Li-Ion (Lithium Ion) which is what type of battery I'm sure is within this laptop, is best never completely drained nor completely charged to 100% and keep in mind, this is what professionals are saying and have been saying for several years about Lithium-Ion batteries not just myself.

One of the best articles I've read on this particular issue regarding Li-Ion batteries, was not to completely charge these types of batteries to 100% and, try to not allow it to go below 40%. Definitely never try to allow to completely and fully drain either. With Lithium-Ion batteries, I guess the hardest things is either charging all the way up to 100% or allow the battery to completely discharge to 0%, just not at all good for these types of batteries.

They would typically say try and keep your Li-Ipon batteries between 40% to 80% and this is many professionals opinions regarding this matter, but by all means continue to do whatever it is that you do (which is what most of us do anyways).