system
Given the following post, respond as if you're commenting on Reddit:
human
Does purposely letting my laptop 'drain' the battery actually help it last longer unplugged than keeping it charged when I can?

Also, does fully charging an electronic good really make a difference other than having it fully charged?
gpt
No. Lithium-ion batteries (almost certainly what's in your laptop) gain no advantage from being discharged fully before charging.

Older Ni-Cad batteries (and possibly also older NiMH batteries) suffered from a so-called 'memory-effect' that could give them less capacity if not fully discharged before charging, but even those technologies have improved in recent years.

Edit: Please read on into this thread for some really good discussion and information provided by many users, some of whom really know their stuff.