Forum Discussion
MNtundraRet
Jun 18, 2013Navigator
What you are describing sounds like you are saying the meter is reading 12.5 volts a few hours after the sun goes down, while using a few lights and normal use of water-pump, refrigerator on propane, and detectors running.
NOTHING WRONG!
The Trimetric meter is reading the voltage with these items turned on. Reading the voltage "with load" will lower the voltage seen. A battery "full charge" would be 12.6 to 12.7 volts with no load. That means reading the voltage at the battery after everything has been turned off for at least 30 minutes would now allow a actual "state of charge" reading.
A multi-meter used for this reading would likely show 12.6 volts at this time for the actual voltage of the battery-bank. If you were watching a television too, the "loaded voltage could drop to 12.3 volts after turning on the TV for a few minutes.
NOTHING WRONG!
The Trimetric meter is reading the voltage with these items turned on. Reading the voltage "with load" will lower the voltage seen. A battery "full charge" would be 12.6 to 12.7 volts with no load. That means reading the voltage at the battery after everything has been turned off for at least 30 minutes would now allow a actual "state of charge" reading.
A multi-meter used for this reading would likely show 12.6 volts at this time for the actual voltage of the battery-bank. If you were watching a television too, the "loaded voltage could drop to 12.3 volts after turning on the TV for a few minutes.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,344 PostsLatest Activity: Dec 26, 2025