I have an external 21700 battery bank which provides usb-power for my laptop. It provides enough watts for my laptop to charge its onboard batteries while providing the running power. This is rather silly: if I'm using the external battery then I intend to deplete it fully, so it seems inefficient to charge an onboard battery depleting the external one faster just to then deplete the onboard battery. This battery-charging-battery costs energy and charge cycles of both units.
Is there a way to tell my computer NOT to pull voltage to charge the system, but just to use that for running power?
Note: I'm using a 8th gen X1 Carbon (relatively new) with 10th gen Intel tech.