I never calibrate either.
I think the last time I did so was in 2000. A NiCd / MiMH battery, I suppose.
Calibration is the act of aligning the value shown on the gauge to the actual value. So you are not 'calibrating your battery', you are 'calibrating your battery's gauge'
Calibration has nothing to do with 'battery care'.
I read so many conflicting views about breaking in a new battery to ensure a long lifespan.
But it seems that some of you guys don't worry about it.
Nobody publishes the data upon which to base a rational decision.
Batteries are components of the 'Battery management systems' within our computers so they should not be considered in isolation anyway.
So much of the current advice matches that given for previous generations of battery technologies that I worry that the advice has merely been cut & pasted from earlier documents without any thought being given to its possible continued applicability.
Your first link incorrectly refers to, "Tests conducted by battery university". But that pretentiously-named website makes no claims to have conducted any tests itself. It does not even identify its data sources.
BatteryUniversity said:
The information is compiled from the manufacturer's specifications, test labs and crowdsourcing. The tutorials differ from scientific papers by taking average readings because lab tests cannot always be repeated in real life.
That pretentiously-named website also claims to be based on an
indispensable book about batteries. It does not mention that the website & the
indispensable book are written by the same person.
Perhaps he had something useful to say a decade ago for previous battery technologies.
As for
BatteryUniversity said:
The tutorials differ from scientific papers by taking average readings because lab tests cannot always be repeated in real life.
That is utter cobblers. Perhaps it is an attempt to mask the selection of data to fit the conclusion that has already been decided upon.
Dell support now say that there is no point taking any precautions and that we might just as well fully charge our lithium batteries all the time.
my ditty - Dell Tech support video about battery use [post #8] - TenForums
But they don't publish the data upon which that recommendation is based either.
Some purchasers of new Dell systems say that Dell have withdrawn the utility that used to let users choose to limit charging to 80% etc.
All the best,
Denis