How Long Does Thinkpad Battery Last. The T420s can last up to 10hrs with both the 6-cell regular battery and snap-on battery. What you do on any given day reflects on how the battery performs.
A ThinkPad can last a long time however several things will eventually probably die. Answer 1 of 12. With the 9-cell battery alone that time crept up to 12 hours and 39 minutes long enough to work late at the office and use the X220 on both ends of your commute.
Battery in freezer.
As others have said the most likely things to go are the hard drive replace with SSD battery may want to buy a spare just in case CMOSBIOS battery should last several years CPU fan CPU thermal paste potential LCDscreen death. This has something to do with the laptops internal power management which changes if the battery isnt present If you use it without the battery installed and with the 65-watt adapter you cant get the CPU up to full speed. If the battery is at 0 it may take up to 12 hours of continuous charging. PatchySan Sep 7 2013.
