This Battery Health Score Calculator works similarly to how electric vehicles estimate battery degradation. It evaluates your eBike battery condition using multiple factors including cycle aging, calendar aging, depth of discharge, and temperature stress. The result is a simplified percentage score that reflects remaining battery health and real-world performance capability.
What Is Battery Health Score?
Battery health score is a percentage that indicates the overall condition of a lithium-ion battery compared to its original state. EVs commonly use a similar calculation to display battery health inside the vehicle. A higher score means more usable energy and longer riding range.
- Cycle degradation
- Calendar aging
- Thermal stress
- Depth of discharge behavior
- Cell chemistry characteristics
How EV-Style Battery Degradation Works
Electric vehicles calculate battery condition based on cumulative wear. Every cycle reduces capacity slightly and every year causes additional chemical aging. High temperatures accelerate breakdown while shallow cycling extends lifespan. This calculator uses similar logic to approximate the remaining health of an eBike battery.
- Low temperature = slower aging
- High temperature = fast aging
- Deep discharge = faster degradation
- Shallow cycling = maximum lifespan
Tesla, Nissan Leaf and other EVs use comparable algorithms based on accumulated stress and time.
How to Improve Battery Health Score
You can improve battery health by reducing stress factors and optimizing charging habits. Even small behavior changes can significantly slow degradation and maintain a higher score for longer.
- Use shallow cycles (20–80%)
- Avoid frequent 100% charges
- Keep temperature under 30°C
- Store battery partially charged
- Charge slowly when possible
Many EV manufacturers recommend keeping the battery indoors in moderate temperatures to preserve long-term health.
Frequently Asked Questions
Q: What is considered a good battery health score?
Most new eBike batteries score close to 100%. Anything above 80% is generally considered healthy for daily use.
Q: How fast does battery health decrease?
Typical loss is around 2–4% per year depending on temperature, charging habits, and depth of discharge.
Q: Can battery health be restored?
No. Degradation is permanent. However, better usage practices slow further damage.
Q: Is cycle count the most important factor?
Cycles are important, but temperature and depth of discharge often have bigger long-term impact than cycle count alone.
Q: What health score means battery should be replaced?
Most riders start noticing performance issues below 70% but this depends on required range and riding style.
