I use one plugged into a 2amp wall charger. Anything less than 2amp charger, and it's not going to fire. So, I don't think you can use your computer's USB port to run it. Been using it for about 6 months, and it's still chugging along.
You can also pair it with a power bank with 18650 batteries. Just check that the power bank can put out 2 amps, and you're good to go.
You can also pair it with a power bank with 18650 batteries. Just check that the power bank can put out 2 amps, and you're good to go.