Haflinger Charging Light
The charging system in my Haflinger is a generator system with an external voltage regulator.
In my vehicle I have replaced the old (Series 1 LR style) voltage regulator with a Bosch electronic model. Normally when the engine is below 1200RPM the ignition light is on and above that it is off (all normal for these vehicles). Normally my voltage meter shows 13.8v when driving around.
Recently I have noticed the voltage has been down as low as 11.5v when driving around with the lights on when normally with full electrical load it would be above 13v.
When testing the battery at rest it was always between 12 and 12.5v and even with the engine running it was the same indicating it was not getting enough charge. At the generator it was pushing out 14.8v (normal) but only about 12.5v at the battery indicating either a dry joint between the regulator and the battery or a dud regulator.
So I replaced the voltage regulator and all fixed - now back to 13.8v light load in the system so a faulty voltage regulator.
So my question is - how come the charging light all worked as normal when clearly the system was not generating enough power to recharge the battery. Below the usual 1200 rpm the charging light was on, and over 1200rpm the light was off even though the battery was not being charged.
Thanks
Garry
REMLR 243
2007 Range Rover Sport TDV6
1977 FC 101
1976 Jaguar XJ12C
1973 Haflinger AP700
1971 Jaguar V12 E-Type Series 3 Roadster
1957 Series 1 88"
1957 Series 1 88" Station Wagon
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