In Reply to: Generator/Battery posted by Travis Webb on November 08, 2023 at 19:29:02:
Great help is always found here. The responses below reflect that. My first thought would be battery cables and their respective connections. Also, the connection from the solenoid to the starter post. The cable to the solenoid should be "big as your thumb", not a wimpy 12 volt car battery cable. The ground should be a strap, again not a wimpy car cable.
Even the right sized cables can be defective with age. Unseen corrosion inside the cable insulation will weaken the starting power.
Anyways, that is where I would start.