Thanks for your comment, I came around several batteries that hold up to 75-80% capacity over just one year of intensive usage, presuming your laptop has at least 4 years of use, in your opinion is the battery life considerably decreased in a practical sense? I mean 74% capacity is a harsh number to refer to but practically maybe is not that bad. I can only compare it to used ones I sometimes come by and have like 800 cycles from 2010-2012 I never owned one that goes over 300 cycles before I sell it to update, but it is also hard and non practical to compare 2021 models with 2012 models anyway.
I always kept my laptops plugged in most of the time, and also tried the "unplug it when reaches 100%" for a while but noticed no practical difference to keep it just plugged in, technical aspects are interesting also, for example the mAh % capacity a reference of storage capacity, combined with cycles tell you about chemical degradation inside the battery, high cycles may lower the voltage curve that the battery delivers thus forcing it to consume quicker to achieve the needed voltage and amp required from the laptop to work, same volt-amp capacity batteries from different sellers and-or different technical manufacturing processes can deliver very different voltage curves over time and that makes big difference on how they perform over long periods of time even being the same technical voltage and capacity.
