I just used my new Solix C1000 to power my standard Whirlpool refrigerator during a power outage. I was shocked to see how quickly it discharged dropping from 100% to 1% in less than six hours. I switched it out to my also new C1000X which lasted almost twice as long (roughly 11 hours). Same refrigerator, same conditions. Since both Solixs are the same specs, except for the color scheme, I’m guessing the C1000 is defective and needs to be returned.
What else might be the cause of its low capacity?