Hi,
If i disconnect the NEGATIVE from the battery bank, leaving the POSITIVE connected, I have a voltage and current between the Battery NEGATIVE and the vessel ground, reading -25.2V and a resistance of 0,5 Ohms. All breakers are off and source of charge disconnected.
In the same condition as above, if i connect a test light between battery NEGATIVE and vessel GROUND, the light goes on and the BMV is firing up.
When i disconnect the battery temperature sensor, its got to 0v . all to normal.
Is it normal or the temperature sensor or BMS shorted?
having Positive on the vessel ground, its seems very odd to me.
It is working as normal when all connected ( including the temp sensor). but seems that this should not occur..?
Batteries are lithium, bank voltage 26,7V
thanks for you help.
Morgan