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#Tire air compressor portable#

Output ( CFM) - how much air the compressor pump is capable of outputting in a minute, which indicates how quickly it inflates a car tire.

Duty cycle (run time) - how long you can run a car air compressor before it has to be rested in order to cool off.

If you don't have a built-in LED light, use your phone's light.

LED lights - an LED flashlight illuminates the area so you can see in the dark.

An LCD display makes reading the pressure very easy. You want a gauge that reads within a very small percentage of the actual pressure or spot on.

Gauge accuracy - the built-in pressure gauge doesn't do much good if it doesn't accurately indicate the pressure.

If you cannot tell if the gauge is reading 30 PSI or 35 PSI because there are no markings, it's useless. Make sure the gauge has graduations small enough so you can truly read the exact pressure. But you need to be able to read it or it doesn't do you any good.

#Tire air compressor portable#

Gauge legibility - most (all that you'd want to consider) portable air compressors come with an air pressure gauge.You need a power cord that not only is heavy enough gauge wire to handle the power load, but also has quality electrical connections. Look for a portable tire inflator that has an air hose that stands up over time.

Power cord and air hose quality - a cheap air hose and/or power cord will fail after being used a while.Also, you need to have an air hose that reaches from the air compressor to your tire valve with ease. Power cord and air hose length - You need to have a power cord that's long enough to reach the power source and have the air compressor sitting safely outside.You will be 'pausing' as you check the pressure and move the air chuck from one tire valve to another. Therefore, you aren't going to be continually running the car air compressor as you fill up all the tires that need air. Of course, a quality portable air compressor pump doesn't take 20 minutes to fill up a single tire. Using a 33% duty cycle (20 minutes out of every hour) as an example, you are probably not going to run a portable air pump for 20 minutes non-stop. Therefore, if you run it too long (exceed duty cycle, or operate in high heat), this protection will automatically kick in once it reaches a high enough internal temperature.Ģ) You Likely Won't Use The Air Compressor Non-Stop. This feature automatically resets itself. Some of the Viair compressors that we review have a thermal protector. A quality portable air compressor protects itself. Therefore, the compressor itself can withstand a certain amount of heat.Īn air compressor cannot run all day. Two things to consider:ġ) The reason a duty cycle exists is heat. It tells you how long you can continuously operate it before it needs to 'rest' (cooldown). A small air compressor for tires is going to have a specified duty cycle rating.