So yesterday when i was done using my computer and tried to shut it down it wouldnt shut down, and when i would click shut down it would go to the lockscreen and i was unable to shut it down and had to press the power button to fully shut it down, i dont thin this is good for the machine to continuosly do but i had no other way of turning it on. Then it looked like it shut down as there was no light coming from the power button however when i opened the laptop in the morning it was booted and in the lockscreen. Then i shut it down and when i turned it on now it brought me to the white dignostic type screen and said something like your battery is reaching the end of its usable life please plug in your adpater, and then it gave me another message telling me about me using the different wattage compare to what i am supposed to use, and then it told me to run diagnostics and it gave me the error of the battery reaching the ned of its usable life, then it shut down and when i boot it again the same thing came again and told me to run diagnostics with the same error but this time the screen flashed in red before turning off. The third time i was able to boot properly and now i am writing this to you. I have not used any different charger with a different wattage as you suggested me to use my regular dell charger. What is the reason for this error. ( oh yeah i forgot to mention that i got this battery reaching the end of its usable life while we were testing for those fps issue when i first mentioned about the fps issue but when i checked the battery status it said healthy now its fair) is my battery damaged?