OWNER ANSWER
Why is my DOLPHIN SURF charging at about 6–7 kW, not 11 kW?
Around 6–7 kW can be a normal home AC rate for DOLPHIN SURF on a single-phase supply. The advertised 11 kW capability uses three-phase AC, so check the installation before treating the lower figure as a car fault.
- Check the installer’s handover for the supply phase and available charging power.
- Check the wallbox’s normal user limit and any household load management. Safety note: If a plug is damaged, unusually hot, smells burnt or shows smoke or arcing, stop using it and keep clear. Repeated electrical trips need the installer; reconnecting can worsen an electrical fault.
- Compare the steady session rate with that documented installation capability.
- Use the UK specification for your SURF trim when comparing AC and DC figures.
Why the numbers differ
Active, Boost and Comfort list 11 kW three-phase AC. A charger display, house meter and vehicle can also measure different sides of the charging process; small differences alone do not identify a fault.
If that did not work
If the rate is below what the actual installation should supply, ask the installer or wallbox provider to check its limit and load-management log. If that supply is confirmed and the issue follows the car on suitable AC equipment, ask BYD to inspect it.
Related links
Source: BYD UK Media. Checked 22 October 2026.