Thread: Compressor amperage draw

Not likely with the engine running

you should be able to run your compressor long enough off a good battery to reinflate your tyres....
and still have enough juice in the battery to start the engine again.....


the key word being SHOULD......its always wise to leave the engine running.....it can take up to 30 mins to reinflate 4 tyres......

if the engine is running....the alternator will pretty much run the electronics....compressor included.....
hence not drawing too much power(if any at all) from the battery.....






if you are going to be adding accessories....it will be wise to fit a second battery.....
complete with an isolator......if you wish to go down this path then drivesafe is the one you will need to speak to.....
will also save you a lot of dollars.....

Originally Posted by DEFENDERZOOK

you should be able to run your compressor long enough off a good battery to reinflate your tyres....
and still have enough juice in the battery to start the engine again.....


the key word being SHOULD......its always wise to leave the engine running.....it can take up to 30 mins to reinflate 4 tyres......

if the engine is running....the alternator will pretty much run the electronics....compressor included.....
hence not drawing too much power(if any at all) from the battery.....






if you are going to be adding accessories....it will be wise to fit a second battery.....
complete with an isolator......if you wish to go down this path then drivesafe is the one you will need to speak to.....
will also save you a lot of dollars.....

Tony 30 minutes??? what you using a bicycle pump?

yeah...a 12v one.....



some compressors are slow........and some tyres are big......put the two together and you have the worst case scenario.....

normally 10ish mins is what it takes with a good compressor.....

i dunno what compressor he is gonna use or what size tyres he is running.....
so i covered my backside by saying "up to 30 mins" .........

i also have a honda powered 4 stroke compressor.....very quick......

Compressors can draw a lot - up to 20 amps. Thats the equivalent of about four headlights on full beam, so will give you some idea.

My compressor can draw up to 46 amps, so I only use it with the engine running.

Maggsie.

Originally Posted by maggsie

My compressor can draw up to 46 amps, so I only use it with the engine running.

Maggsie.

just checked the current draw from my bushranger max air 36amps/h, didn't think it would run that high

no real problem running the compressor without the engine running for short amount of time ie if your are airing up after coming of the beach and your compressor ran for say 10min continous, on mine that would be 6amps of current draw, pretty much any battery would handle that and still start the car.

however now that i know the current draw i will keep that in mind when camping with two engles running and the kids want to air up the truck tubes and water rockets

i have three batteries to draw from, umm one good thing about a manual battery isolater i guess

i'm always pumping the kids and there mates bike tyres up along with socer balls, footy's and water rockets etc with out the car running

Originally Posted by waynep

Compressors can draw a lot - up to 20 amps. Thats the equivalent of about four headlights on full beam, so will give you some idea.

My one is WAY over 20A.....

M