A fix for USB charging bank's low current shutoff

I have number of USB power banks that I use for remote projects where I need continuous power. In one of my projects, the project can be in a low power state and the power bank shuts down because consumption is below a minimum current level.

I was thinking that if I had a BlinkStick that I could program how long between blinks and how long a blink would last, then I could prevent the power bank from shutting off from low current while at the same time minimizing the energy necessary to keep the power bank active.

Has anyone else had this problem and thought about how a blinkstick would help?