Safety first: Overvoltage can damage the charger and vehicle. Do not continue attempting to charge until the supply is verified.

1. Test supply voltage:
- Have a qualified electrician measure line-to-neutral and line-to-line voltages at the outlet.
- Confirm they are within the NRGkick's specified range (typically around 230/400 V AC depending on model).
2. Check for wiring errors:
- Verify correct phase sequence and neutral connection on three-phase CEE outlets.
- Correct any miswiring or loose neutral issues immediately.
3. Try a different outlet:
- Connect the NRGkick to another known-good supply.
- If E05 disappears, the original circuit has a voltage problem.
4. Inspect adapters:
- Ensure you are using the correct NRGkick adapter for the supply type (single-phase vs three-phase).
- Check for signs of overheating or damage on the adapter.
5. If E05 appears on multiple verified-good supplies:
- The internal voltage sensing circuit or control PCB may be faulty.
- Contact NRGkick support for diagnostics; internal board replacement may be required.

Charger displays E05 and refuses to charge, indicating overvoltage on the supply line.

Possible Causes