I agree it sounds like a voltage issue. May not be but sounds like it. When my cranking battery was going bad mine would shut off every time I cranked my boat. Lower your low voltage shut off level and see if it fixes the issue. Mine will also shut off like that if my son puts it on the boat. He never seems to get it plugged in good enough

If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then will I hear from heaven and will forgive their sin and will heal their land. 2 Chronicles 7:14