Hello, I have about 2-3 years old g550jk laptop and it has something in battery.
It works just fine, except if I play some heavy game like wow legion alpha or fallout 4, because after those games, my battery led is just flashing and its status is "xx% available (plugged in, not charging)" And that % number never chance after that, its stay on one number were you charging or not.
I can still use it, but sooner or later it will crash because low battery, mostly at night when its on standby without power.
and after that, led is not blinking and it will charge normally.
Other option is to do bios update, that removes battery blinking as well and charging continues.
Blinking is about 1,5-2 blinks per second, and it is on if computer is powered or not, running or standby. only complete shutdown removes blinking (until I restart, of course)
Computer is:
g550jk, 15" i7 4710HQ, 750GB hybrid disc
installed windows 10, that blinking newer happened in W7, but that might be just a luck. and I don't think it started right after that.
Somehow it doesn't seem to be battery problem, because why would battery refuse charging before it has emptied completely? Tho, I hope its just battery, that's easy to replace and computer is still somewhat good