Tesla model s stops charging at 95%

[weezas12345]

I set my car to 100 but said charging complete at 95. I have a 2017 model s 100d. Is this normal? Out of all my years, it always charges to 100 if I needed the extra range for that day. Normally set to charge to 80 everyday.

 

[vcor]

What kind of charging (Home, L2, Supercharger, etc.)? It doesn't sound normal. Things that might cause this at home could be a voltage sag on the incoming power or perhaps some kind of extreme temperature situation. Has this happened twice in a row?

 

[ElectricIAC]

Probably need to run the car down to low (single digits) SOC% and let it sit there a while so it knows where the bottom is and try another full charge.

That usually does the trick for us if we encounter top limit less than 100%.

 

[weezas12345]

What kind of charging (Home, L2, Supercharger, etc.)? It doesn't sound normal. Things that might cause this at home could be a voltage sag on the incoming power or perhaps some kind of extreme temperature situation. Has this happened twice in a row?

What kind of charging (Home, L2, Supercharger, etc.)? It doesn't sound normal. Things that might cause this at home could be a voltage sag on the incoming power or perhaps some kind of extreme temperature situation. Has this happened twice in a row?

live in san diego, not cold or hot. 14-50 tesla charger. I did however supercharge yesterday on a road trip, but supercharged to 90. The next day when I returned home, I set to 100 and it only charged to 95% and it said complete. says 40A in the car, but I know the amps lower when its getting close to 100.

 

[weezas12345]

Probably need to run the car down to low (single digits) SOC% and let it sit there a while so it knows where the bottom is and try another full charge.

That usually does the trick for us if we encounter top limit less than 100%.

I did that yesterday, but to 10%, let it sit for about 9 hours before plugging in to charge.

 

[ResHacker]

Try to check the inbalance when fully charged. It should be around 10mV max. And if so, then it's just a BMS calibration issue as mentioned above, it can be also influenced by low temperature (warmer battery can absorb more electrons .

 

[Lasttoy]

Sounds u have cooling problem. Mine did that, one of my pumps up front died. I changed it, problem gone. If pack gets hot. It will stop charging.

 

[Jbomb808]

I charge to 100% everyday on my 2018 75d sometimes mine will do this too 95% 97% etc. I think it’s just the BMS trying to protect the battery. Because the next day it charged too 100%.

 

[EastCoast85D]

My car has a hard time making it past 97%. Been like that forever. I only charge to 85-90% at home on 24A so I’m not stressing the battery. It’ll make it 99% every now and then but won’t stay there for long

 

[weezas12345]

My car has a hard time making it past 97%. Been like that forever. I only charge to 85-90% at home on 24A so I’m not stressing the battery. It’ll make it 99% every now and then but won’t stay there for long

Did you ever take it in for service to see if there is something wrong with the battery?

 

[weezas12345]

My car has a hard time making it past 97%. Been like that forever. I only charge to 85-90% at home on 24A so I’m not stressing the battery. It’ll make it 99% every now and then but won’t stay there for long

Probably need to run the car down to low (single digits) SOC% and let it sit there a while so it knows where the bottom is and try another full charge.

That usually does the trick for us if we encounter top limit less than 100%s

So i let it run down to about 9%, let it set for about hour an half, then set to charge to 100, and it stopped at 97% this morning. So it didnt work. Unless I needed to let it sit longer at single digits?

 

[ElectricIAC]

So i let it run down to about 9%, let it set for about hour an half, then set to charge to 100, and it stopped at 97% this morning. So it didnt work. Unless I needed to let it sit longer at single digits?

Longer. I usually let it go for a half a day if I’m not using the car that day.

 

[vcor]

Another thought - if you charge it overnight, and let's say it gets to 100% at 2am and stops charging. It could be when you look at it in the morning, it has discharged a few percent depending on what options you have on (Sentry mode for example, but there are other draining options). If you use timed charging (i.e. starts at midnight), when the charging reaches your set level, it will not restart charging after it drains from other vehicle power draws.

 

[weezas12345]

Another thought - if you charge it overnight, and let's say it gets to 100% at 2am and stops charging. It could be when you look at it in the morning, it has discharged a few percent depending on what options you have on (Sentry mode for example, but there are other draining options). If you use timed charging (i.e. starts at midnight), when the charging reaches your set level, it will not restart charging after it drains from other vehicle power draws.

I did start charging at midnight and I monitored when I woke up, when I woke up it still had a few hours remaining, it never reached 100. i do have a sevice call set up next week, be interesting to see what they say. Also, Tesla replaced my battery in August. So its only been a few months, since the replaced my battery pack.