That really helpedahoroba wrote: ↑It runs on 5V DC voltage; in principle, it should work on any power source that can deliver 5V DC (even taking 5.5VDC as per USB specs).
But finding a battery capable of lasting 1 month is almost impossible or ultra-expensive.
Assuming the device draws 1.5A per hour at full load, that is 36Ah per day, or over 1000Ah per month at 5V. To put it in context, most car batteries (the lead acid kind) have a reserve capacity of 70Ah at 12V, so maybe 150Ah at 5V (assuming no losses in conversion from 12V to 5V).
You would need more than 7 fully charged car batteries (and a convertor from 12V to 5V) to run this device for 1 month continuously at full load. They do sell suitcase sized, 1000Ah Lithium ion batteries for $2000-$3000 each.
Thanks