What Happens If There Is a Power Cut While Charging?
Nothing dangerous happens. Charging stops safely and resumes automatically once power is restored.
If there is a power cut while your EV is charging at home, charging simply stops. This is expected behaviour and does not damage the charger, the car, or your home’s electrical system.
Home EV chargers are designed to handle power interruptions safely. When the power supply is lost, the charger shuts down automatically. Once electricity is restored, most chargers will either resume charging on their own or wait for the next scheduled charging window, depending on how they are set up.
Your car’s battery is not harmed by a power cut. EV batteries are designed to cope with interruptions in charging and include their own safety systems to manage power flow.
If your charger is set to charge overnight on a timer or night-rate schedule, it will usually continue with that schedule once power returns. In some cases, you may need to unplug and reconnect the cable or restart charging via the app, but this is straightforward.
Power cuts are more common in some rural areas, but even there, EV chargers are built with this in mind. If outages are frequent, pairing EV charging with a home battery system can provide additional resilience, though this is optional rather than required.
In normal use, a power cut during charging is a minor inconvenience rather than a problem.