Technical overview
Specifications
Battery
40 kWh
Peak Charge
50 kW kW
Drivetrain
FWD
Connector
CHAdeMO
Drag Coeff
0.29
Weight
1580 kg
Live battery calculator
SOH Estimator — Nissan Leaf 40 kWh (2021)
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 Nissan.
What to check
Key Facts for Used Buyers
Degradation Tier: A — Above Average
The Nissan Leaf 40 kWh (2021) scores A-Tier for battery longevity. The transparency score of 84% 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 Nissan Leaf 40 kWh (2021) delivers approximately 125 mi of real range, compared to the 149 mi EPA figure.
Winter Range
In cold conditions (around −10°C / 14°F), expect range to drop to around 88 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 Nissan Leaf 40 kWh (2021)
Enter the odometer, get exact SOH, adjusted range, winter worst-case, and a degradation verdict in seconds.
Common questions
FAQ — Used Nissan Leaf 40 kWh (2021)
How much range does a used Nissan Leaf 40 kWh (2021) actually get?
At a steady 65 mph on the highway, the Nissan Leaf 40 kWh (2021) delivers approximately 125 miles of real range, based on its actual drag coefficient, weight, and battery capacity — compared to the 149 mi EPA claim.
What mileage is too high for a used Nissan Leaf 40 kWh (2021)?
Mileage alone is not the deciding factor for EVs. A well-managed 120,000-mile Nissan Leaf 40 kWh (2021) 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 ÷ EPA claim × 100. For the Nissan Leaf 40 kWh (2021), that's 125 ÷ 149 × 100 = 84%. Above 85% = relatively honest. Below 75% = significantly optimistic official claim.
What is the winter range of a used Nissan Leaf 40 kWh (2021)?
In cold conditions around −10°C / 14°F, the Nissan Leaf 40 kWh (2021) is estimated to deliver approximately 88 miles — computed via our V5.7 physics engine accounting for thermal battery losses and increased HVAC demand.