Overcharging 68Dart...need some short fused help (pun intended:)
Original power scheme
Ammeter only shows current to and from battery.
Attach the fan or fan relay to the power supply and only run the fan when the engine is running.
In this example above imagine if the current to the headlights lights, ignition and fans was all going down the R6 wire.
How many amps would be going through that line?
Then if the battery needs charging, how much more current would that be?
If you want to run the fan with the engine off, then wire battery more directly to the fan. Something like this will allow the battery to power the fans with the least amount of resistance.
And batttery charging would look like this
Original power scheme
Ammeter only shows current to and from battery.
Attach the fan or fan relay to the power supply and only run the fan when the engine is running.
In this example above imagine if the current to the headlights lights, ignition and fans was all going down the R6 wire.
How many amps would be going through that line?
Then if the battery needs charging, how much more current would that be?
If you want to run the fan with the engine off, then wire battery more directly to the fan. Something like this will allow the battery to power the fans with the least amount of resistance.
And batttery charging would look like this
