12-18-2014 09:26 AM
It depends how you want to use it.
If you want it to be plugged in all the times, not a problem. Go to Lenovo Energy Management (Red Icon in System Tray) and select "Optimized Battery Life".
This way the battery will only charge upto 60% and stay there.
If you want to travel and want the charging full, then change that option back and charge your laptop to 100%.