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 > Installing an inverter on truck to power compressor

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Ric Flair

Texas

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Posted: 07/18/13 01:31pm Link  |  Quote  |  Print  |  Notify Moderator

I'm putting airbags on my TV and have decided that instead of getting the on board air option I would instead install an inverter and a stand-alone 2-3 gal air compressor. That would also give me 120v to charge lap tops and other electronic devices for the kids when we travel.

I would just mount the compressor in a box in the back of the bed.

Anyone ever do this?


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SCVJeff

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Posted: 07/18/13 01:49pm Link  |  Quote  |  Print  |  Notify Moderator

If you can get an engine driven compressor I think you will be way better off.. The inrush on a compressor is akin to an AC unit, and it could likely take a 3000w inverter to bull it off. Then there is the battery and alternator....


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PapPappy

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Posted: 07/18/13 01:49pm Link  |  Quote  |  Print  |  Notify Moderator

The inverter is a good idea....and the compressor is a good idea, but not sure if one is good with the other
Went looking at compressors...figured you'd probably want the 150 psi unit. Found this one by Dewalt


It's got an 8Amp motor.
That may be a pretty stiff draw on the batteries?

With the airbags, you really don't need to fill them on the fly, so you could run the genset, or stop by a gas station. Heck, because they are so small, you could actually pump them up by hand
Still, it's nice to have a compressor with you....for tires, kid's toys, etc.


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MrWizard

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Posted: 07/18/13 02:10pm Link  |  Quote  |  Print  |  Notify Moderator

i filled airbags on our previous MH using a 12v compressor

around 40~50# iirc

very little 'air' in air bags


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smkettner

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Posted: 07/18/13 02:19pm Link  |  Quote  |  Print  |  Notify Moderator

Kind of a King Kong system for little air bags and a lap top.

MV-50 (amazon) and a 100w inverter for the toys would be my choice.


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Peg Leg

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Posted: 07/18/13 02:20pm Link  |  Quote  |  Print  |  Notify Moderator

I used a 12v compressor from an old Buick load leveler system.


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pronstar

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Posted: 07/18/13 02:30pm Link  |  Quote  |  Print  |  Notify Moderator

Why does the compressor need to run on AC?

Just get a DC compressor like everyone else, then get a little inverter to power your electronic gadgets.

You'll be money ahead versus getting an inverter with enough juice to power an AC compressor .01% of the time, and will power electronic gadgets 99.99% of the time.


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Posted: 07/18/13 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

Why don't you just pickup a 12VDC air compressor... AMAZON

BFL13

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Posted: 07/18/13 02:54pm Link  |  Quote  |  Print  |  Notify Moderator

Don't know about air bags. Just to add something to what has been raised, I do run a 3 gal 120v air compressor from my 2000w Vector MSW inverter no problem.

I was unable to inflate my trailer tires to 50lbs with the cheesy 12v compressor I had, never mind 80lbs on the truck. In fact the 120v compressor has a hard time getting them to 80lbs. I quit at 75

The other main thing is how to run any sort of big inverter "from the truck." I have mine on four batteries in the trailer. My truck battery with an inverter on it with the engine running can keep a 1000w inverter going with about 600w of load (a 35 amp Vector charger) Any more than that, the truck voltage dies right off, so that's my limit. (others might do better with a bigger alternator etc etc)

You might have to have a biggish battery bank in the box of the truck to run a biggish inverter to run the air compressor. Then recharge those batteries with an extension from the 7-pin, or whatever means you have at hand.


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Ric Flair

Texas

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Posted: 07/18/13 03:06pm Link  |  Quote  |  Print  |  Notify Moderator

All good points and replies. I knew I'd get some good info from y'all

I have a pretty good 12v portable compressor but it's a pain.

I guess I can always just put a 120v compressor in the back of the toy hauler and crank the generator too. Trying to kill too many birds with one rock I suppose

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