Hello,
I have recently bought the x1203, but it seems there is something wrong with it. It shuts down without any warning when the psu is connected when charging the battery. The setup is a Pi5 + a 4x SATA HAT. Here is how it behaves:
When on battery power, everything is ok from 100% all the way to 3.2V
When psu is connected and batteries are charged from ~50% -100% everything is ok
When the psu is connected and the battery is below ~50% and the disks are accessed it at first has problems charging (the charging LED goes off, and the battery indicators go on and off), then everything simply powers off as if all power was cut off. I used different psu units 12V 5A, 12V 10A every time the same behavior. It seems the high charging current is the problem here. The board can't power the PI, disks and charge the batteries at the same time. Is there any way to limit it?