The car batt and power inverter works great. I did that for 4 days last year. Ran power head lights for a shorter time then normal also fan for cooling it was summer so that was our issue. Every 5 or 6 hours hook a charger upto the batt n helped keep it charged ran our van while recharging the batt in the house n saved evverything but a kole tang that got beat up by our pinkspot gobie cause they were the 2 pigs in tank lol. Sorry ya lost power but hope its back soon for you.