Forum Discussion
Almot
Apr 20, 2015Explorer III
smkettner wrote:
Exactly what equipment is giving such accurate percentages of battery charge level?
Need make and model number.
He said "display/meter for my solar setup". Sounds like a built-in AH counter present in some mid-range controllers. Not much different from expensive toys like Trimetric or Victron battery monitors that people here are using ;)... I don't have AH counter on my controller, and would not rely on it.
The only real measurement is by hydrometer.
Open circuit voltage of battery rested at least 24 hours is the second best. It has to be Open Circuit, i.e. no loads, and even then it won't tell the whole truth if battery can't hold the voltage under load.
Too little info to guess, it could be either failing battery or failing AH counter.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,203 PostsLatest Activity: Feb 22, 2025