Hi all,
I just picked up one of these - a 280Wh portable power station from Jaycar. On sale at the moment for $550, down from $700.
https://www.jaycar.com.au/portable-2...erter/p/MB3767
I tested the rig with it and when slewing the HEQ5 at full speed on both axes with the camera cooler running at about 60%, the power draw was 40W. When looping the camera (1 second exposures, continually) and tracking, it was drawing below 20W.
Even allowing a hefty safety margin, that's a pretty solid 10 to 12 hours battery life.
The only issue i have is that when slewing on both axes at full speed, the voltage appears to drop significantly and the HEQ5's power LED starts blinking. It doesn't appear to affect the slewing speed, but I'll keep my eye on it when I am out in the field next.
Cheers,
V