24volt accessory on a 12volt system
 

Alright, I have a 24volt air compressor that I want to mount in my 04 F350 Crew Cab. It has a 6.0l turbo diesel so it has two batteries, of course they are wired to produce only 12volts.

Is there a way to use the existing systems batteries without a total conversion to 24v?

I am good mechanically, and fair electronically speaking. May need a little walking through though.

Thanks,
B6

You would need to disconnect the parallel battery arrangement and re-configure the batteries in series so you have 24 volts just to run the compressor.

Probably not very practical, but perhaps, someone else has some ideas...

Look here: 12V DC to 24V DC Step Up Transformer

He'll need to check the current requirements of his compressor, particularly the start-up/surge current, to see how much "juice" is needed.

That thing is up to 10 amps! Should be plenty!

Like I said, it all depends on the inrush current when the compressor first starts.

Thanks, I will dig it out and see if the specs are in the box.

B6

I doubt it will work. If 10 amps is enough, it's not much of a compressor. Depending on what you have, you may be better off getting another type motor for the compressor. Those little plastic compressors that you can get to blow your tires up in a emergency pull 10 amps or better at 12v.

Hey Black you ever get this worked out? If not I got some ideas for ya.

Just get an Inverter 12 volts to 120 volts with around 1500 watts rating. That works out to 1500\120 volts = 12 amps load side.

Yep, and that works out to 125amps + on the 12v side. That's a big load on the 12v system.

That isn't what the OP is after though, he wants 24V DC.

See post # 3 ......

Sure but 10A is next to NOTHING, and at $95 might as well buy a 24V alternator. The only thing that is good for is to charge a 24V battery that is only used on occasion.

Yes it is and it would be the max he could run off a 130 amp alternator. given the car needs around 25 amps to run the car.

One reason the 1500 watts is max for any normal use.

Converting to 24 volts system is insane. You would have to change everything.