u/nsheas

I bought my 17 Pro Max back in November. I’ve been strictly following the 20-80% charging rule and I don’t even use the phone for gaming. Despite all this care, my battery health has already dropped to 98% after 110 cycles.

​I’m not necessarily worried about the health drop itself, but I’ve noticed something frustrating: people who charge their phones to 100% and don't care about these 'best practices' often have 100% battery health at the same (or even higher) cycle count.

​It feels like this 20-80% rule is pretty much useless.