Hi Ranga and if it was your alternator, your battery would most likely be flattened in a an hour or so.
Have you disconnected the SC80 from your cranking battery?
I had it suggested to me the alternator could be the culprit due to bad diodes. Thoughts?
Can an Alternator Drain a Battery? | It Still Runs
Hi Ranga and if it was your alternator, your battery would most likely be flattened in a an hour or so.
Have you disconnected the SC80 from your cranking battery?
Paul
D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.
'56 S1,been in the family since...'56
Comes out of hibernation every few months for a run
Just went and checked again, 12.69
It has had bonnet up for few days and no doors opened and no second battery.
I have done a couple of intermediate readings of an increase to 12.7, a drop to 12.68 and the current reading of this posting.
The variations are probably multimeter probes resistance more than anything.
I thought them battery monitoring/isolator thingys had mosfets in them sucking less than the batterys internal losses?
It gets stranger - it was down to 12.41 this morning, and wouldn't turn over. No idea why it wouldn't start at that voltage. I reluctantly de-isolated the auxiliary and it started fine. Bad earth?
have you only got a surface charge on the battery Ryan try putting say a trouble light or something with a bit of a load on battery and see if it holds voltage
if holds -- battery ok then its terminals ,wiring etc
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