Range & Performance
EV Range Calculator
Estimate real-world driving range from usable battery capacity and consumption.
Primary Metric: Estimated Driving Range
Ownership & Economics Deterministic Model v1.2
EV Battery Degradation Calculator
Project multi-year battery capacity retention and State of Health (SOH).
Battery Pack & Age Inputs
Model State of Health (SOH) retention Projected Capacity Retention 43.24 kWh 86.5% State of Health (SOH)
Initial Pack Capacity: 50.00 kWh
Cumulative Capacity Lost: 6.76 kWh
Warranty Threshold (70%): Healthy (>70%)
Year-by-Year Degradation Trajectory
Mathematical Formula & Physical Model
Applies empirical compound annual degradation decay rates across cumulative operating years to project remaining storage capacity.
1
Retention Ratio = (1 - (Annual Degradation Rate% / 100))^Years 2
Projected Capacity (kWh) = Initial Capacity (kWh) × Retention Ratio 3
Lost Capacity (kWh) = Initial Capacity (kWh) - Projected Capacity (kWh) Worked Example
Reference Benchmark8-Year Battery Lifespan Projection
A 50 kWh lithium iron phosphate (LFP) pack with an empirical 1.8% annual degradation rate over an 8-year ownership cycle.
Initial Capacity 50 kWh
Annual Degradation Rate 1.8%
Ownership Period 8 Years
Frequently Asked Questions
What is the average annual degradation rate of modern EV batteries?
Real-world fleet data from modern liquid-cooled lithium-ion packs indicates an average degradation rate of 1.5% to 2.2% annually, with the steepest degradation occurring in Year 1.
How does cell chemistry (LFP vs NMC) impact degradation?
Lithium Iron Phosphate (LFP) cells typically tolerate higher thermal thresholds and full 100% charging cycles with lower degradation compared to high-energy-density Nickel Manganese Cobalt (NMC) chemistries.
What best practices maximize battery health?
Keeping daily charging between 20% and 80% SOC, minimizing frequent ultra-fast DC charging in high ambient temperatures, and avoiding leaving the pack sitting at 100% charge for extended periods.