Technical overview
Specifications
Battery
87 kWh
Peak Charge
160 kW kW
Drivetrain
FWD
Connector
CCS
Drag Coeff
0.29
Weight
2117 kg
Live battery calculator
SOH Estimator — BYD Seal U DM-i (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 Seal U DM-i (2024) scores A-Tier for battery longevity. The transparency score of 82% 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 Seal U DM-i (2024) delivers approximately 256 mi of real range, compared to the 311 mi EPA figure.
Winter Range
In cold conditions (around −10°C / 14°F), expect range to drop to around 190 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 Seal U DM-i (2024)
Enter the odometer, get exact SOH, adjusted range, winter worst-case, and a degradation verdict in seconds.
Common questions
FAQ — Used BYD Seal U DM-i (2024)
How much range does a used BYD Seal U DM-i (2024) actually get?
At a steady 65 mph on the highway, the BYD Seal U DM-i (2024) delivers approximately 256 miles of real range, based on its actual drag coefficient, weight, and battery capacity — compared to the 311 mi WLTP claim.
What mileage is too high for a used BYD Seal U DM-i (2024)?
Mileage alone is not the deciding factor for EVs. A well-managed 120,000-mile BYD Seal U DM-i (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 Seal U DM-i (2024), that's 256 ÷ 311 × 100 = 82%. Above 85% = relatively honest. Below 75% = significantly optimistic official claim.
What is the winter range of a used BYD Seal U DM-i (2024)?
In cold conditions around −10°C / 14°F, the BYD Seal U DM-i (2024) is estimated to deliver approximately 190 miles — computed via our V5.7 physics engine accounting for thermal battery losses and increased HVAC demand.