'Float' voltage under varying DC loads
This post is an observation, and observation which bucks the 'this wors like this, and that works like that' mentality which pervades online forums. Empiracle data trumping theory. I can spin a di...
Forum Discussion
The Ammeter on my dashboard, while it can display volts or amps or toggle between the two, is not used for voltage. it displays ONLY amperage.
When I first got it the volts displayed were off by 0.2, high or low I can;t remember but I would not have used it anyway, for displaying voltage.
I have two other Voltmeters, 3 wire voltmeters, with one of the wires being the positive voltage sense lead, and these are connected right to the batteries terminals themselves.
Well one of those 3 wire voltmeters is not hooked to any battery as I have no battery in my engine compartment anymore.
The Transpo540HD voltage regulator is not wired ideally. I have it taking power from the alternator output stud instad of the battery (+) itself, but the negative effects of this are only that once the wire heats up from high amperage and or engine heat the potentiometer needs a little twiddling to keep voltage on target.
I stand by my assertion that to completely prevent any discharge of a battery at float voltage range,when larger loads are on the DC system, that higher voltages are required.
This is likely more of a factor with lower resistance AGM batteries than higher resistance flooded, but I cannot easily perform experiments on Flooded at the moment to test that statement.
When I first got it the volts displayed were off by 0.2, high or low I can;t remember but I would not have used it anyway, for displaying voltage.
I have two other Voltmeters, 3 wire voltmeters, with one of the wires being the positive voltage sense lead, and these are connected right to the batteries terminals themselves.
Well one of those 3 wire voltmeters is not hooked to any battery as I have no battery in my engine compartment anymore.
The Transpo540HD voltage regulator is not wired ideally. I have it taking power from the alternator output stud instad of the battery (+) itself, but the negative effects of this are only that once the wire heats up from high amperage and or engine heat the potentiometer needs a little twiddling to keep voltage on target.
I stand by my assertion that to completely prevent any discharge of a battery at float voltage range,when larger loads are on the DC system, that higher voltages are required.
This is likely more of a factor with lower resistance AGM batteries than higher resistance flooded, but I cannot easily perform experiments on Flooded at the moment to test that statement.
