In 2016 I bought used ThinkPad X220 with iCore 5-2540M, 4 GB ram, Intel HD 3000, 320 GB HDD. It worked great for 5 years.
This year I wanted to buy IdeaPad but heard about problems with dying batteries (especially after battery reset). Around the same time mine X220 started to have problems with battery also. I used a replacement from Greencell and until then it worked fine. Then it started to drain rapidly and turn off without a warning about low battery level.
I found answers online that Lenovo makes something that batteries die fast. I decided to test this idea. I upgraded Lenovo System Bridge and after the restart there was black screen with warning that I am using non-original battery and it may charge poorly or not charge at all. And exactly that happened. I uninstalled Lenovo System Bridge and it helped for some time but lately battery ceased to charge completely. It is not so old, just one year and I have 3 laptops so X220 was not used 24/7. Coincidence or not? I do not know but I will not buy another Lenovo.