low/no charging

This is always, always "back to basics 101"

Where do you HAVE power?

Where do you LOSE power?

Could be battery is dead?

Most probably is a bad battery connection.

Use a meter, or test light, and check

Power at the battery? Turn on the headlight switch, any headlights? NO? Leave the switch ON

WHY? leave the headlights on? Because this "loads" the system so you can find the problem.

Check right at the battery POSTS, power? yes?

Check right at the battery post CLAMPS, power? yes?

Move one probe to engine block, leave the other on the positive clamp, power? yes?

Move the hot probe to the starter relay stud, power? yes?

TRACE where the fuse link goes from the starter relay stud to the bulkhead connector. Leave one probe on engine ground. Stick the other probe into that bulkhead terminal. Power? No? Wiggle it around. Wiggle the CONNECTOR around. Watch for headlights.