['49 Ford Coupe]

Alternator intermittent diode tree failure will run down the battery, but not always.. get a clamp-on DC amprobe and check alternator output wire everytime you shutdown ..

 

['49 Ford Coupe]

Did you get a clamp-on DC amprobe? It's well worth the investment... 'specially since the fault is alluding you..... https://www.amazon.com/dp/B07Z398YW...nkCode=ogi&psc=1&tag=shopperz_origin1-20&th=1

 

['49 Ford Coupe]

Hey, green monster, did you read my recommendation? It might cost you $50..