This Battery Replacement Time Predictor estimates how long your eBike battery will last before falling below your preferred health threshold. All lithium-ion batteries slowly degrade with each discharge cycle and with age. This tool provides a simple way to estimate remaining months of usable life based on charge cycles, battery capacity, average daily usage, and replacement threshold percentage.
Lithium-ion eBike batteries naturally lose capacity over time due to chemical reactions inside the cells. Every full charge counts as a cycle, and after around 600-1200 cycles most batteries will drop below 70–80% capacity. At that point, real-world range becomes noticeably shorter and charging becomes more frequent.
Most riders replace batteries when health falls below 70–80% of original capacity. This depends on required range. High-mileage commuters may notice performance reduction earlier while casual riders might continue using the battery for much longer.
The longest-lasting batteries avoid full charges, extreme temperatures, and deep discharges. You can extend life dramatically by charging only when necessary and keeping the battery cool.
Even small improvements in charging behavior can significantly delay battery replacement and reduce long-term costs.