Car batteries and recharging after starting

I wasn’t driving my car enough to keep the battery charged–three trips a week to the Y, about 4 miles each time plus a few trips to the grocery store. We got a solar charging panel to sit in the back window and it keeps it pretty well charged up if you are driving and parking in the sunlight.

My why has a 2018 Chevy Traverse. When she went into the hospital we didnt start it for 6 months. Fired right up when i did go to start it.