
Two weeks of power (see writeup)
Did some testing with Winston KC9FVR’s Battery Box device running the Raspberry Pi500 and Monitor.
We maxed the RPi’s processes and ran up the power usage of the monitor/speakers to try for a worse case simulation, and found the unit had a theoretical 14.8 day capacity. Better than two weeks with the RPi500 setup using everything we could coax it into consuming.
We might have got a bit more efficiency trying various combinations of USB power cables, rather than going through the AC outlet on the battery box.
I’m doing some calculating incorporating the KX3, as the radio draws 3/4 Amps RX to 2.1 Amps in TX flat out. My best guess is the radio at full use plus the RPi500 setup would run off of KC9FVR’s battery box about 30 hours.
For a projected 8 hours max activation with everything running flat out, doing US Islands Activations or one of the [X]OTA events, a battery about 1/4 this size would work out. Hmm…
73
Steve
K9ZW





