CONGRATULATIONS on the JAYCO!!!
...and WELCOME TO JOF!!! The members here are GREAT!!! There is a lot of GREAT information to be found here. I am sure that you will have information and pictures to share with us... so please do!!
Not sure if your 5er came with a disconnect switch? Some of the JAYCO installed disconnect switches do not TOTALLY disconnect the battery from the trailer. The automatic leveling system is one that I believe stays connected.
Until you figure out if you have a switch or do not, disconnect the battery cable between trips, or leave it hooked up to shore power.
Also, since your battery has already been drained, you will need to keep an eye on it to see if it is still ok.
Do you have a multimeter to check voltages and current?
Don
My Registry
RVing with SOLAR Not sure if your 5er came with a disconnect switch? Some of the JAYCO installed disconnect switches do not TOTALLY disconnect the battery from the trailer. The automatic leveling system is one that I believe stays connected.