Why is Lenovo battery for T440S lasts only one year? After the warranty ended, the battery that as new lasted more than 8 hour

Petertal

Estimable
Aug 31, 2015
1
0
4,510
0
I have a one year and one month ThinkPad T440S. When it was new, the batteries lasted more than 8 hours. A year after - the computer cannot run more than 1/5 hour on the same batteries. Why?
 

BigBadBeef

Estimable
May 30, 2014
34
0
4,590
4


https://www.youtube.com/watch?v=eTdseBKbWAE

Nothing produced can be allowed to maintain a lifespan longer than what can be endured in order to continue cyclical consumption.
 
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