Re:The ThinkPad T420 – the last laptop you'll ever need
by diggernet on Monday February 06, 2023 @04:51PM
(#34684954)
Check out DuracellDirect [1].
I had the same concerns as you when I needed new Thinkpad batteries in 2019. Absolutely no complaints. They are still going strong today.
[1] https://www.duracelldirect.com/