UK electric car guide
BYD Sealion 7 Battery, Range & Charging Guide UK
Battery capacity, official WLTP range, estimated real-world range, home charging, rapid charging and battery warranty for the BYD Sealion 7, 2025–2025. There are 3 versions. Figures stay on the version they belong to.
Buying a used BYD Sealion 7? Check its available battery health records, estimated range and vehicle history.
Enter the registration. The free VehicleScore comes first. Battery health records and the paid EV report are only created after you buy the check.
Choose a version
Battery capacity, range and charging for the BYD Sealion 7 depend on the model year and variant. This summary is for one version. It does not blend the model into a single figure.
2025 Sealion 7 Comfort EV (Comfort)
Battery capacity
82.5 kWh
Listed type: BYD Blade Battery (LFP). This is not a measured usable capacity.
Official WLTP range
300 miles
Official combined test figure for this version.
Estimated real-world range
300 miles
Supplier estimate. Not a VehicleScore road test, and not the official WLTP figure.
Home charging
11 kW onboard
Type 2 Standard. Listed charging time: 1674 min from 10–80% on a 2.3 kW supply; 513 min from 10–80% on a 7.5 kW supply; 350 min from 10–80% on a 11 kW supply.
Rapid charging
150 kW vehicle limit
CCS. Listed charging time: 77 min from 10–80% on a 50 kW supply; 39 min from 10–80% on a 100 kW supply; 26 min from 10–80% on a 150 kW supply. A supply power is not the car’s maximum.
Energy use
275 Wh/mile (3.64 miles/kWh, 27.5 kWh/100 miles)
Miles per kWh and kWh per 100 miles are the same Wh per mile figure converted.
Battery warranty
8 years / 125,000 miles
New-car catalogue cover. It is not the warranty left on a used car.
Versions at a glance
Battery capacity, official WLTP range and estimated real-world range for each BYD Sealion 7 version. The estimated range is the supplier’s figure, not a VehicleScore road test. A blank cell means that figure is not listed for that version.
| Model year | Variant | Battery capacity | Official WLTP range | WLTP city | Estimated real-world range |
|---|---|---|---|---|---|
| 2025 | Sealion 7 Comfort EV (Comfort) | 82.5 kWh | 300 miles | 392 miles | 300 miles |
| 2025 | Sealion 7 Design EV AWD (Design AWD) | 82.5 kWh | 283 miles | 373 miles | 283 miles |
| 2025 | Sealion 7 Excellence EV AWD (Excellence AWD) | 91.3 kWh | 312 miles | 383 miles | 312 miles |
Charging cost estimate
Estimated home-charging cost for one BYD Sealion 7 version. The full charge uses that version’s listed battery capacity, which is not a measured usable capacity. Charging loss is an assumption you can change, not a test result for this car. The tariff and annual mileage are examples until you replace them.
Estimated full charge
£22.00
Estimated electricity cost per mile
7.33p
Estimated annual charging cost
£586.40
Cost per mile uses this version’s listed Wh per mile figure. A full charge is estimated at 91.67 kWh from the meter after the assumed loss. That works out at 3.64 miles per kWh before charging loss.
Charging time
A listed charging time is shown only when this version has a 10–80% time at the exact supply power you enter. Otherwise the minutes are a VehicleScore estimate from the battery capacity, that power and the charging loss. The rapid power box starts empty unless a rapid-charge limit is listed for the car. A charger’s advertised power is not filled in for you. A calculated rapid-charge time assumes constant power. It is not a real-world charging curve, and the number you type is the supply power, not confirmation of the car’s limit.
Home, 10–80%
350 min listed
Listed charging time: 350 minutes from 10–80% on a 11 kW supply. The charging-loss box does not change a listed time.
Rapid, 10–80%
26 min listed
Listed charging time: 26 minutes from 10–80% on a 150 kW supply. The charging-loss box does not change a listed time, and this supply power is not the car’s rapid-charge limit.
Full vehicle specifications for every version
Home charging
The onboard figure is the Type 1 or Type 2 charger listed for that version. Listed charging times are 10–80% at the supply power named beside them. A 22 kW supply does not mean the car charges at 22 kW.
| Model year | Variant | Home charge port | Onboard home charger | Listed charging time |
|---|---|---|---|---|
| 2025 | Sealion 7 Comfort EV (Comfort) | Type 2 Standard | 11 kW | 1674 min on a 2.3 kW supply; 513 min on a 7.5 kW supply; 350 min on a 11 kW supply |
| 2025 | Sealion 7 Design EV AWD (Design AWD) | Type 2 Standard | 11 kW | 1674 min on a 2.3 kW supply; 513 min on a 7.5 kW supply; 350 min on a 11 kW supply |
| 2025 | Sealion 7 Excellence EV AWD (Excellence AWD) | Type 2 Standard | 11 kW | 1853 min on a 2.3 kW supply; 568 min on a 7.5 kW supply; 387 min on a 11 kW supply |
Rapid charging
A rapid-charge limit is shown only where the vehicle specification includes one and it agrees with the charging-port record. Listed charging times stay next to the supply power they were timed at. That supply power is not the car’s maximum.
| Model year | Variant | Rapid charge port | Rapid-charge limit | Listed charging time |
|---|---|---|---|---|
| 2025 | Sealion 7 Comfort EV (Comfort) | CCS | 150 kW | 77 min on a 50 kW supply; 39 min on a 100 kW supply; 26 min on a 150 kW supply |
| 2025 | Sealion 7 Design EV AWD (Design AWD) | CCS | 150 kW | 77 min on a 50 kW supply; 39 min on a 100 kW supply; 26 min on a 150 kW supply |
| 2025 | Sealion 7 Excellence EV AWD (Excellence AWD) | CCS | 230 kW | 85 min on a 50 kW supply; 43 min on a 100 kW supply; 28 min on a 150 kW supply; 21 min on a 200 kW supply; 19 min on a 230 kW supply |
Energy efficiency
Wh per mile is the listed energy-use figure. Miles per kWh and kWh per 100 miles are that same figure converted. They are not a second test.
| Model year | Variant | Energy use |
|---|---|---|
| 2025 | Sealion 7 Comfort EV (Comfort) | 275 Wh/mile (3.64 miles/kWh, 27.5 kWh/100 miles) |
| 2025 | Sealion 7 Design EV AWD (Design AWD) | 292 Wh/mile (3.42 miles/kWh, 29.2 kWh/100 miles) |
| 2025 | Sealion 7 Excellence EV AWD (Excellence AWD) | 293 Wh/mile (3.41 miles/kWh, 29.3 kWh/100 miles) |
Battery warranty
These are the new-car battery warranty years and mileage. They are not the cover remaining on a used car. Where both a time limit and a mileage limit are listed, the record does not say which one ends the cover.
| Model year | Variant | Battery warranty | Vehicle warranty |
|---|---|---|---|
| 2025 | Sealion 7 Comfort EV (Comfort) | 8 years / 125,000 miles | Not listed |
| 2025 | Sealion 7 Design EV AWD (Design AWD) | 8 years / 125,000 miles | Not listed |
| 2025 | Sealion 7 Excellence EV AWD (Excellence AWD) | 8 years / 125,000 miles | Not listed |
Other vehicle specifications
Power, pace, weight and size already have their own VehicleScore pages. They are here so you can recognise the version. They are not averaged across the model.
| Model year | Variant | Output | Torque | 0–60 mph | Top speed | Kerb weight | Length × width × height |
|---|---|---|---|---|---|---|---|
| 2025 | Sealion 7 Comfort EV (Comfort) | 308.4 bhp | 380 Nm | 6.5 sec | 133 mph | 2225 kg | 4830 × 1925 × 1620 mm |
| 2025 | Sealion 7 Design EV AWD (Design AWD) | 523 bhp | 690 Nm | 4.3 sec | 133 mph | 2340 kg | 4830 × 1925 × 1620 mm |
| 2025 | Sealion 7 Excellence EV AWD (Excellence AWD) | 523 bhp | 690 Nm | 4.3 sec | 133 mph | 2435 kg | 4830 × 1925 × 1620 mm |
Winter range
These specifications do not include a winter or cold-weather range for the BYD Sealion 7, and this guide does not estimate one. Cold weather shortens an electric car’s range. Compare the official WLTP figure and the supplier’s estimated real-world range for the same version.
A single winter percentage would mix versions that already have different batteries and ranges.
Buying a used BYD Sealion 7
The figures above describe catalogue versions. They do not describe the battery in one used car.
- Match the advert to the model year and variant before you compare battery capacity or range.
- Read battery capacity as the listed catalogue figure. Usable capacity is not included.
- Check the charge port and onboard home-charger rating for that version, especially on older cars with a Type 1 socket.
- Treat the warranty as the new-car catalogue cover. Age and mileage decide what is left.
- Enter the registration for history and any battery health records available for that vehicle. This page cannot show them.
Data sources
Battery capacity, official WLTP range, estimated real-world range, listed charging times, energy use and warranty figures are vehicle specifications supplied by UK Vehicle Data. Estimated real-world range is that supplier’s estimate, not a measurement by VehicleScore. Charging costs and any minute marked as calculated are VehicleScore estimates from the figures you can see. Usable battery capacity and winter range are not in this specification set, so they are not shown. Listed charging times that cannot be a 10–80% charge of a passenger car are left out.
Each row is one catalogue version. Figures are not averaged across model years or variants.
Questions about the BYD Sealion 7
What battery capacity does the BYD Sealion 7 have?
Battery capacity differs by version: 82.5 kWh, 91.3 kWh. Each figure belongs to the model year and variant in the table. They are not averaged, and none of them is a measured usable capacity.
What is the official WLTP range of the BYD Sealion 7?
Official WLTP combined range differs by version: 283 miles, 300 miles, 312 miles. The range table shows which model year and variant each figure belongs to.
What is the estimated real-world range of the BYD Sealion 7?
The supplier’s estimated real-world range differs by version: 283 miles, 300 miles, 312 miles. These are catalogue estimates, not a VehicleScore road test, and each one stays on its own version.
How efficient is the BYD Sealion 7?
Energy use differs by version: 275 Wh/mile, 292 Wh/mile, 293 Wh/mile. Miles per kWh on the page is calculated from that version’s Wh per mile figure.
What home charger does the BYD Sealion 7 accept?
The onboard home charger is listed at 11 kW on the versions that have a Type 1 or Type 2 rating. Listed charging times are 10–80% at the supply power named beside them.
How fast can the BYD Sealion 7 rapid charge?
A rapid-charge limit is listed only where the vehicle specification includes one and it does not disagree with the charging-port record. The listed limits are 150 kW, 230 kW. Other rapid times stay labelled with the supply power they were timed at.
What battery warranty does the BYD Sealion 7 have?
The listed battery warranty is 8 years / 125,000 miles on the versions that include it. Where both a time limit and a mileage limit are stored, the record does not say which one ends the cover. This is the new-car catalogue warranty, not the cover left on a used car.
What is the winter range of the BYD Sealion 7?
These specifications do not include a winter or cold-weather range for the BYD Sealion 7, and this page does not estimate one. The range table shows the official WLTP figure, any other official test cycle that is listed, and the supplier’s estimated real-world range where those fields are filled in.
What should I check before buying a used BYD Sealion 7?
Match the advert to the model year and variant before you compare battery capacity, range or charging. These pages describe catalogue versions. They do not show one car’s battery health or the warranty cover it has left. Enter the registration to check history and any battery health records available for that vehicle.