Originally Posted by Simi 60
Have you turned it off and back on again?
Simi, that's just mean...
OP - Check your battery switches. Depending on who/how your boat is wired, the battery charger may be upstream of the switches so that if they are turned off, they do not allow charge current
to pass through. Then the basic 12V loads like auto bilge
pumps, small lights, or other such parasitic loads will easily drain off the battery over the course of a month if left unattended and not charging
If you can access the back of the battery switches and have a meter, see if one of the terminals is hot when the charger is turned on. The charger will show 0 amps being sent if the batteries are disconnected - there's nothing wrong with the charger. If it doesn't sense a voltage below its threshold, it doesn't send charge current
. That tells me the batteries aren't connected to it.
The AC outlets will be on an entirely different circuit that is directly tied to shore power
, not an inverter
from the batteries (apparently). My boat's set up like that at the moment, though I'm changing it over to onboard inverters later.... but that's beside the point of your question.
1. Check position of the switches.
2. Verify shore power is connected and battery charger is ON.
3. Test terminals on back of battery switches with a meter, or, turn battery switches to the other position then look at charger to see if it is now sending charge current.
4. Please report back with your findings so we can learn something.