Independent Battery Analysis

Used Mazda MX-30
Battery Audit

2021 · FWD

Independent physics-based analysis. Real highway range 108 mi at 65 mph vs the manufacturer's 124 mi EPA claim — a 87% transparency score.

A-Tier — Above Average
NMC
FWD
CCS
Manufacturer Transparency
87%
Real ÷ EPA claim × 100
EPA Claim
124 mi
Real at 65 mph
108 mi
Winter worst
77 mi
SOH @ 100k mi
86%
Technical overview
Specifications
Battery
NMC
Peak Charge
40 kW kW
Drivetrain
FWD
Connector
CCS
Drag Coeff
0.32
Weight
1645 kg
Live battery calculator
SOH Estimator — Mazda MX-30
State of Health
Capacity Loss
Adjusted Range
Battery health
Uses brand-calibrated Power-Law degradation model. A-Tier coefficient applied for Mazda.
What to check
Key Facts for Used Buyers
Degradation Tier: A — Above Average
The Mazda MX-30 scores A-Tier for battery longevity. The transparency score of 87% 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 Mazda MX-30 delivers approximately 108 mi of real range, compared to the 124 mi EPA figure.
Winter Range
In cold conditions (around −10°C / 14°F), expect range to drop to around 77 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 Mazda MX-30
Enter the odometer, get exact SOH, adjusted range, winter worst-case, and a degradation verdict in seconds.
Free SOH Audit →
Common questions
FAQ — Used Mazda MX-30
How much range does a used Mazda MX-30 actually get?
At a steady 65 mph on the highway, the Mazda MX-30 delivers approximately 108 miles of real range, based on its actual drag coefficient, weight, and battery capacity — compared to the 124 mi EPA claim.
What mileage is too high for a used Mazda MX-30?
Mileage alone is not the deciding factor for EVs. A well-managed 120,000-mile Mazda MX-30 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 Mazda MX-30, that's 108 ÷ 124 × 100 = 87%. Above 85% = relatively honest. Below 75% = significantly optimistic official claim.
What is the winter range of a used Mazda MX-30?
In cold conditions around −10°C / 14°F, the Mazda MX-30 is estimated to deliver approximately 77 miles — computed via our V5.7 physics engine accounting for thermal battery losses and increased HVAC demand.
Transparency Score
87%
Mazda MX-30 vs EPA claim
Real 65 mph
108 mi
EPA / WLTP
124 mi
Winter −10°C
77 mi
Tier
A — Above Average
SOH at 100k mi
86%
Enter your mileage
Get your exact SOH
Full audit with adjusted range, degradation tier, and optional PDF report.