BYD Dolphin 44.9kWh Boost

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Last modified: May 11, 2026

The BYD Dolphin 44.9kWh Boost is an all-electric hatchback offering a WLTP range of up to 315 km (196 miles). EVKX.net has all the details you need.

BYD Dolphin 44.9kWh Boost

Hatchback · FWD · 5 seats · 400V architecture

Range
315 km
WLTP
Battery
44.9 kWh
usable
DC charging
65 kW
max
0–100 km/h
7 s
Power
130 kW
177 hp
Efficiency
14.3
kWh/100 km
Drivetrain
FWD

EVKX overview

Strengths

  • Efficient consumption (14.3 kWh/100 km)

Good to know

  • Slower DC charging (65 kW)

Best suited for: City driving and commuting

Compare with alternatives

Alternative Models

The BYD Dolphin 44.9kWh Boost alongside these alternatives:

Performance

The BYD Dolphin 44.9kWh Boost has a maximum power of 130 kW (177 hp / 174 bhp) and a total torque of 260 Nm (192 lb-ft). It accelerates from 0 to 100 km/h (0 to 62 mph) in 7 seconds and reaches a top speed of 160 km/h (99 mph).

Battery, Range, and Charging

The battery has a gross capacity of 46.0 kWh and a net usable capacity of 44.9 kWh, with a 1.1 kWh buffer (2.4%) for battery protection. With a nominal voltage of 333 volts, the system is classified as a 400-volt battery system.

The lithium-ion battery uses LFP technology, which has different characteristics from typical NCA and NMC batteries.

According to the WLTP (Worldwide Harmonized Light Vehicles Test Procedure) standard, the vehicle's range is 315 km (196 miles), with an energy consumption rate of 14.3 kWh/100 km (4.4 mi/kWh).

For more details about the range, see real-world data and range listings on this model’s range and consumption page.

The vehicle supports fast DC charging with a maximum power of 65 kW. A 0–100% charge takes approximately 66 minutes. A typical 10–80% session takes about 38 minutes at an average power of 49 kW.

With five minutes of overhead per stop, the optimal charging window is 1–43%. Effective average power, including overhead, is 46 kW over a session lasting about 24 minutes and 21 seconds.

In a 1000 km challenge at a constant speed of 120 km/h (75 mph) with an assumed consumption rate of 22 kWh/100 km, the trip would take about 12 hours and 7 minutes, needing ten charging stops from 3% to 42%, totaling 228 minutes of charging time.

Onboard Charger

The standard onboard charger supports AC charging at up to 11 kW. A full 0–100% charge takes about 4 hours and 4 minutes with a suitable home charging setup.

Charge Port

The charge port is conveniently located on the right front side, facilitating easy access at charging stations where you park parallel to the charger.

Connector types vary by market: this model uses CCS Combo 1 in North America and CCS Combo 2 in Europe. For complete specifications for all markets, refer to the full specifications.

Bidirectional Charging

This model supports V2L (Vehicle to Load), allowing you to power electrical equipment requiring up to 2.2 kW of power, and even charge other electric vehicles.

Drivetrain

The BYD Dolphin 44.9kWh Boost has a front-wheel drive system supported by one motor on the front axle.

The motor used is Induction Motor.

Suspension

The suspension system features a MacPherson strut front construction and a multi-link rear construction. Both the front and rear dampers are monotube dampers. The front and rear springs are coil springs.

The standard suspension has a fixed height and damping characteristics.

Ground clearance with this setup is 130 mm.

Steering

Progressive steering is standard on the BYD Dolphin 44.9kWh Boost. It adjusts the steering ratio according to vehicle speed.

Drive Modes

The BYD Dolphin 44.9kWh Boost lets the user select different drive modes that affect the car's handling.

The driver can choose between 4 modes:

  • Eco: Balanced steering and efficient throttle.
  • Normal: Balanced steering and throttle.
  • Sport: Balanced steering and throttle.
  • Sport: Balanced steering and throttle.

Brakes

The BYD Dolphin 44.9kWh Boost is equipped with cast-iron disc brakes on both the front and rear.
The front discs measure 276 mm, while the rear discs are 262 mm.

Regenerative Braking

Automatic regeneration is not available in this model. However, regenerative braking is available through one-pedal driving combined with blended brakes.

However, it is not considered full one-pedal driving since, at low speeds, the vehicle will keep rolling until it comes to a stop by itself.

Drivers can also adjust the regenerative braking strength when lifting off the accelerator, choosing between two levels.

The maximum regenerative braking power is 100 kW.

Exterior

The BYD Dolphin 44.9kWh Boost, with dimensions of 4290 mm in length, 1770 mm in width, and 1570 mm in height, falls into the C-segment, also known as compact cars.

The BYD Dolphin 44.9kWh Boost is available in a total of 6 solid paint colors.

You can select from multiple wheel designs, all available in the same size, on the BYD Dolphin 44.9kWh Boost. The available tire and wheel combinations include:

  • 205/55 tires on 17" rims

The car has four regular doors and a liftgate.

There is only one roof option for this model.

A conventional roof is standard.

The windows behind the B-pillar are tinted for privacy and to reduce glare and solar heat gain.

BYD Dolphin 44.9kWh Boost

Interior

The interior of the BYD Dolphin 44.9kWh Boost is designed with a minimalistic aesthetic, featuring medium-quality materials throughout. The split-level center console separates the driver and passenger with integrated storage.

Seats

The BYD Dolphin 44.9kWh Boost accommodates five passengers with two front seats and a three-seat bench in the rear.

First Row Seats

The BYD Dolphin 44.9kWh Boost offers a single type of front seat.

The standard seat offers:

Available in:

BYD Dolphin 44.9kWh Boost

Second-Row Seats

The second row features a standard three-seat bench with a 60:40 split, allowing each section to fold separately to increase cargo space.

Additional second-row features include:

  • ISOFIX (standard for outer seats)

BYD Dolphin 44.9kWh Boost

Interior Storage

The BYD Dolphin 44.9kWh Boost has the following interior storage:

  • Glove Compartment: Located in the dashboard in front of the passenger.
  • Door Pockets: The front and rear doors include integrated storage pockets.

Interior Lighting

The BYD Dolphin 44.9kWh Boost offers several interior lighting options.

  • White Roof Reading Light: White reading lights are mounted in the roof area.

Climate System

There is one climate system available:

  • 2-zone climate system: Supports different temperatures for the driver and passenger.

A standard heat pump reduces heating energy use in cold weather.

Comfort Features

The BYD Dolphin 44.9kWh Boost includes the following comfort features:

  • Air Fragrance: Releases scent into the cabin through the ventilation system.

User Interface and Control

The BYD Dolphin 44.9kWh Boost uses a primarily screen-based interface while retaining steering-column stalks and a limited number of physical buttons.

Behind the steering wheel is a digital instrument cluster, and on the right part, there is an infotainment screen.

Key screen details:

  • Driver Information Display: A 5.0-inch screen mounted directly on the dashboard behind the steering wheel. This compact display shows essential driving information such as speed, range, and navigation prompts.
  • Center Dashboard Touchscreen: The 12.8-inch touchscreen is located at the center of the dashboard. It serves as the main interface for infotainment, navigation, and vehicle settings.

The BYD Dolphin 44.9kWh Boost does not have a head-up display. Speed and navigation information remain on the vehicle's other displays.

BYD Dolphin 44.9kWh Boost

Steering Wheel

The BYD Dolphin 44.9kWh Boost is equipped with a single type of steering wheel:

The steering wheel adjusts for tilt and reach. The adjustment is electrically powered.

Design: Circular flat-bottom

Controls: Physical buttons, Scroll wheels

Heating: Not available

From the steering wheel you can control:

  • Infotainment: Steering-wheel controls provide access to media and infotainment functions.

Mirrors

Both the exterior and interior mirrors use conventional mirror technology to provide a clear view of the area behind the vehicle.

Infotainment

The BYD Dolphin 44.9kWh Boost features the BYD DiLink infotainment system, built on Android, with navigation, media, and vehicle settings through the touchscreen display. It supports over-the-air updates.

Navigation System

The built-in navigation system uses detailed maps and offers advanced route planning. It provides real-time traffic information to support an efficient and stress-free journey.

Phone Mirroring

The BYD Dolphin 44.9kWh Boost supports Android Auto and Apple CarPlay, providing access to compatible phone apps such as Google Maps and Waze on the car's display.

Sound System

The BYD Dolphin 44.9kWh Boost has one sound system option:

  • Dirac: Features six speakers.

The model includes USB-C connectivity as standard (total: 4).

Mobile App

The BYD Dolphin 44.9kWh Boost has a mobile app for Android and iOS to manage and monitor the vehicle remotely. Features:

  • Locate Your Vehicle: Check the current location of your car.
  • Preconditioning: Preheat or cool your car before you start your journey.
  • Lock and unlock: Lock or unlock the doors remotely.
  • Scheduled Charging: Set a charging schedule.
  • Charge Target: Set the battery's target state of charge.
  • Find your car: Sound the horn or flash the lights to locate the car.
  • Route Planning: Plan your route and send it directly to your car's navigation system.
  • Driving History: Review the details of your past trips.

Lights

Standard Headlights: These use LED technology.

The taillights use LED technology.

BYD Dolphin 44.9kWh Boost

Advanced Driver Assistance Systems

The BYD Dolphin 44.9kWh Boost offers standard and optional advanced driver assistance systems (ADAS).

Safety Systems

Anti-lock Braking System (ABS): Standard on the BYD Dolphin 44.9kWh Boost. It prevents the wheels from locking during braking.

Electronic Stability Control (ESC): Standard on the BYD Dolphin 44.9kWh Boost. It improves stability during sudden maneuvers and on slippery roads.

Lane-Keeping Assist (LKA): Standard on the BYD Dolphin 44.9kWh Boost. It applies steering corrections if the vehicle begins to leave its lane.
The Lane Departure Warning alerts the driver if the vehicle begins to leave its lane.

Front Cross Traffic Assist (FCTA): Standard on the BYD Dolphin 44.9kWh Boost. It detects traffic crossing ahead when entering an intersection or pulling away from a stop.

Rear Cross Traffic Alert (RCTA): Standard on the BYD Dolphin 44.9kWh Boost. It detects vehicles approaching from the side while reversing out of a parking space or driveway.

Forward Collision Warning (FCW): Optional on the BYD Dolphin 44.9kWh Boost. It warns the driver of a potential frontal collision.

Automatic Emergency Braking (AEB): Standard on the BYD Dolphin 44.9kWh Boost. It applies the brakes automatically if the driver does not respond to an imminent collision.

Automatic Emergency Steering (AES): Optional on the BYD Dolphin 44.9kWh Boost. The system can steer automatically to help avoid an imminent collision.

Blind-spot Monitoring (BSM): Standard on the BYD Dolphin 44.9kWh Boost. It detects traffic in the vehicle's blind spots.

Exit Warning: Standard on the BYD Dolphin 44.9kWh Boost. It warns occupants not to open a door when it detects approaching traffic or another hazard.

Driving Automation

The BYD Dolphin 44.9kWh Boost offers driving automation at level 1, depending on the equipment level.

The Level 1 system provides the following driving automation features.

Sensors & Cameras

This model uses cameras and ultrasonic sensors for its driver assist systems.

Up to one cameras and three ultrasonic sensors monitor the vehicle’s surroundings.

Safety

The BYD Dolphin 44.9kWh Boost is equipped with the following airbags:

  • Front airbags for the driver and front passenger
  • Side curtain airbags for both the first and second rows
  • Side airbags for the driver and front passenger
  • A front-center airbag that reduces the risk of the driver and front passenger colliding with each other during a side impact

Security and Access Technologies

The BYD Dolphin 44.9kWh Boost includes the following security and access features:

  • Keyless Entry and Start: Unlock and start the car with the key in your pocket or bag.

Cargo Capacity and Towing Ability

The trunk offers a cargo capacity of 345 liters (12.2 cu ft). With the rear seat folded down, this expands to 1310 liters (46.3 cu ft).

The maximum roof load is 50 kg (110.2 lb).

The maximum permitted vehicle weight is 1978 kg (4361 lbs), and the base curb weight is 1568 kg (3457 lbs). This leaves a payload of 410 kg (904 lbs), including occupants. Options can increase curb weight and reduce payload.

This model is not available with a towbar and cannot tow a trailer.

Availability & Pricing

The BYD Dolphin 44.9kWh Boost had its world premiere on 8/13/2021, with deliveries starting in January 2022.

This model is available in Europe and China.

Alternatives to BYD Dolphin 44.9kWh Boost

In the rapidly expanding EV market, EVKX.net has identified several alternatives to the BYD Dolphin 44.9kWh Boost that are worth considering based on features, specifications, and pricing. While these models may not be exact matches, comparing them could help you make a more informed buying decision:

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