Why should I purchase a Hybrid trailer if I expect to only need less than one week of operation at a time?

It is all about the reliability that it is up and operating, and the life of the batteries. When the batteries are run deep into the capacity of the battery, the life expectancy is significantly reduced each time this occurs. The hybrid trailer systems restrict the batteries from discharging as deep, and provides frequent charges greatly extending the life expectancy of the batteries. Leaving the system on a never-ending charge is not the best either, the best is just how the system normally operates where the batteries are charged and discharged on a cyclical schedule.