Home › Models › BYD Seal 6 DM-i › Range & Charging
Welcome to our comprehensive guide on the BYD Seal 6 DM i electric range and efficiency. This new plug-in hybrid saloon arrives as the second Super Hybrid DM model in Europe, following the success of the Seal U DM-i. With a focus on long-distance capability and low emissions, understanding its powertrain is key for prospective buyers. In this article, we detail the BYD Seal 6 DM i fuel economy, charging capabilities, and the exact BYD Seal 6 DM i battery size for each available trim level, helping you make an informed decision on your next vehicle.
BYD Seal 6 DM i electric range and Battery Options
One of the most important considerations when choosing a plug-in hybrid vehicle is how far it can travel on electricity alone. The official BYD Seal 6 DM i electric range depends entirely on the trim you select, as the Boost and Comfort models are equipped with different battery packs.
The entry-level Boost trim offers a WLTP electric range of up to 34 miles. Stepping up to the Comfort or Comfort Lite trim increases the zero-emission driving capability significantly, offering a WLTP electric range of up to 65 miles. This extended range on the higher trims makes it possible for many drivers to complete their daily commutes entirely on electric power.
These differences are driven by the BYD Seal 6 DM i battery size. The Boost model features a 10.08 kWh Blade LFP (Lithium Iron Phosphate) battery. In contrast, the Comfort and Comfort Lite trims benefit from a substantially larger 19 kWh Blade LFP battery. BYD’s Blade battery technology is renowned for its safety and durability, and its integration here is crucial for delivering the car’s impressive overall efficiency.
BYD Seal 6 DM i fuel economy and Powertrain Efficiency
Beyond pure electric driving, the BYD Seal 6 DM i fuel economy figures demonstrate the capability of the Super Hybrid DM-i powertrain. The system utilises a highly efficient Xiaoyun 1.5-litre petrol engine that produces 72 kW and achieves an exceptional thermal efficiency of 43%. This engine works in tandem with a 145 kW electric motor that delivers 300 Nm of torque.
When operating in charge-sustaining mode (when the battery is depleted and the car relies primarily on the engine), the fuel economy remains strong. The Boost trim achieves 64.2 mpg, while the heavier Comfort trim achieves 58.9 mpg. However, when the battery is charged, the weighted combined fuel consumption figures are remarkable. The Boost trim can achieve up to 122.8 mpg, and the Comfort trim can reach up to 188.3 mpg.
Emissions are correspondingly low, with the Boost trim producing 52 g/km of CO2, and the Comfort trim emitting just 34 g/km. Combined with a 65-litre fuel tank, the total theoretical WLTP combined range is up to 935 miles for the Boost and 904 miles for the Comfort. As Stella Li of BYD noted, this allows for “more than 935 miles on a full charge and a full tank of fuel”.
Charging Times and V2L Technology
Charging the BYD Seal 6 DM i is a straightforward process, though the capabilities differ by trim. The Boost model is equipped with a 3.3 kW AC on-board charger, which can replenish the 10.08 kWh battery from 15% to 100% in approximately 3 hours. It does not support DC fast charging.
The Comfort trim, with its larger 19 kWh battery, receives a faster 6.6 kW AC charger, reducing the AC charging time to 2.7 hours. More importantly, the Comfort trim supports DC fast charging at up to 26 kW. This allows the battery to be charged from 30% to 80% in just 23 minutes, making it much more convenient for longer journeys. Both models also feature Vehicle-to-Load (V2L) technology at 3.3 kW, which requires a dedicated cable and allows you to power external electrical devices directly from the car’s battery.
Efficiency and Aerodynamics
To maximize the BYD Seal 6 DM i electric range, the exterior design incorporates several aerodynamic enhancements. The Ocean X design language features a wave-inspired grille with an active air-intake system, which manages airflow to improve cooling and reduce drag. The sculpted dual waistlines and carefully designed alloy wheels (17-inch on the Boost and 18-inch “flying axe” alloys on the Comfort) further contribute to the vehicle’s aerodynamic efficiency and impressive kerb weight management (1,665 kg for Boost, 1,765 kg for Comfort).
Range and Charging Specifications
| Specification | Boost | Comfort / Comfort Lite |
|---|---|---|
| BYD Seal 6 DM i battery size | 10.08 kWh | 19 kWh |
| Electric Range (WLTP) | 34 miles | 65 miles |
| AC Charging Speed | 3.3 kW | 6.6 kW |
| DC Fast Charging | None | up to 26 kW |
| Charge-Sustaining Economy | 64.2 mpg | 58.9 mpg |
| Weighted Fuel Economy | 122.8 mpg | 188.3 mpg |
| CO2 Emissions | 52 g/km | 34 g/km |
| Total Combined Range | 935 miles | 904 miles |
FAQ
What is the BYD Seal 6 DM i electric range?
The WLTP BYD Seal 6 DM i electric range is up to 34 miles for the Boost trim, and up to 65 miles for the Comfort and Comfort Lite trims.
What is the BYD Seal 6 DM i battery size?
The BYD Seal 6 DM i battery size varies by model: the entry-level Boost trim has a 10.08 kWh battery, while the Comfort and Comfort Lite trims are equipped with a larger 19 kWh battery.
What is the BYD Seal 6 DM i fuel economy?
The weighted combined BYD Seal 6 DM i fuel economy is up to 122.8 mpg for the Boost trim and up to 188.3 mpg for the Comfort trim. In charge-sustaining mode, the figures are 64.2 mpg and 58.9 mpg respectively.
Does the BYD Seal 6 DM i support fast charging?
The Comfort trim supports DC fast charging at up to 26 kW, allowing a 30% to 80% charge in 23 minutes. The Boost trim does not support DC fast charging and relies on a 3.3 kW AC charger.
What is the total range of the BYD Seal 6 DM i?
Combining the electric battery and the 65-litre fuel tank, the official WLTP combined range is up to 935 miles for the Boost trim and 904 miles for the Comfort trim.
To learn more about the charging options or to book a test drive, confirm details with your local BYD dealer.