I went with a Hardkorr 4WD battery box (2x cigarette ports, 2x USB) and a Renogy 50AH LiFePO4 battery. Powers my NUC, portable monitor, HEQ5 Pro mount, dew heater, ZWO 1600MM camera cooled to -15C and charges my iPad while I am playing Hearthstone or Slay the Spire. Lasts all night and barely dropped voltage (from 13.4V to 13.0V) so plenty of capacity left over.
I recently added a second battery so I now have 100AH and recharge it every... few months.
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