Battery charging issue resolved, perhaps
1999 Coachmen Santara 23rb (Class C) I few days ago I posted a question about my battery seeming not to charge when camped with shore power. I've been nosing around this, and I think I found the...
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I spent some time with the rig this afternoon. Even bought a new digital multimeter to replace the Radio Shack cheapie I was using. I found a few wires which might be considered loose in the battery area, tightened them, and took the following readings:
When I arrived, about a day after giving it a full charge at home, I took a reading at the battery terminals with the battery connected to the rig. 12.3VDC in either position of the BD switch.
Disconnected battery from rig. Same reading at battery terminals: 12.3VDC
Turned on the generator, and measured its output at 128VAC
At the battery, with generator running, 12.4VDC, same as with no generator/converter input.
Disconnected the battery from the rig and measured voltage on the leads: 8.4VDC; this presumably is the output of the converter.
So I can't replicate the scary high 15VDC readings, which may mean I'm less likely to boil the battery. But the 8.4VDC out of the converter is concerning, right?
I'm thinking this suggests a new converter. Any other tests I should do before I go that route?
Rich
When I arrived, about a day after giving it a full charge at home, I took a reading at the battery terminals with the battery connected to the rig. 12.3VDC in either position of the BD switch.
Disconnected battery from rig. Same reading at battery terminals: 12.3VDC
Turned on the generator, and measured its output at 128VAC
At the battery, with generator running, 12.4VDC, same as with no generator/converter input.
Disconnected the battery from the rig and measured voltage on the leads: 8.4VDC; this presumably is the output of the converter.
So I can't replicate the scary high 15VDC readings, which may mean I'm less likely to boil the battery. But the 8.4VDC out of the converter is concerning, right?
I'm thinking this suggests a new converter. Any other tests I should do before I go that route?
Rich
