Charging to 90%, cooling fans stay on and drain battery

[Lectric_Agent]

After charging my car (at 240v/40A) I have to unplug and move it into my carport. Ever since 2019.40.x when I charge to 90% my cooling fans stay on for hours and my charge will drop by 2-3% in a matter of hours! This never happened before.

Is anyone else experiencing this?

If this is the new norm, is it even worth charging to 90% if it’s just going to discharge quickly by cooling the battery for hours on end??

fyi i also have the greatly reduced regen on a “cool” morning (50-60 deg.). This happens even after charging for almost 2hrs at 40A!!

 

[Lectric_Agent]

bump

 

[Gixx1300R]

Have you tried rebooting?

 

[Lectric_Agent]

Yes, lots of reboots!

 

[Gixx1300R]

I am on 2019.40 and my fans aren't running continuously while charging.

 

[Lectric_Agent]

What’s your ride? I couldn’t find it in your profile.

I saw someone else post about my issue recently but I can’t remember where, I think it was in the “software” part of the forum

 

[Uncle Paul]

suspect...

 

[Gixx1300R]

What’s your ride? I couldn’t find it in your profile.

I saw someone else post about my issue recently but I can’t remember where, I think it was in the “software” part of the forum

2013 P85

 

[Lectric_Agent]

Have you been hit with batterygate? I’ve been lucky

 

[Gixx1300R]

Have you been hit with batterygate? I’ve been lucky

Yes I have, I lost over 40 miles of range when I updated the software, slow charging at home and supercharging. Also I can no longer charge to 100%

 

[BrokerDon]

My 2015 P85DL did this 2 days ago randomly when it was plugged into our Tesla High Power Wall Connector (gen1 HPWC on 100A circuit / 80A max output) after had been charged overnight to 90%. I drove it yesterday and recharged to 90% again overnight and the cooling fans aren't running this morning while it is still connected to my HPWC .

Christmas "Easter Egg" ???

 

[dha820]

Any update or resolution on this one? Just noticed last week that my car has also been doing this. I'm also on 2019.40.

FWIW, i did not lose range with battery gate but i do experience slower supercharging speeds.

 

[Doanster1]

I have been experiencing that before 2019.40, but I rarely charge to 90%. What has changed for me is that there’s now a high pitched whine without the cooling fans running even though I charge nightly to 80%. I think it’s one of the cooling pumps running. I’m now on 2019.40.2.3 (P85D) and don’t use preset departure, etc.

 

[rowdy]

I've heard lowering the charge to 75% stops it. Probably not much point charging to 80% unless you're going to drive straight away as it'll drop a few % over the next few hours from the cooling/pumps