Forum Discussion

specware2020's avatar
specware2020
Explorer
Feb 04, 2022

Is it normal for an Alternator to generate 15 V+ output?

The refrigerator on my Class C MH (2020 Coachmen Freelander on Chevy 4500 chassis) runs on 12V DC only. Recently, the refrigerator controller started to put out error code indicating “the operating vo...
Class C
Matt_Colie's avatar
Matt_Colie
Explorer II
Feb 04, 2022
Spec,

Yes, that is way high for an alternator output. If you are seeing 15.4 at the battery, it is not going to be useful for very much longer either. At 15.4, it is outgassing like it left a Mexican restaurant and when the electrolyte (water/acid) in it gets low, the plates will start to flake and that will be all she wrote....

Matt

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