1989 Honda FL400R Pilot Service Manual, Page 226Get this manual
BATTERYCHARGING SYSTEM Set the temperature switch to 'HIGH" or 'lOW" depending
on the ambient temperatureHIGH: 15'C 150'F) or higher lOW: 15'C 150'F) or lower Push in the '9.5 Ah-16Ah"test button for three seconds and read the condition of the battery on the meterNOTE
Be sure to push the correct test buttonFor the first check, DO NOT charge the battery before testingCAUTION Tester damage can result from overheating when:the test button is pushed in for more than three seconds- testing more than one battery and the lester is not allowed to cool for at least one minute between tests- more than ten tests are performed consecutively without allowing at least 3D-minute cool-down perioda Buttons The battery is OK if the meter reading registers in the GREEN