My dart wont die

We have the diagram so no worries there, I'm sure someone like Del will post it for you.
Keep in mind that a misconnected wire from the alternator into the ignition circuit somewhere can cause this also.
Even a bad diode in the alternator can cause it if the wires are crossed up somewhere as the backflow of power can cause the ignition to be powered all the time that the battery is connected.

This particular scenario is pretty easy to diagnose though.
If you leave the battery connected and it goes dead after a day or so, then something in the wiring is crossed up causing power to be at the ignition system all the time, instead of just when the key is on.

You can start at the coil and backtrack the power source with a test light.