Strange Destination Charger experience

[JSergeant]

I recently upgraded my on board charger to 72 amps in anticipation of a trip to Canada. I'm currently in Nova Scotia, and the upgrade has worked well. I had one session on an 80 amp destination charger which gave me very fast charging.

However last night I was connect to a 40 amp destination charger at my hotel in Halifax, NS and when I got up this morning, I found that the charging had gone above the 90% level I had set it to (which would normally give me 255 miles of range). The car shows it is charged to 270 miles and the green bar exceeds the 90% white line. However I got a message at about 2:30 am saying charging was completed with battery at 255 miles.

I have attached iPhone screen shots to illustrate this. I've never seen this happen before.

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[Snowstorm]

I charge at a destination charger at work all the time but I had never seen this. The only time I had greater charger level than limit is when I move the limit down.

The good thing is that you car does thinkbitbgot more miles, 270 vs 255, so it is not like it just recorded more degradation. Send a email to Tesla and see what they say.

 

[LukasSwan]

I recently upgraded my on board charger to 72 amps in anticipation of a trip to Canada. I'm currently in Nova Scotia, and the upgrade has worked well. I had one session on an 80 amp destination charger which gave me very fast charging.

However last night I was connect to a 40 amp destination charger at my hotel in Halifax, NS and when I got up this morning, I found that the charging had gone above the 90% level I had set it to (which would normally give me 255 miles of range). The car shows it is charged to 270 miles and the green bar exceeds the 90% white line. However I got a message at about 2:30 am saying charging was completed with battery at 255 miles.

I have attached iPhone screen shots to illustrate this. I've never seen this happen before.

IMG_1284.PNG

IMG_1283.PNG

My car has "overcharged" beyond 90% a few times. Usually by 3-4%. I think it is just the vehicle managing it's charge for balancing or SOC purposes. I wouldn't worry about it.

 

[LukasSwan]

Coincidentally. I live in Nova Scotia. So perhaps it just the Maritimes Tesla ghost.

 

[JSergeant]

Coincidentally. I live in Nova Scotia. So perhaps it just the Maritimes Tesla ghost.

I was just going to point that out!
I've been driving and charging Model S for five years all over the US and Canada and this is the first time I've ever seen this.

I sent a note to Tesla, but haven't heard anything back.

I had a look at my TeslaFi log, and it shows charging stopped at 2:33am with battery level at 90%, and there was no further charging, so maybe it was just a display/reporting problem.

 

[juliusa]

maybe it was just a display/reporting problem.

That is what I was thinking. Did you drive today - anything strange with the SOC/miles remaining display? Perhaps a good time to do a reboot?

 

[JSergeant]

That is what I was thinking. Did you drive today - anything strange with the SOC/miles remaining display? Perhaps a good time to do a reboot?

The one thing that indicated that it really did charge above 90% was that regen was limited when I first started driving - the outside temperature was not cold.