Harley Battery Not Charging? Work Through It in Order

Start with the cheapest checks before you buy parts.

1. Battery: a healthy, fully charged 12 V battery reads about 12.6 V at rest.
2. Connections: clean and tighten the terminals and the main ground.
3. Charging voltage: with the engine running above idle you should see roughly 13.8 to 14.6 V across the battery.
4. Regulator connector: look for burning or corrosion.
5. Stator: test as described in our stator guide.

Harley won’t start, just clicking

A single click or rapid clicking usually means low battery voltage or a poor connection. If the battery is good, check the starter relay, solenoid and cables.