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2023 BYD Seal U Boost 74 kWh 214 hp Battery, Horsepower, Range
The BYD Seal U Boost electric SUV combines responsive performance with a 71.8 kWh usable LFP battery capacity (battery size), 420 km (261 mi) WLTP range, and 0–100 km/h in 9.3 s (0–62 mph). All specifications verified against official BYD data and type‑approval documents.
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BYD Seal U
Boost | 2023–2024
74 kWh
420 km
160 kW
9.3 s
TRIM (VARIANT) :
Technical Data & Performance | |
| Model Years | 2023–2024 |
| Trim (Variant) | Seal U - Boost |
| Power (Horsepower) | 160 kW (214 hp) |
| Top Speed | 175 km/h (109 mph) |
| Torque | 310 Nm (229 lb-ft) |
| Acceleration | 9.3 sec (0–100 km/h) 9.3 sec (0–62 mph) |
| Drive | FWD Front-wheel drive |
| Motor details | Single Permanent Magnet Synchronous Motor |
| Motor code | BYD Blade Motor |
Battery & Charging | |
| Battery Capacity & Size | 71.8 kWh usable, 74 kWh gross |
| Max Range | 420 km (261 mi) / WLTP 500 km (311 mi) / CLTC |
| Consumption | 19.9 kWh/100 km |
| Battery Type | Lithium-ion |
| Cell Format / Supplier | LFP (Lithium Iron Phosphate) BYD Blade |
| Battery Voltage | 422.4 V |
| V2L Supported | Yes / 3.3 kW |
| Heat pump | Yes |
| AC Home Charging | Type2 / 1-phase - 7 kW (Max Power) Type2 / 3-phase - 11 kW (Max Power) |
| DC Fast Charging | CCS2, 115 kW (Max Power) 27 min. (10–80%) |
Dimensions & Body | |
| Type | 5 door, SUV |
| Seating capacity | 5 |
| Length | 4785 mm (188.4 in) |
| Width | 1890 mm (74.4 in) |
| Height | 1668 mm (65.7 in) |
| Wheelbase | 2765 mm (108.9 in) |
| Ground Clearance | 149 mm (5.9 in) |
| Curb weight | 2020 kg (4453 lb) |
| Gross weight | 2430 kg (5357 lb) |
| Trunk Volume | 552 L (19.5 ft³) 1440 L (50.9 ft³) max |
| Towing | Unbraked: 750 kg (1653 lb), Braked: 1300 kg (2866 lb) |
| Drag Coefficient | 0.31 |
| Platform | BYD e-Platform 3.0 |
|
Estimated Market Price * for reference only |
EUR 35,000 |
⚠️ Please note: actual vehicle specifications may vary depending on market, trim level, or available regional packages.
The Evolution of the BYD Seal U Official Specifications and Technical Upgrades
First Generation (2023–Present)
2023: World Premiere
- Debut: First shown in China in April 2023 as the Song Plus EV facelift; positioned for global markets under the name Seal U.
2024: European Launch
- Powertrain:
- FWD: Front permanent‑magnet synchronous motor, 160 kW (214 hp), 330 Nm (243 lb‑ft). 0–100 km/h (0–62 mph) in 9.3 s (Comfort) / 9.6 s (Design). Top speed 175 km/h (109 mph).
- Battery: BYD Blade LFP — 71.8 kWh usable (Comfort) / 87.0 kWh usable (Design).
- Range: WLTP combined up to 420 km (261 mi) Comfort / 500 km (311 mi) Design.
- Charging: AC up to 11 kW (3‑phase), DC fast charging up to 115 kW (Comfort) / 140 kW (Design) — 30–80 % in ~27–28 min.
2025: Model Year Update
- Battery: Both 71.8 kWh and 87.0 kWh usable Blade LFP packs continue, with software refinements for efficiency.
- Range: WLTP combined remains up to 420 km (261 mi) Comfort / 500 km (311 mi) Design, with improved high‑speed endurance on the larger pack.
- Charging: DC peak maintained at 115–140 kW, with optimized thermal management reducing 30–80 % charge times to ~26–28 min.
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Common Issues of the BYD Seal U
2023-2024 Model (Early Production)
Early production units of the BYD Seal U gained attention for their design and range, but owners reported several recurring issues that affected daily usability.
Power System Failure
Some owners experienced sudden loss of drivetrain power with warnings such as 'Power system failure'. In certain cases, the vehicle became immobile and required towing. Investigations pointed to faulty connectors or wiring harness issues near the rear axle and high-voltage battery.
Infotainment and Touchscreen Glitches
Frequent complaints include frozen touchscreens, laggy response, and unexpected reboots of the central display. Since most vehicle functions are controlled through the screen, these failures can disrupt normal driving.
Suspension Noise
After several thousand kilometers, owners noted squeaks and rattles from the suspension. These noises are often linked to stabilizer bushings or minor component wear, but they remain a common annoyance.
2024-2025 Model (Later Production)
Later production runs of the BYD Seal U show improvements in build quality and software stability. However, some issues continue to be reported by owners.
Reduced But Present Software Quirks
OTA updates have improved system reliability, but occasional glitches with infotainment and driver assistance features (such as adaptive cruise control alerts) are still reported.
Minor Build Quality Variability
Overall assembly quality is solid, but panel alignment issues and interior trim noises can still occur, especially after extended use.
Conclusion
The BYD Seal U is generally praised for its efficiency, range, and technology, but potential buyers should be aware of power system failures, infotainment bugs, AWD software issues, and suspension noises. Later models show improvements, yet a careful inspection and confirmation of software updates are recommended before purchase.
* Disclaimer: The information presented here is compiled from owner discussions in online communities, forums, and various open public sources. The accuracy, completeness, and reliability of this data cannot be guaranteed, and it should be used for informational purposes only.
Frequently Asked Questions FAQ about the BYD Seal U Boost electric car : Specs Range battery capacity size
The Seal U offers a range of up to 420 km (261 mi) / WLTP under WLTP standards, depending on driving conditions and trim.
It supports DC fast charging up to 115 kW, reaching 10–80% in about 27 minutes at compatible stations. AC charging is 11 kW from a home wallbox.
Yes, the Seal U supports V2L (Vehicle-to-Load) and bidirectional charging at up to 3.3 kW. That means you can power external devices or even charge another EV from the car.
The 2023 BYD Seal U Boost has a trunk capacity of 552 L (19.5 ft³) standard, expandable to 1440 L (50.9 ft³) with rear seats folded. Frunk availability hasn't been officially confirmed yet.
The 2023 BYD Seal U Boost measures 4785 mm (188.4 in) in length, 1890 mm (74.4 in) in width, and 1668 mm (65.7 in) in height. The wheelbase is 2765 mm (108.9 in).
The ground clearance of the Seal U is 149 mm (5.9 in).
Unbraked trailer: 750 kg (1653 lb). Braked trailer: 1300 kg (2866 lb).
The Seal U features a motor (BYD Blade Motor) delivering 160 kW (214 hp) and 310 Nm (229 lb-ft) of torque.
2023 BYD Seal U Boost common issues and main problems:
- Power System Failure
- Infotainment and Touchscreen Glitches
- Suspension Noise
- Reduced But Present Software Quirks
- Minor Build Quality Variability