A study[1] was recently posted[2] which found that for lithium-ion batteries, dynamic use lead to much better battery life compared to fixed-current discharges which is typically used in labs to determine battery life.

From the paper: Specifically, for the same average current and voltage window, varying the dynamic discharge profile led to an increase of up to 38% in equivalent full cycles at end of life.

This tracks well with actual real-world data on BEV battery performance in cars with decent battery management.

[1]: https://www.nature.com/articles/s41560-024-01675-8

[2]: https://news.ycombinator.com/item?id=42370438