BYD DOLPHIN 44.9 kWh Boost 2023 is positioned as a FWD electric hatchback with a practical focus on shorter everyday trips. For ownership planning, the key range numbers are not only 310 km official, but also about 261 km mixed and 204 km in cold highway driving.
In daily use, home charging takes about 6 h 54 min from 0-100%; on trips, the 10-80% DC estimate is about 38 min (est.), so highway use needs more patience. The practical side is documented with 5 seats, 345-1310 L cargo and 8 years / 200,000 km battery warranty. The main caveat is that road-trip charging is slower than newer long-range EVs. Range confidence is high, while specs completeness is partial.
Best fit
Daily drivingHome chargingFamily use
Main caveatRoad-trip charging is slower than newer long-range EVs.
Range reality
Official WLTP range
310 km
BEVDB mixed estimate
261 km
Cold highway estimate
204 km
Official vs BEVDB gap
-49 km / -16%
Charging reality
Home charging
0-100% 6 h 54 min
Fast charging
10-80% 38 min (est.)
10-80% range added
185 km Based on BEVDB combined consumption
Practical ownership
Seats
5
Cargo
345-1310 L
Battery warranty
8 years / 200,000 km
Data quality
Range confidence
High
Specs completeness
Partial
Estimate basis
WLTP data + BEVDB model
Missing key data
Payload, Roof load
Real Range
City - Mild Weather
326 km
City - Cold Weather
220 km
Highway - Mild Weather
253 km
Highway - Cold Weather
204 km
Estimates of actual range. The values given here are BEVDB estimates calculated from WLTP data and usable battery capacity, based on the BEVDB model. The BEVDB real-range card uses four fixed reference scenarios: City (Mild), Highway (Mild), City (Cold), and Highway (Cold). Mild means +20°C (70°F) without intensive climate-control use; cold means -10°C (14°F) with cabin heating. City speed is 50 km/h (30 mph), and highway speed is 110 km/h (70 mph). These figures are not official test results. Actual range will vary depending on speed, temperature, road conditions, road profile, load, tires, and driving style.
Estimated charging times are based on usable battery capacity, charging power and vehicle charging limits. Peak DC power is usually reached only briefly; average 10–80% power is more useful for estimating real charging time. Actual charging speed can vary by charger output, battery temperature, state of charge, weather, software and battery condition.
BEVDB estimates use WLTP-rated (or derived; falls back to NEDC when WLTP is missing) consumption and usable battery capacity to model city/highway ranges; the combined value is a weighted mix of city/highway and mild/cold scenarios. See the methodology and data sources for inputs, official source boundaries, fallback rules, and versioning.
Reminder: Range and energy consumption figures are estimates. Actual results may vary depending on weather, driving style, terrain, and other conditions. Review the BEVDB methodology for estimate boundaries and source labels. If this model page looks wrong, use Contact and include this page URL plus an official source link when possible.
