My old Dell Inspiron's battery swelled up after about 18 months, and I couldn't figure out why. I read a support article that said keeping it at 100% charge all the time stresses the cells. Now I use the built-in battery saver mode that caps the charge at 80% when it's on my desk. The new battery has lasted over two years with no issues. Anyone else have a good software or habit for managing battery health?