69J3D119-60123456789Electrical systems9Symptom: Battery becomes weaker quickly.•Check the charging system.Measure the Rectifier Regulatoroutput peak voltage.Replace the stator coil.Out ofspecification?Out ofspecification?Replace the Rectifier Regulator.NoNoYesYesMeasure the output peak voltage of the stator coil.Replace the battery, and thencheck the voltage of all electri-cal equipment on your boat.Bracket unit / Electrical systems