My car will not start after is ran for a while it has 4 batteries maybe one is bad I don't know as I am old school
Could some 1 please help me as to what I can try

. Check for codes.

. Check for spark.

. Check fuel pressure. Also, ensure there's plenty of fresh gas in the tank. When was the fuel filter last changed?

Why four batteries?

Never saw a car with 4 batteries unless it was a Hybrid or all electric.

No way does it have 4. My moms last car was one of those from that era and it had ONE.