Battery Life Cycle Estimator

Battery wheel animation

Estimate how long your eBike battery will last during its lifetime based on capacity, voltage, cycles, and daily riding distance.

Enter your battery capacity (Ah or Wh).
Typical daily use is 20–40 km.
Used only when unit is Ah.
Typical lithium batteries last 500–1000 cycles.

This tool helps you estimate the total lifetime of your eBike battery by calculating how much distance it can cover throughout all its charge cycles. It provides a realistic prediction of how long your battery will last and when you should expect to replace it.

How the Battery Life Cycle Estimator Works

The calculator computes your total usable battery energy across its full cycle count and divides it by your daily usage rate. This gives you:

  • Total kilometers/miles your battery can deliver in its lifespan.
  • Total days, months, and years of usable life.
  • Estimated replacement time.
  • Lifetime value based on daily usage.

Typical Battery Cycle Ratings

Most lithium-ion eBike batteries last:

  • 500 cycles for standard 18650/21700 lithium packs.
  • 800–1000 cycles for premium branded cells.
  • 2000–3500 cycles for LiFePO₄ packs.

Example Calculation

If you ride 30 km per day and your bike battery lasts 800 cycles delivering 50 km per charge, your total lifetime is 40,000 km of usage. That equals roughly 3.6 years of daily commuting.

Factors Affecting Battery Lifetime

  • Charging to 100% frequently accelerates wear.
  • Heat reduces cycle life significantly.
  • Storing batteries fully charged shortens lifespan.
  • Avoid deep discharges below 20% for maximum lifespan.
Tip: Storing your battery at 40–60% charge and avoiding extreme heat can nearly double its lifetime.

Frequently Asked Questions

Q: What is a battery cycle?
A: One full charge from 0% to 100%, or multiple partial charges that add up to 100%.
Q: How do I maximize battery lifetime?
A: Avoid heat, avoid charging to 100% daily, and avoid deep discharges below 20%.
Q: Does charging speed affect cycle life?
A: Yes — fast charging increases heat, reducing cycle count over the years.
Q: When should I replace my battery?
A: When your range has dropped to 60–70% of original, or when voltage sag becomes noticeable.