Ain't it a blast?? The 516 is a keeper! Ron wb1hga RaySoifer at cs.com wrote: Last fall, on ARRL's emergency power day, I ran my Argo V at 20 W (also CW) > with a 12 AH battery. It lasted for about 5-6 hours of operating. Maybe if I > had run it at 5 W it would have lasted all day.