Hi Sebbe!<br />Try this site<br /> http://www.marinan.com/klotterplank/motor/ <br />Alla talar svenska (everyone speaks swedish)<br /><br />loading or nått<br />charging or not
Just take a voltmeter reading at the positive terminal of your battery. It should be at 12 volts with the engine off. If it goes up to 14-16 volts with the engine running, it's charging.