AC charging preserves the health of the high voltage battery for longer high voltage battery life.
When AC charging, keep your vehicle plugged in when outside temperatures are very high or low. This enables the system to maintain the high voltage battery for best performance.
Ending the charge at 100% will maximize the driving range for your next trip. Ending the charge at 80% or lower will help to preserve the health of the high voltage battery. Charge rates are significantly slower above 80% state of charge.
The system could reduce DC fast charging rate to preserve the battery. This is based on battery temperature, battery state of charge and battery health.
In cold temperatures, you may notice that DC charging takes longer when the ambient temperature drops below
50 °F (10 °C). Shutting off climate control or reducing climate control temperature and fan settings for the first 10 to 15 minutes of DC charging allows the battery to warm up and improve the charging rate.
When the temperature is below freezing, fully turning off cabin heat for the first 10 to 15 minutes of DC charging could significantly improve the charging rate.