Noob question (what else)

My MVP 20 arrived today as well but it does not say anything anywhere about charging the battery.
Yes of course I know how to plug it in but is it healthier to let the battery run dead and then charge or is it OK to top it up
over night?
for me, as far as charging my MVP :
I follow the practice of short-charging my batteries
there is NO memory
team motto: charge soon & charge often
not allowing it to get to low (avoid
yellow) when possible
and remove it from charge BEFORE it completes (early 4.1v)
(final saturation of charging puts stress on the battery)
un attended charging ANYTIME is not good (sleeping)
- - - -
Li-Ion does not need to be fully charged, nor is it desirable to do so...
in fact, it is better not to fully charge, because high voltage stresses the battery
every reduction of 0.10v% (charging) is said to double life cycle of battery
-charging the li-ion cell to 4.2v expect 300-500 discharge cycles
-charging the li-ion cell to 4.1v expect 600-1000 discharge cycles
so, charging the battery to 4.1v (not full 4.2v) will double the life of your battery
- - - -
Bonus Usage Tip
-holding both buttons:
-first display is, Coil Ωs
-second display is, Charge Remaining in internal battery
- - -
single button operation:
>push and hold (top button) "P" for watts control
>push and hold (bottom button) "U" for volts control
-the first display will always be Puff Counter (0-999)
(which actually just counts how many times you push your Fire button)
-second number displayed is the adjustable setting (v or w)
-- it is EITHER volts OR watts, never both
-- 3 clks off / 3 clks on (puff counter resets to "0" each time)
-- MVP memory maintains until you change it