I got an Arduino project that need a constant source of power. Rather than dealing with batteries, I want to use a power bank like this:
Better yet, I want to keep the power bank plugged in to the wall outlet using a wall charger like this:
The USB wire coming out of the power bank, I can modify it and connect it to the 5V on the Arduino (Pro Mini 5V version). Is it safe to do so? The application uses a stepper motor that draws around 200mA and only runs intermittently.