My X220 is running Windows 7 and I noticed that if I set the start charging threshold low enough, the battery doesn't get charged when plugged in. I'm concerned with ensuring the maximum life of my battery.
If I only take this laptop out for mobile use ocassionally, will it make sense for me to just take the battery out?
Or should I just leave the battery in hoping that the charge cycle don't add up over time and the battery quality will remain as if I had taken out the battery?
My system comes with an i3 and I use a 90w adapter that came with the docking station.
If you have a 90W adaptor, you can remove your battery as long as your AC supply is reliable.
Opinions may vary, but a 40% charge level is often recommended for batteries that will be stored outside the system for prolonged periods. Operating any laptop without the battery (AC only mode) increases the chances of data loss in the event of a loss of AC power. Keeping the battery in circuit is often considered good insurance.