A 20Ah powerbank would be a bit less that required. A 28Ah should be enough. Just need to remember that the Ah rating of powerbanks is at the (nominal) 3.7v Lithium cell voltage.My ancient APC UPS can power a Pi3B plus 8 inch 400 × 1280 display for 4 hours. I mean we are looking at less than 20W for 4 hours? No need for a car battery.I think you will need a car battery to last 4 hours.
Statistics: Posted by W. H. Heydt — Wed Jan 22, 2025 1:34 am