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The plug-in hybrid market in the UK is expanding, and the arrival of the Super Hybrid DM-i powertrain in the compact SUV segment offers drivers a new blend of electric and petrol driving. Central to this vehicle’s appeal is the New BYD Atto 2 DM-i electric range and its overall efficiency. This article covers everything you need to know about its battery sizes, charging times, and expected fuel economy.
Super Hybrid DM-i Powertrain Technology
The New BYD Atto 2 DM-i utilises a sophisticated front-wheel drive plug-in hybrid system. It combines a highly efficient Xiaoyun 1.5-litre petrol engine with dual high-speed electric motors that feature an integrated controller. The petrol engine produces 98 PS (72 kW) and is notable for its exceptional thermal efficiency of 43.04%. Meanwhile, the primary electric motor is capable of delivering 197 PS (145 kW) and 300 Nm of torque.
The powertrain is designed to offer flexible driving modes, primarily EV mode and HEV mode. In HEV mode, the vehicle functions as a Series hybrid during normal driving conditions, but it can seamlessly switch to a Parallel hybrid setup to provide extra power when required. The intelligent control system (represented by the “i” in DM-i) manages these transitions to optimise both performance and fuel consumption. BYD claims that the system matches traditional hybrids on efficiency even when the battery level is low.
New BYD Atto 2 DM-i battery size
To cater to different driving needs, the vehicle is available with two distinct battery configurations. The New BYD Atto 2 DM-i battery size depends entirely on the chosen trim level. Both versions use BYD’s renowned Blade LFP (Lithium Iron Phosphate) battery technology, known for its durability and space-saving design.
| Specification | Active Trim | Boost Trim |
|---|---|---|
| New BYD Atto 2 DM-i battery size | 7.8 kWh | 18.0 kWh |
| System power output | 166 PS (122 kW) | 212 PS (156 kW) |
| WLTP electric range | 24 miles | 55 miles |
| WLTP combined range | 577 miles | 620 miles |
| AC charging capability | 3.3 kW | 6.6 kW |
| 15–100% charging time | 2.7 hours | 3.0 hours |
The entry-level Active trim is equipped with a 7.8 kWh battery. In contrast, the higher-specification Boost trim features a much larger 18.0 kWh battery, which significantly enhances the vehicle’s electric-only capabilities.
New BYD Atto 2 DM-i electric range and Charging
The official WLTP New BYD Atto 2 DM-i electric range varies based on the battery size. The Active trim, with its 7.8 kWh battery, provides a WLTP electric range of 24 miles. The Boost trim, equipped with the 18.0 kWh battery, offers a substantially longer WLTP electric range of 55 miles. These figures allow many drivers to complete their daily commutes entirely on electric power before the petrol engine is needed.
When it comes to charging the battery, the Active trim supports AC charging at 3.3 kW, which allows the battery to be charged from 15% to 100% in approximately 2.7 hours. The Boost trim upgrades to faster 6.6 kW AC charging. Despite its much larger battery, the Boost trim can charge from 15% to 100% in just 3.0 hours when connected to a suitable 32 A supply. It is important to note that the official European press release does not quote a DC rapid charging figure for the hybrid powertrain. Furthermore, the Boost trim uniquely features a V2L (Vehicle-to-Load) system capable of outputting 3.3 kW, allowing the car to power external electrical devices.
New BYD Atto 2 DM-i fuel economy
Understanding the New BYD Atto 2 DM-i fuel economy involves looking at both its electric efficiency and its combined operation with the 45 L petrol tank. According to the 2025 European release, the WLTP combined fuel consumption for both the Active and Boost trims when running on a depleted battery is 55 mpg.
When factoring in the electric range, the weighted combined fuel consumption for the Boost model is officially rated at 156 mpg by the 2025 European release. This corresponds to a CO2 emissions figure of 41 g/km for the Boost trim. Overall, the WLTP combined range—which utilises both a fully charged battery and a full tank of petrol—is 577 miles for the Active trim and an impressive 620 miles for the Boost trim. The vehicle has an unbraked towing capacity of 750 kg, which may slightly reduce range and economy when towing.
FAQ
What is the New BYD Atto 2 DM-i electric range? The official WLTP electric range is 24 miles for the Active trim and 55 miles for the Boost trim.
What is the New BYD Atto 2 DM-i battery size? The vehicle uses a Blade LFP battery. The Active trim features a 7.8 kWh battery, while the Boost trim is equipped with a larger 18.0 kWh battery.
What is the New BYD Atto 2 DM-i fuel economy? The WLTP combined fuel consumption (when running without electric charge) is 55 mpg for both trims. The weighted combined figure for the Boost trim is officially 156 mpg, according to the 2025 European release.
How long does it take to charge the New BYD Atto 2 DM-i? The Active trim (3.3 kW AC) charges from 15% to 100% in 2.7 hours. The Boost trim (6.6 kW AC) charges from 15% to 100% in 3.0 hours on a 32 A connection. No DC charging figure is provided for the hybrid.
Does the vehicle offer Vehicle-to-Load (V2L) technology? Yes, the Boost trim includes a V2L system that can output up to 3.3 kW of power to run external electrical appliances, which is highly useful for camping or emergencies.
Next steps: Book a test drive and confirm current efficiency ratings and charging specifications with your local BYD dealer.