Genuine Lenovo Battery Not Attached, got this pop-up after 1 year of use without any problem, anyone got a solution? The batter is from Sanyo. : r/ thinkpad
Lenovo Yoga Not Charging - Get Rid of The Problem
Battery not charging when connected to the AC adapter - ThinkPad - Lenovo Support US
Is your ThinkPad's USB-C port not working? Upgrade its firmware. - CNET