Best lithium Ah battery for running Livescope?

Between 12v-32v is the only requirement to operate correctly. The gls10 uses between 21w and 58w which is 1.75ah -4.83ah at 12v
 
I run a dedicated 12.8v/50ah battery and it works fine. Plenty of power and I can go several 8 hour days without needing a charge. I also have an onboard NOCO single bank lithium battery charger just for that battery.