Do outbaord boat motors charge the battery?

Question

I have a 90 horse Johnson 1981 model does it have a altonator built in or do I need to charge the battery after every use this is the first outboard motor I have owned

Answer 1

Yes it should charge on its own. either by alt or an internal stator and regulator

Answer 2

It should charge the battery

It may not have a visible alt but it's flywheel sits in a set of coils that charge the bat

Yours may or may not have this

Take a volt meter and measure the volts before and after you start the motor.

If it's charging you'll see a voltage higher than 12.6 while the engine is running

Answer 3

They do "maintain" battery voltage while running, but are not designed to charge a dead battery.

Answer 4

yes they do charge the battery, however it charges very slowly, if you have a lot of electronics or large amp  and stereo sytejn it might not be able to keep up

Answer 5

you are in a much better position if you charge the battery separately and not depend upon the motor to keep it up.