With people having problems with the 240w adapter.
Please can they try ectool
sudo ectool chargecontrol
I am interested as to what the “Charge Mode” is saying.
It might be alternating between IDLE and DISCHARGING and NORMAL.
IDLE == Don’t charge, add battery if the PSU is not enough
DISCHARGING == Don’t use the PSU, only used the battery.
NORMAL == Use the PSU, and charge the battery if there is any power left over.