M6 Pro MR6550 factory power adapter without battery error

I am using the power adapter and cable that came with the router. I believe the supplied power adapter has never supplied enough power, because when i use the router on high performance mode plugged in with the battery in, it slowly depletes the battery and shuts off eventually. It has done that since day 1. And when i try and run it without the battery using the supplied cable and adapter it displays the error message because it doesnt have enough power to operate and can’t pull more from the battery. If i use my anker adapter it works fine both ways. So i think Netgear supplied a weak power adapter that doesn’t supply enough for the device to run and later they updated the firmware to complain about it, without sending us a new adapter because they can just hide behind their paid support-only policy and force the customer to pay for it.