> The battery health management feature in macOS 10.15.5 is designed to improve your battery's lifespan by reducing the rate at which it chemically ages. The feature does this by monitoring your battery's temperature history and its charging patterns. > Based on the measurements that it collects, battery health management may reduce your battery's maximum charge when in this mode. This happens as needed to ensure tha…
Swollen batteries were a result of design/manufacturing defects. It was certainly a common issue 5-10 years ago but should hopefully be a thing of the past by now. Modern batteries should never swell, but will still wear out over time. Smarter battery management should be able to extend their lifespan.
It's the battery equivalent of the halting problem in software.
No manufacturing and design process is perfect, there will always be errors. If you do find a perfect design and manufacturing process, I think you wouldn't be posting here on hackers news but would be drinking champaign with Bill Gates and Warren Buffet.