12v Volt Compressor

[Pgslater]

Hello -

I'm a bit confused about the maximum voltage of an air compressor. I've purchased the smittybilt 2781, and it states a maximum voltage of 13.8V. On idle, I've seen the Jeep read between 14.2.-14.7 volts, very rarely do I see it under 14v. Does this mean I can't use the compressor when the jeep is running?

I have the 3.6l with the mild hybrid.

Thanks

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[OldGuyNewJeep]

Hello -

I'm a bit confused about the maximum voltage of an air compressor. I've purchased the smittybilt 2780, and it states a maximum voltage of 13.8V. On idle, I've seen the Jeep read between 14.2.-14.7 volts, very rarely do I see it under 14v. Does this mean I can't use the compressor when the jeep is running?

I have the 3.6l with the mild hybrid.

Thanks

That number you’re seeing on the EVIC is how many volts the alternator is putting out to charge your batteries. A fully charged battery is only 12.6-12.7 volts. You’re fine.

 

[DavidArmen]

I have no idea why they would state that as the “maximum” voltage since that compressor is meant to be used on a car and every single car alternator puts out 14.4volts.

You will be fine.

 

[Pgslater]

That number you’re seeing on the EVIC is how many volts the alternator is putting out to charge your batteries. A fully charged battery is only 12.6-12.7 volts. You’re fine.

If I'm clamping the to the battery terminal when the alternator is charging at 14.6V, is it not going to pass through that voltage to the compressor?

 

[DavidArmen]

If I'm clamping the to the battery terminal when the alternator is charging at 14.6V, is it not going to pass through that voltage to the compressor?

Yes it is.

 

[OldGuyNewJeep]

If I'm clamping the to the battery terminal when the alternator is charging at 14.6V, is it not going to pass through that voltage to the compressor?

Less than a volt over will not harm anything. Also, the EVIC number as reported by the IBS has already be shown to be an approximation, at best.

If you’re really concerned, clamp in your compressor and start it and check voltage at your clamps with a multimeter to see actual voltage under load.

I agree with @DavidArmen - there’s nothing to worry about, here.

 

[Pgslater]

Less than a volt over will not harm anything. Also, the EVIC number as reported by the IBS has already be shown to be an approximation, at best.

If you’re really concerned, clamp in your compressor and start it and check voltage at your clamps with a multimeter to see actual voltage under load.

I agree with @DavidArmen - there’s nothing to worry about, here.

I Will do that, thanks for the suggestion.

 

[WranglerMan]

Less than a volt over will not harm anything. Also, the EVIC number as reported by the IBS has already be shown to be an approximation, at best.

If you’re really concerned, clamp in your compressor and start it and check voltage at your clamps with a multimeter to see actual voltage under load.

I agree with @DavidArmen - there’s nothing to worry about, here.

I am betting load voltage is within there max, these little units suck the power under load but I shot them a email and here is there reply

 

[Pgslater]

I am betting load voltage is within there max, these little units suck the power under load but I shot them a email and here is there reply

Wow thanks! - you went above and beyond. I appreciate the information.

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