One of the biggest factors is heat. Lithium batteries don’t like high temps.
Also, they really hate sitting at 100% SoC, though I’m not sure if that contributes to the swelling. 80% SoC is commonly cited as a healthier place for lithium batteries to sit when “fully charged,” and, for that reason, some laptops (and other devices) allow you to limit the maximum SoC to 80% if your laptop sits plugged in most of the time.
Like, in general?
One of the biggest factors is heat. Lithium batteries don’t like high temps.
Also, they really hate sitting at 100% SoC, though I’m not sure if that contributes to the swelling. 80% SoC is commonly cited as a healthier place for lithium batteries to sit when “fully charged,” and, for that reason, some laptops (and other devices) allow you to limit the maximum SoC to 80% if your laptop sits plugged in most of the time.