Defaulting to 5 amps

[Rockster]

I have to primary charging locations, home and work, both equipped with wall chargers. I typically set my charging amps at these locations to 30 - 48 amps, depending upon a variety of factors. Lately, however, my 3 has been defaulting to 5 amps at both locations, no matter what the amperage setting was before. Over and over I have to move the amperage up from 5 amps to something reasonable every time I arrive at home or at work.

Is anyone else seeing this 5 amp default? It's maddening.

 

[Terran]

I'm seeing the same issue with our Model X with AP2 on FW 2019.8.3. Our Model 3 is on FW 2019.8.5 with no issues.

 

[brkaus]

Is it kicking down when charging, leaving it at 5a from the previous visit?

 

[Rockster]

It's stable at the set point while charging but somehow it drops to 5 amps by the time I return home or to work.

 

[ewoodrick]

It's stable at the set point while charging but somehow it drops to 5 amps by the time I return home or to work.

Is it full? It could be trying to equalize

 

[Rockster]

Is it full? It could be trying to equalize

No, I typically charge to 80% or so at work, then drive home and plug in but set the SOC to 50% so that I don't charge. (Since I have a free charger at work, I typically charge there.) On the weekends, though, if I'm going to be driving around, I'll set the home SOC to 80%. In either case, when I pull up and put the car in park and open the battery settings dialog, my amperage is back to 5 amps.

 

[1.21GW]

Same. I noticed the issue on 5.15. The screen shows 5 amps, however, when it started charging it went to the full 48 amps

 

[bogich]

Same. I noticed the issue on 5.15. The screen shows 5 amps, however, when it started charging it went to the full 48 amps

I've seen the same behavior on mine - just that I never go to 48Amps, since I have the SR+ .

 

[Thaiverson]

I have to primary charging locations, home and work, both equipped with wall chargers. I typically set my charging amps at these locations to 30 - 48 amps, depending upon a variety of factors. Lately, however, my 3 has been defaulting to 5 amps at both locations, no matter what the amperage setting was before. Over and over I have to move the amperage up from 5 amps to something reasonable every time I arrive at home or at work.

Is anyone else seeing this 5 amp default? It's maddening.

Do you have it set to a scheduled charge? I am wondering if it just defaults to 5A when not charging yet, but will actually max out when the scheduled time arrives? I am seeing the 5A default right now as well, but never noticed it actually charging at that slow of a rate.

 

[ggibber]

I'm having the exact same issue on my M3. It started about 4 days ago. I normally don't drive more than 50 miles/day, and always charge at midnight. I've never had an issue and always got a notification telling me that charging started at 12:00a and usually finished around 1:30am. I awoke Monday morning and it said that I needed another 1.5 hours to charge, and was charging at 5A and 7mph (I'm normally at 32mph of charge). I do have a Tesla HPWC, and downloaded the sw to 2019.20.4.2 two days later. The problem is still there. I am now coming home, plugging in, increasing to 32A and start charging immediately, and it is working fine. I'm hesitant to schedule midnight charging for fear that it will default to 5A again. Also, I only have charged at home with the same Tesla charger, as I just bought it, along with my brand new Tesla on 4/23/19. Loving the car, really frustrated these past few days, as I was already programmed to park, plug-in, and not have to even think about it. A small inconvenience, but an inconvenience none the less.

 

[brkaus]

I’m on 19.20.4.2. I have the 3 set to start charging at 11pm at 48 amps. It’s plugged into an HPWC that can deliver 40a (50a breaker) and it starts charging at 40a every night.

 

[eprosenx]

We have seen a bunch of reports of this lately.

Clearly a software bug or some kind of geolocate issue.

I wonder if the car can’t figure out where it is it defaults to 5a for safety?

(And again, this is precisely why you should never rely on setting the amps down manually in the car to keep from overloading a circuit - this kind of flaky behavior is why!!!)

 

[RedModel3]

Yeah, I've noticed that, but it seems that my car still charges adequately every day.

 

[Gabbleratchet7]

I'm having the exact same issue on my M3. It started about 4 days ago. I normally don't drive more than 50 miles/day, and always charge at midnight. I've never had an issue and always got a notification telling me that charging started at 12:00a and usually finished around 1:30am. I awoke Monday morning and it said that I needed another 1.5 hours to charge, and was charging at 5A and 7mph (I'm normally at 32mph of charge). I do have a Tesla HPWC, and downloaded the sw to 2019.20.4.2 two days later. The problem is still there. I am now coming home, plugging in, increasing to 32A and start charging immediately, and it is working fine. I'm hesitant to schedule midnight charging for fear that it will default to 5A again. Also, I only have charged at home with the same Tesla charger, as I just bought it, along with my brand new Tesla on 4/23/19. Loving the car, really frustrated these past few days, as I was already programmed to park, plug-in, and not have to even think about it. A small inconvenience, but an inconvenience none the less.

This has been my exact experience as well.

 

[Thp3]

I use the app Stats for monitoring my Tesla. It plots the charge rate each night so I can see how the Tesla is charging throughout the night. No change for my charging rates from firmware 2019.12.2 thru 2019.20.4.2.

Are you setting the amp charge rate for scheduled charging?

 

[ggibber]

I used to never set the amp charge rate, and it always started at midnight and charged at 32A. Now, I'm having to manually adjust the charge rate each time I come home and have been charging immediately upon arrival.

Today, I set the charge start time to occur at the top of the hour after I arrived early afternoon, and manually set the charge rate from the defaulted 5A to 32A, and it worked perfectly.

The issue is, prior to 10-days ago, I never had to set a charge rate. It always charged at 32A without any intervention whenever I arrived at home.

 

[Thp3]

It appears to be a software bug to me. You should submit it to Tesla mailto:[email protected]

It sounds like it is setting a default of 5A and not testing for the available amps on a scheduled charge.

 

[Smaug523]

I know this is an old threat, but my 2019 M3 Performance just started doing this exact thing. Anyone figure out a fix?