U.S. Xpress Test Results: 10+ Hour Rest Period HVAC and 300 Watt Solar Battery Charger
U.S. Xpress Test Results: 10+ Hour Rest Period HVAC and 300 Watt Solar Battery Charger
6 Pages> SUMMARY RESULTS Over the past several years, eNow, Inc. collected data from a U.S. Xpress Class 8 Sleeper Truck equipped with a battery-powered Air Conditioning (A/C) system and 300 W Solar Battery Charging system during an extended rest period. Based on the data collected during this period, we can conclude: • A/C with the 300 Watt solar system kept the cabin temperature below 75°F, and usually below 70°F throughout a 10-hour rest period despite outside tractor cabin temperatures that reached well over 100°F. Based on the slope of the discharge, we estimate the A/C could have been run for an additional 1.5 hours. • Solar connected to the truck battery did effectively charge both the truck battery and auxiliary battery, even during this period of heavy auxiliary load use. • Solar c
