Slow EV Charging Speed
The car is charging much slower than expected, taking many hours longer than the charger's rated speed.
What Is Causing This?
- 1Charger power limited by the home's electrical supply
- 2Car's onboard charger limiting the intake
- 3Charger reducing power due to overheating
How Urgent Is This?
This is a cosmetic issue. It is not causing damage and can be addressed in your own time.
What Needs to Be Done
An EV charger installer will check the charger output, the car's charge settings, and the supply capacity. They may need to upgrade the supply or adjust load management.
How Much Will It Cost?
National average estimate
Labour: £417 – £1,367 | Materials: £567 – £2,367
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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Ask a QuestionHow to Prevent This
Check that your electrical supply supports the charger's full rated output. Keep the charger and cable connectors clean. Charge during off-peak hours when supply is more stable.
Related Problems
Other EV Charger Installer Problems
The EV charger does not start a charging session, shows an error, or the car does not recognise it.
The home electrics trip whenever the EV charger starts or during a charging session.
The EV charger unit displaying a red or amber error light, with charging not starting.
The charger's smartphone app cannot connect to the unit, preventing remote control or scheduling.