[Elecraft] K3 just goes off

[Bob]

Sounds like you need to get an extended gas cap and tank for your EU2000 --
I have a 6-gallon boat tank hooked up to mine and it will run at full power
output for well over 24 hours.  With that setup you would fill it with gas
at the start of the contest and just turn it off when you were done.  At
lower power demand levels it will run a couple of days without refiling the
tank.

Given the duty cycle of the rigs and the capacity of the battery, that
generator must have been off for real long time to burn through a 100 AH
battery.

73, Bob, WB4SON