Battery not charging

[Kens 85 Larson]

I knew the battery was weak in my 85 Larson because I left the vent fan on. DUH! I charged it up for 20 minutes and the boat started and it ran great for an hour. I turned it off. Battery was very dead. Why would battery not charge? Enough electricity was generated to run the engine. Battery gauge (volt meter?) never got out of the red zone while driving around. Stayed at 10 volts.

 

[Barnacle_Bill]

Re: Battery not charging

The motor runs off the stator, not the battery. The battery is needed to start the motor only. However you will damage your charging circuit if you run the motor without the battery. Test your rectifier first. If that is good test your stator.