Hi D2Wilsn,
Welcome to the Heartland Owners Forum and Family. We have a great bunch of people here with lots of information and all willing to help and share their knowledge if needed.
I keep mine plugged in all the time, the converter will keep the battery up to a full charge this way. But you do need to check the battery on a regular basis to make sure it has plenty of water in it. I check my battery about once a month.
Enjoy the forum.
Jim M