MyTeslaMate
BMS family

BMS_w077_SW_Charger_Regulation

Not Available

What does the BMS_w077_SW_Charger_Regulation alert mean?

The Battery Management System (BMS) has stopped charging because the max brick voltage within the high voltage (HV) battery exceeds the max brick voltage target value, or the charge current exceeds the target value for too long.

What you'll see in your Tesla

  • Not Available

What triggers it

While charging is active, the maximum brick voltage exceeds the target value for too long or the charge current exceeds the target value for too long.

When it clears

The BMS reports the brick voltage or charge current is less than the maximum target value and charging ends.

Potential impact

Charging is temporarily unavailable.

Affected models

Model S 2012-2020 Model X 2015-2020

Track your Tesla's alerts automatically

Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.