Engel, Dometic or Norcold. They all use the super efficient Danfoss compressors that draw less than 3 amps at 100% duty cycle. At 50 %, which is typical, they will draw about 1.5 amps/hour.
They make very small top load units that work great. I have been using an Engel and Dometic in my service van for almost 10 years. No problems!
Lew Farber...RVIA Certified Master Tech...ABYC Certified Master Marine Electrician
SOLAR TECH ENERGY SYSTEMS, INC.
AM SOLAR ...MAGNUM…VICTRON ENERGY...LITHIUM & LIFELINE BATTERIES…MARINE REFRIGERATION