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otrfun's avatar
otrfun
Explorer II
Feb 15, 2021

Cold Ambient Temps = Higher Alternator Voltage?

Our '16 Ram 3500 Cummins (220a alternator) typically charges around 14.3 - 14.4v about 95% of the time. On occasion charge voltage will drop to 13.9v on a long trip when the batteries get topped-off ...
time2roll's avatar
time2roll
Nomad
Feb 15, 2021
I would assume all is normal by oem design. This is why they dumb down the gauges in some to just show normal.

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