LiPo cycle life: reading the number honestly
A cycle-life figure says how many charge-discharge cycles a cell can deliver before its capacity falls to a defined level. This guide explains what the figure does and does not promise.
Dimension-callout pouch outline — the site's recurring diagram motif. It is a schematic, not a photograph of a product, factory or customer project.
Home / Guides
Cycle life is measured under specific test conditions: a defined charge rate, discharge rate, temperature and depth of discharge, with capacity measured at intervals until it reaches an end-of-life threshold. Change any of those conditions and the count changes. Deep discharges, high charge rates, high temperatures and long storage at full charge all tend to shorten life; gentle cycling, moderate temperatures and partial discharges tend to extend it. A single cycle number without its test conditions is therefore a rough indicator, not a guarantee of calendar life in your device.
That is why this site attaches every cycle figure to its own listing. The 803040 listing states 300 times for that listing; the 702030 drone listing states 500 times; the 150732 curved listing states 300 times; the 142030 and 601523 listings carry their own figures where stated. Not one of those numbers describes the family, and not one of them promises that your device, with its own usage pattern, will reach the same count.
For a buyer, the useful question is not the largest cycle number but the cycle life under your pattern. If your device cycles daily, cycle life dominates the total cost; if it cycles weekly, calendar ageing matters as much. State your usage pattern — cycles per day or week, depth of discharge, temperature — and ask what the figure means for that pattern, rather than comparing headline numbers across listings that were tested differently.