There is no such issue. You may begin to charge at any point. I will not duplicate battery discussions such as batteryuniversity.com and such.
The GE60 is quite the power drain so battery time will be pretty short when the machine is working hard. I'd just turn off the laptop and plug in the charger and let it charge overnight.
hi, today I bought a new battery for my ge60. by default it was at 60% then I foolishly plugged the charger, then realized the user manual said it should be discharged to 5% before first full charge. then I immediately unplugged the charger, it charged only 3%.
after this the battery started to drain so freaking fast. is there any chance i can save my battery? or should i get a new one....

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