rjsurfer wrote:
Tenbear,
You said "Picking up a nearby 12v source may give you a reading higher than the battery voltage when charging the battery in boost mode. Or, maybe lower if you pick a line feeding a high current load, or if lights are on or off. "
Why would the voltage be higher? Just curious.
Thanks
Ron W.
I have that "issue" too. It is voltage drop on the wires between meter and battery.
I have a voltmeter away from the battery and have compared readings with at the battery so I know the meter reads 0.1v high. No problem once you know that to just take 0.1 off whatever the meter says.