When buying a new laptop (and most other mobile devices with lithium-ion batteries), the manual often says to do a 'first charge' of a few hours with the device closed (and it is a common instruction from stores).
Is there some technical significance for this, or is it just good advice that makes sure your device will be fully charge? That is, if not done, will it affect the battery and it's capabilities for future use somehow?
P.S. Not to worry, this is a hypothetical question out of curiosity, I do intend to always follow such a 'good advice' even if it doesn't have a technical significance.