Z510 Battery problems


Firecracker to the moon
First of all,I was watching a movie, battery was around 70% and it suddenly powers off, connected to charger and saw that the battery was 0 ( WTH?)

Then, I did a full charge,and noticed that the battery is discharging at an insanely slow rate.At 99%(it showed aprrox 3-5 hours rem), and was discharging at I guess 1% every 10-15 minutes which isn't normal, and then when it was around 70-75% it happened again.

I Do not know where the laptop bill is, whats the problem?Battery cell dead?


Geek in making
First try manual calibration drain the battery to full and then full charge it and along that what is the battery wear level?
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