I have new X201 Tablet (2985-DHG). It has some problems with battery:
1) when I fully dischagre (of cause with switching off all timers in power manager, disabling sleep and hibernate on low and very low battery) and try to charge it again, charging stops at 35% at powered on laptop.
2) the wear level (as shown in CPUID HWMonitor) is negative!
3) when i fully discharge laptop (as described in 1st paragraph) and charge it without switching on about 20 hours it charged to 45% and when i powered on laptop a battery has 45% and doen't charging.
When I press "Perform reset..." in Battery maintenance window plug icon near Power manager gauge in taskbar is changing to battery with 2 circle arrows (like recycling) and screen brightness slightly lowers for 5 seconds, and then becomes back plug icon and screen brightness became normal.
Can i fix it with software instruments or i need to change battery?