What device do you have...exact details if you want good help?
What make, model and year is it installed in?
Other than that, we are trying to be mind readers
2022 Jayco Pinnacle 32RLTS, Onan 5500, 380 Watts
Solar, GoPower MPPT, Four 6 Volt batteries, EMS-HW50C, Hughes Hardwired Autoformer
2017 Ram Cummins 3500, 4x4, Dually Aisin, 3.73