Francisco Alonso <[email protected]> writes: > I have been monitoring the power draw on the GW3000 for a few weeks now and > it sits solid in 162 mAh of current consumption, 5.25 V. Any UPS with a > greater capacity than 10000 mAh should last at least 2 days. At least, my > power bank did when I tested it.
Yes, but that's output capacity of 10000 mAh at 5V, not "contains a battery rated at 10000 mAh". A UPS that produces 120V (or 230V, 240V) is running an inverter, and you have to consider the usage of the UPS control circuit and the power required to keep the inverter going even if the only load is a USB power supply. My point is that you can't reason about linear loads with real 120V UPS units. A power bank, that is low-power DC only, and designed to be efficient at low loads, is another story. It's great that you actually tested! -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/rmi8qhtzaes.fsf%40s1.lexort.com.
