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craig-westlake asked

Phoenix MultiPlus 12/2000/100 Auxillary charging - Voltage but no current

I have recently purchased a new boat and it has a older Phoenix MultiPlus 12/2000/100

I notice the Auxillary charging terminals have a voltage of around 13.8V but when connected to the start battery which is 11.7 volts no current flows into the battery or minimal (0.1 A) as measured by a clamp meter over the positive auxilly charging lead. I was expecting around 4A as per the Specs

Auxillary terminals are connected direct to Start Battery.


Thoughts?


battery charging
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kevgermany avatar image kevgermany ♦♦ commented ·
Might be high resistance between the Phoenix and starter battery. Bad connections, thin wire, long runs. What voltage do you see at the battery connections?
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