How to maximise usb output current on lubuntu?

I have a pc stick running Lubuntu 17.10, kernel 4.13.0-19-generic.

my external hard disk always umounts while heavily loading.

and I have found the max current is 224mA of this external hard disk from system information.

how can i increase the max current?

thanks.

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the Finding Help page.