How much does it cost to charge a MG MG4 EV at home?
A full home charge of the MG MG4 EV SE 51 kWh (2022-present) costs about £15.07 at the July 2026 Ofgem price cap (26.11p/kWh) — that is 6.9p per mile. The typical 20–80% top-up costs £9.04.
Prices based on the Ofgem price cap of 26.11 p/kWh, effective 1 July 2026.Source: Ofgem
Full charge
£15.07
at the Ofgem price cap
Running cost
6.9p /mile
at 4.3 mi/kWh incl. losses
20–80% on a 7 kW wallbox
4 hr 37 min
costing £9.04
Charging cost by tariff
| Tariff | Full charge | 20–80% | Per mile |
|---|---|---|---|
| Ofgem price cap26.11 p/kWh | £15.07 | £9.04 | 6.9p |
| Octopus Go 12M Fixed off-peak (London example)9.50 p/kWh | £5.48 | £3.29 | 2.5p |
| Intelligent Octopus Go 12M Fixed off-peak (London example)8.00 p/kWh | £4.62 | £2.77 | 2.1p |
Costs include the ~12% energy lost during AC charging, so they reflect what your meter records. Off-peak rates assume all charging happens inside the cheap window; rates vary by region. These are comparisons of published rates, not tariff recommendations.
How the MG4 EV compares on running cost
Pence per mile at the Ofgem price cap. Shorter is cheaper.
Charging time by charger type
| Charger | Speed for this car | 20–80% | Empty to full |
|---|---|---|---|
| Three-pin plug (2.3 kW) | 2.3 kW | 13 hr 15 min | 22 hr 5 min |
| 3.6 kW wallbox | 3.6 kW | 8 hr 28 min | 14 hr 7 min |
| 7 kW wallbox | 6.6 kWlimited by the car | 4 hr 37 min | 7 hr 42 min |
| 22 kW three-phase | 6.6 kWlimited by the car | 4 hr 37 min | 7 hr 42 min |
Times are simple energy-needed ÷ power estimates. Real sessions can run a little longer, because charging slows as the battery approaches full.
What affects these numbers for the MG MG4 EV
This car charges at up to 6.6 kW on AC
The MG MG4 EV's onboard charger accepts at most 6.6 kW from an AC connection. A 7 kW wallbox and 22 kW three-phase cannot charge it any faster than that, so there is no benefit in paying for a more powerful home charger than the car can use.
A three-pin plug is a backup, not a plan
From a standard three-pin socket (2.3 kW), an empty-to-full charge of the 50.8 kWh battery takes about 22 hr 5 min. Fine for overnight top-ups, but impractical as your only way to charge.
Typical EV efficiency
4.3 miles per kWh is in the normal range for a modern EV, so the MG MG4 EV's running cost per mile mostly depends on your electricity rate.
Real-world figures vary
The 218-mile range is the official WLTP lab figure. Cold weather and motorway speeds reduce real-world efficiency, which raises cost per mile and lowers range. Treat these numbers as good estimates, not promises.
The 87 kW DC figure is not for home charging
DC rapid charging at up to 87 kW only happens at public rapid chargers. All home charging is AC, so it is the 6.6 kW AC limit that matters for the times on this page.
MG MG4 EV SE 51 kWh— specifications used
- Usable battery
- 50.8 kWh
- WLTP range
- 218 miles
- Efficiency
- 4.3 mi/kWh
- Max AC charging
- 6.6 kW
- Max DC charging
- 87 kW
- Connector
- Type 2 / CCS
Data source: MG UK MG4 brochure checked 2026-07-20; SE has 6.6 kW onboard AC; DC originally advertised 117 kW but later revised by MG to 87 kW