go down 2% but going up 2%???

 

[jcanoe]

Periodically the Tesla Model Y will enter sleep mode, if for an extended period (I read for at least 4 hours) the battery management system can measure the open cell voltage (OCV) within the battery pack and re-calibrate the BMS.

 

[FloridaSun]

Periodically the Tesla Model Y will enter sleep mode, if for an extended period (I read for at least 4 hours) the battery management system can measure the open cell voltage (OCV) within the battery pack and re-calibrate the BMS.

That's what I thought.. As I said, my Kona Electric did that but in 52000 miles with the car, I never saw more than a 1% adjustment..

 

[jcanoe]

It is possible that as summer approaches with the ambient temperature increase the battery performs better. I would something similar in my 2017 Volt; the estimated total range would start to increase starting in spring and continue to increase until early summer although my driving pattern remained the same.

 

[GtiMart]

I've seen a 3% "gain" more than once after charging. Nothing to worry about.

 

[Sophias_dad]

Yep... 90 to 94% here.

 

[FloridaSun]

Yep... 90 to 94% here.

WOW, now that's a sizable jump!!

 

[FloridaSun]

I've seen a 3% "gain" more than once after charging. Nothing to worry about.

That's something new to me.. We have 2 other EV's that never jump more than 1%.. Battery management is quite different between them..