Hi all, I've posted this in the power/battery/charging issues thread but no luck there, I thought I might get more responses to my issue on a separate thread... I need to calibrate whatever reports the remaining battery percentage. Basically my reported battery life drops really really slowly down to about 82% (after several hours use) and then drops like a stone with the machine switching off with no warning. I've run the battery report utility: powercfg /batteryreport /output %USERPROFILE%\Desktop\battery_report.html and attached a screenshot of the report - you can see the numbers are completely off the wall! I've installed all the available updates and latest firmware. Thanks for any suggestions!