First, sorry for my bad english!

My laptop have a problem, like you can see in the battery stats, it stop without any warning and the battery will drain to 0 mwh.
I tried a battery calibration, worked well for the first time, went to almost 0% before shut down.

Now a few minutes ago when i started it up, it died and i had aout 52% of battery left. Plugged it, started it and in windows it showed 0% again, with 35minute to fully charge the battery.

Any ideas?