How much does it cost to charge a BYD Atto 3 at home?
A full home charge of the BYD Atto 3 60.5 kWh (2022-2025) costs about £17.95 at the July 2026 Ofgem price cap (26.11p/kWh) — that is 6.9p per mile. The typical 20–80% top-up costs £10.77.
Prices based on the Ofgem price cap of 26.11 p/kWh, effective 1 July 2026.Source: Ofgem
Full charge
£17.95
at the Ofgem price cap
Running cost
6.9p /mile
at 4.3 mi/kWh incl. losses
20–80% on a 7 kW wallbox
5 hr 11 min
costing £10.77
Charging cost by tariff
| Tariff | Full charge | 20–80% | Per mile |
|---|---|---|---|
| Ofgem price cap26.11 p/kWh | £17.95 | £10.77 | 6.9p |
| Octopus Go 12M Fixed off-peak (London example)9.50 p/kWh | £6.53 | £3.92 | 2.5p |
| Intelligent Octopus Go 12M Fixed off-peak (London example)8.00 p/kWh | £5.50 | £3.30 | 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 Atto 3 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 | 15 hr 47 min | 26 hr 18 min |
| 3.6 kW wallbox | 3.6 kW | 10 hr 5 min | 16 hr 48 min |
| 7 kW wallbox | 7 kW | 5 hr 11 min | 8 hr 39 min |
| 22 kW three-phase | 7 kWlimited by the car | 5 hr 11 min | 8 hr 39 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 BYD Atto 3
This car charges at up to 7 kW on AC
The BYD Atto 3's onboard charger accepts at most 7 kW from an AC connection. A 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 60.5 kWh battery takes about 26 hr 18 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 BYD Atto 3's running cost per mile mostly depends on your electricity rate.
Real-world figures vary
The 260-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 88 kW DC figure is not for home charging
DC rapid charging at up to 88 kW only happens at public rapid chargers. All home charging is AC, so it is the 7 kW AC limit that matters for the times on this page.
BYD Atto 3 60.5 kWh— specifications used
- Usable battery
- 60.5 kWh
- WLTP range
- 260 miles
- Efficiency
- 4.3 mi/kWh
- Max AC charging
- 7 kW
- Max DC charging
- 88 kW
- Connector
- Type 2 / CCS
Data source: BYD UK figures checked 2026-07-20; 7 kW AC on Active trim - Comfort and Design have 11 kW; 2025 facelift raised DC to 110 kW; replaced by Atto 3 Evo in 2026