Neighbor is 74-year-old widow, manufactured home on 2 acres, which she maintains. 1 horse, 3 dogs. She was going to discard, asked if I could work my "magic" to try to get it running.
"We" are about a week in to seeing/testing if adding a trickle charger/maintainer (which she already had) to her utility vehicle will keep it ready to run when she needs it. I installed that so she does not have to access the battery, just plug it into the outside receptacle. Battery was tested as good, loses charge over time. Charging system reads a little low - like 13.2 volts, and it does have a parasitic draw of 3.8 mA. So far, so good.