|
Just a note, the Pi will probably use less power than that unless you're really pushing it, so 72 hours would likely be the minimum. Also, the batteries would be 12v and 3Ah, so the total capacity of the 12 batteries would be 432wh. Ah and wh are the capacity, like a water tank, A and w are the flow rates, like gallons/hour. Amps need to be listed with the voltage to be useful in most cases, watts are universal. You need to use watts in your case because of the batteries being 12v and the Pi using 5v.
For the solar panels, 20-30w would probably be enough for one Pi running 24/7.
|