Technical overview
Specifications
Battery
60.4 kWh
Peak Charge
88 kW kW
Drivetrain
FWD
Connector
CCS
Drag Coeff
0.29
Weight
1451 kg
Live battery calculator
SOH Estimator — BYD Dolphin Long Range (2024)
State of Health
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Capacity Loss
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Adjusted Range
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Uses brand-calibrated Power-Law degradation model. A-Tier coefficient applied for BYD.
What to check
Key Facts for Used Buyers
Degradation Tier: A — Above Average
The BYD Dolphin Long Range (2024) scores A-Tier for battery longevity. The transparency score of 74% tells you how honest the manufacturer range claim is at real highway speeds.
Real vs. EPA Range
At a steady 65 mph on the highway, the BYD Dolphin Long Range (2024) delivers approximately 253 mi of real range, compared to the 340 mi EPA figure.
Winter Range
In cold conditions (around −10°C / 14°F), expect range to drop to around 184 mi — computed via our physics engine, not a flat percentage.
Charging History Matters
Frequent DC fast charging and consistent high-SOC storage accelerate NMC degradation. Ask about charging habits or request a battery health report from the manufacturer's app.
Before you sign anything
Red Flags to Check
Any battery warranty replacement on record — demand full documentation
Missing service history or software update log
Seller unwilling to allow a pre-purchase inspection
Any signs of flood or structural damage
Range on the dash significantly below our estimate for the stated mileage
Run the Full Audit on This BYD Dolphin Long Range (2024)
Enter the odometer, get exact SOH, adjusted range, winter worst-case, and a degradation verdict in seconds.
Common questions
FAQ — Used BYD Dolphin Long Range (2024)
How much range does a used BYD Dolphin Long Range (2024) actually get?
At a steady 65 mph on the highway, the BYD Dolphin Long Range (2024) delivers approximately 253 miles of real range, based on its actual drag coefficient, weight, and battery capacity — compared to the 340 mi WLTP claim.
What mileage is too high for a used BYD Dolphin Long Range (2024)?
Mileage alone is not the deciding factor for EVs. A well-managed 120,000-mile BYD Dolphin Long Range (2024) can outperform a 40,000-mile example with poor charging habits. Run our SOH audit to get the real picture.
How does the transparency score work?
The score is: Real Range ÷ WLTP claim × 100. For the BYD Dolphin Long Range (2024), that's 253 ÷ 340 × 100 = 74%. Above 85% = relatively honest. Below 75% = significantly optimistic official claim.
What is the winter range of a used BYD Dolphin Long Range (2024)?
In cold conditions around −10°C / 14°F, the BYD Dolphin Long Range (2024) is estimated to deliver approximately 184 miles — computed via our V5.7 physics engine accounting for thermal battery losses and increased HVAC demand.