Battery Problem.....again

[subboxmaker]

I just installed a engine driven compressor kit on my truck, for 2 main reasons, 1) it will be a lot faster and 2) my battery kept dying. Well i go to get in my truck this morning, and what do you know its DEAD. I think i may know why but just a guess. The only think electric on the whole install is the clutch. Now it said to wire it to a keyed source, but i wired it to the pressure switch and then the switch to the battery. So im guessing that the clutch is always ingaged causing a drain on my battery. I have the yellow top optima battery by the way. So i guess my question is....how should i wire it up to make this damn thing work? thanks in advance guys.

[Maximus]

Something is drawing voltage with key off.I would wire it as suggested and see what happens.If no change then something else is drawing the voltage.

[subboxmaker]

where should i tap into at? like what kind of keyed source?

[jomama]

there is one for sure around the coil. do you have a multimeter?

[subboxmaker]

called air lift today, they said just go into the fuse box and find anything thats an accessory, guess ill give that a go tomorrow after my batts charged. takin ridiculously long. Did the slow charge at 2amps. o well......

[Sparky2263]

That A/C clutch is gonna draw 5-10 amps. I wouldn't just plug it into "any" accesory fuse. Use a relay to operate the compressor. That way you're only using 1/4 amp (or so) to run that clutch. Let the relay switch straight battery voltage to the clutch.