You don’t HAVE to, this won’t probably have an impact in the long run. I myself recalibrates maybe once per month. But it is easier to handle your battery level precisely when the measures you get are themselves precise. And it is more conveniant to not be caught offguard with less battery than anticipated. But yeah not mandatory to do it too often, just regularly
Why would you recalibrate every two weeks? I did it once after 2 years and it made no difference
You don’t HAVE to, this won’t probably have an impact in the long run. I myself recalibrates maybe once per month. But it is easier to handle your battery level precisely when the measures you get are themselves precise. And it is more conveniant to not be caught offguard with less battery than anticipated. But yeah not mandatory to do it too often, just regularly