Originally Posted by bikeguy
I have a 1986 25' and am changing the inverter but have a small black wire coming from the invert and don't know what its for. It has a red hot wire and a white ground but the small black is a mystery. I am just planning to use a battery charger in place of the factory type inverter. Any help about the black wire would be appreciated.
Using a battery charger will ruin your battery, very quickly.
The other wire probably goes to the power-on light circuit.
Inverters change battery voltages to city power.
Converters change city power to battery voltages.
Converters usually have brains in them, battery chargers do not.