Why did my EV charge to 100% despite an 80% limit?

[Dymista20]

I had a small issue with my car that needed to be fixed, so I took it back to the dealer a few days ago. When I picked it up, I noticed they had it plugged into a rapid CCS DC charger and had charged it all the way to full.

The thing is, I have my car set to charge to 80%, following the dealer's recommendation, but for some reason, it didn't stop at 80% this time. Now, I am wondering. Do the rapid CCS DC chargers at the dealer override the charging settings in the car? For example, does it handle charging differently from the 7kW home charger I usually use?

 

[Ebao]

When charging at home, I'd expect the car and app to team up and limit the charge to 80%. Our Born has always worked great with this. We just let the car decide the max charge and the app handles the timing. A DC charger should also respect the car's limit. I wouldn't worry about the car sitting at less than 97% for a bit. It's actually better to avoid always charging to 100%, as temperature changes can mess with the charge level. The main reason to keep it below 80% is to spread out the charge/discharge cycles between the battery cells, making the battery last longer.

 

[Watson8]

I had a small issue with my car that needed to be fixed, so I took it back to the dealer a few days ago. When I picked it up, I noticed they had it plugged into a rapid CCS DC charger and had charged it all the way to full.

The thing is, I have my car set to charge to 80%, following the dealer's recommendation, but for some reason, it didn't stop at 80% this time. Now, I am wondering. Do the rapid CCS DC chargers at the dealer override the charging settings in the car? For example, does it handle charging differently from the 7kW home charger I usually use?

Yes, rapid CCS DC chargers can bypass the car's charging settings, charging it to full rather than stopping at a preset limit.

 

[MayersIP]

I had a small issue with my car that needed to be fixed, so I took it back to the dealer a few days ago. When I picked it up, I noticed they had it plugged into a rapid CCS DC charger and had charged it all the way to full.

The thing is, I have my car set to charge to 80%, following the dealer's recommendation, but for some reason, it didn't stop at 80% this time. Now, I am wondering. Do the rapid CCS DC chargers at the dealer override the charging settings in the car? For example, does it handle charging differently from the 7kW home charger I usually use?

It looks like AC charging uses the car's built-in charger, so the car controls the settings. But with DC fast charging, the charger is outside the car, connected by that big cable. That might be why those fast chargers can sometimes ignore the car's settings. That could also explain why the dealer could charge your car to 100%, even though you set it to 80%. Hey, this is just my guess though!