

8·
14 days ago- https://budgetlightforum.com/ flashlights et cetera
- so many automotive forums
- https://eevblog.com/forum electronics engineering
- https://www.audiosciencereview.com/forum/ audio, lots of diy
- https://www.finishing.com/ - metal anodising/plating/finishing. This incredible forum has been running since before the internet, originally a BBS.
- https://www.automaticwasher.org/ washing machines and dishwashers
- https://elektrotanya.com/ electronics repair
The replacement battery you bought in 2017 was the last of the genuine stock for that 2012 Thinkpad model. Now it’s only poor quality aftermarket. Maybe just stick with the existing genuine battery – its 47 second runtime should be enough time for AC loss to trigger a custom script to make it hibernate.