Charging Comparison
BYD SEALION 7 vs Hyundai IONIQ 9
Compared variants: 91.3 kWh AWD Excellence vs Long Range RWD
Updated April 2026
Data shown is approximate and based on publicly available specifications and real-world estimates. For models with multiple battery versions, this page compares the variants listed above. Actual performance varies with driving conditions, temperature, state of charge, and charger hardware. Always check the manufacturer specification page and your vehicle's manual for official figures. EVcourse is not affiliated with any vehicle manufacturer.
Quick verdict
The Hyundai IONIQ 9 has the higher published DC charging figure at 250 kW, but both cars are listed at about 24 minutes for the published fast-charge window. The BYD SEALION 7 is more efficient at approximately 208 Wh/km. The Hyundai IONIQ 9 offers more WLTP rated range at 620 km.
Side-by-Side Specs
| Spec | BYD SEALION 7 | Hyundai IONIQ 9 |
|---|---|---|
| Compared variant | 91.3 kWh AWD Excellence | Long Range RWD |
| Battery (approx.) | ~91.3 kWh | ~106 kWh |
| WLTP range (rated) | ~502 km | ~620 km |
| Efficiency (approx.) | ~208 Wh/km | ~210 Wh/km |
| DC fast charging (published) | up to 230 kW | up to 250 kW |
| 10-80% charge time (approx.) | ~24 min | ~24 min |
| Max AC charging | up to 11 kW | up to 11 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The Hyundai IONIQ 9 has the higher published DC charging figure at 250 kW, which is roughly 9% higher than the BYD SEALION 7 at 230 kW. In practice, that figure only tells part of the story. The charging curve, battery temperature, and state of charge all affect how quickly your car actually charges.
For the published fast-charge window, the Hyundai IONIQ 9 is listed at about 24 minutes, roughly matching the BYD SEALION 7. In this case, the headline kW number should not drive the decision by itself.
Range and Efficiency
The Hyundai IONIQ 9 has a WLTP rated range of approximately 620 km, which is roughly 118 km more than the BYD SEALION 7 at approximately 502 km. WLTP is a standardized lab test. Expect your actual range to be lower, varying with speed, weather, terrain, and driving style.
Efficiency matters more than battery size for daily driving costs. The BYD SEALION 7 consumes 208 Wh/km, compared to 210 Wh/km for the Hyundai IONIQ 9. That means the BYD SEALION 7 uses less energy per kilometer, which translates to lower charging costs and fewer charging stops on longer drives.
A more efficient car does not always mean more range. Battery size plays a role too. The Hyundai IONIQ 9 has approximately 106 kWh of useable battery , while the BYD SEALION 7 has approximately 91.3 kWh.
Which One Should You Choose?
If fast charging is your priority, the Hyundai IONIQ 9 has the higher published DC figure (up to 250 kW), but both cars are listed at approximately 24 minutes for the published fast-charge window. For long road trips, published stop time matters more than the headline kW number alone.
Both cars support 11 kW AC charging, so home and workplace charging speeds will be similar.
If you mostly charge at home or at work and care more about daily driving costs, the BYD SEALION 7 is the more efficient choice at 208 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the Hyundai IONIQ 9 has a WLTP rated range of approximately 620 km, which is roughly 118 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.
At the charger? Scan the screen.
Point your phone at any charger screen and get instant help. Free to try.
From Finn, engineer: Charging specs alone do not tell the full story. Real-world charging speed depends on battery temperature, state of charge, and the charger itself. These comparisons use manufacturer-published data. Approximate values only.
EVcourse uses expert knowledge to translate charger screens and decode error codes instantly. Scan any display for help, free to start on iOS.
Don't understand the screen? Scan it.
Point your phone at any charger or car screen for instant help. Any brand, any language. Free to try on iOS.
Free to try on iOS. Android coming soon. Join the Android waitlist.