I use high capacity battery 50AH for my rover with Mauch electrical power module PL4-14S/4x
How to calculate voltage divider and amp pre volt.
I follow this video, but how to make it accurate.
I use high capacity battery 50AH for my rover with Mauch electrical power module PL4-14S/4x
How to calculate voltage divider and amp pre volt.
I follow this video, but how to make it accurate.
Finally figured out the battery monitor setup. But it looks not accuracy.
I keep machine running for 24 hours, I have a power meter connect to battery.
After 24 hours, it shows down to 22.7V from 28.1V. I use power meter measure the battery, it is 27.3V that is same as the attached digital power meter
it shows wrong value on MP.
I keep machine turn on for one more day, then open MP, it shows 20.22V, actually power meter measures 26.9V. The voltage divider is same as before.
It looks Ardupilot reduces voltage value faster then real voltage value.
What is reason for this?
In MissionPlanner go to the Setup/Optional Hardware/Battery Monitor section with your vehicle connected.
Sensor should be 0: Other
Job done for voltage !
Now for current… You should have the Amps per Volt value that Mauch supplied. The way to check it is some repeated constant current draws and battery charge cycles.
I am assuming you cant drive easily while doing these tests
Repeat until there’s no significant change between old and new Amps per Volt.
Unset LOG_DISARMED