Battery Degradation Estimator
Estimate Li-ion battery capacity loss based on cycles, DoD, and temperature. Enter values for instant results with step-by-step formulas.
Worked Examples
Example 1: Careful Usage
Problem:NMC Battery, 500 Cycles, 40% DoD, 25°C
Solution:Low stress. Loss ~3-4%.
Result:96% Remaining
Example 2: Heavy Usage
Problem:NMC Battery, 500 Cycles, 100% DoD, 40°C
Solution:High stress. Loss ~10-12%.
Result:88% Remaining
Frequently Asked Questions
Is degradation linear?
Not exactly. It typically has a 'knee' curve—slow degradation for a long time, then a rapid drop-off near end-of-life.
Can I reverse degradation?
No. It is a chemical change (loss of active lithium inventory). You can only slow it down.