Battery draining with external power while under load?

[Der Geist der Maschine]

you can also modify the software or configure to consune less power.

Last year, there was an power issue. I did measurements.

This year, the situation is different. Even under the slightest load, the battery takes over. This is also what Upokupo experiences ("writing this post in firefox").

I'm not sure what changed? New kernel (4.x vs 5.x)? New device tree tweaks? "Age"? What else?

Luckily, there is a fix and bypassing the battery.

Please try it out. It would be interesting to see if the laptop stays up. Maybe it shuts down as it can not fall back to the battery.