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Old 11-11-2017
Steelwheels's Avatar
Steelwheels Steelwheels is offline
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Join Date: Aug 2011
Location: Albuquerque & Downers Grove
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Default Onan DKD alternator

My generator appears to be over charging my generator battery. When I run it it pegs the DC volt gauge, when I put a voltmeter on the battery same thing it keeps running up 16volt maybe higher.

Is this normal ? Is my alternator bad or is there a separate voltage regulator ?
Kiki B
Downers Grove, IL
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Old 11-15-2017
bwinter1946's Avatar
bwinter1946 bwinter1946 is offline
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Join Date: Mar 2009
Location: Madera
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Unlikely that is normal. I would expect to see something closer to 13.5-14.5 volts.

I would assume the regulator is bad. Unknown to me if it is an internal or external regulator. Perhaps someone else will jump in with experience on this type of unit.
Brad Winter
Madera, California
1997, 37' BMC
1999, Jeep Cherokee, Toad
1970, VW Baja Bug, Alternate Toad
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