I bought a new compressor, for around $50. When I tried to use it after 6 months, nothing happened, but I could smell the melting isolation on the power cord! $10 wasted :) My personal experience with these kind of small portable air compressors is that you get what you pay for, but you don't need to buy the very expensive ones. But if you want to use air tools or anything else that requires more air, be careful not to overheat the compressor by running it too long at a time. For inflating tires, this is not an issue, as you might just use it for 2 minutes at a time. Most small compressors have a maximum duty cycle, that is the time it can run, compared to the time it needs to 'rest'. The bigger 12 volt compressors will come without a plug, but with two clamps that you can hook up directly to the cars battery.Īnother point to keep in mind is the duty cycle. Electrical connection: low-power compressors will come with a connector that you can plug straight into the cigarette lighter.It fitted exactly in the inside of my spare tire (that was designed that way on purpose of course). I bough a $50 air compressor 2 years ago that was round. It will just take a little longer to inflate your tire. This isn't really an issue most of the time. 12 volt air compressors are generally small, so the amount of air they can supply per second or minutes is small too. Don't expect to much when it comes to air flow. The tires on my 1996 Toyoto Corolla require 2.6 bar for example. Most small compressors can go up to 7 bars (100 psi), which is more than enough for car or SUV tires, but might not be enough for big truck tires. you better go to the nearest gas-station (if you like your neighbors ) Even those small ones! If you want to inflate your tires in a residential area, on Sunday morning. Noise: cheap compressors without isolation will make a lot of noise.Figure out for yourself what is important for you. They range from $10 to more than $1500 ! Of course, what you pay is what you get. There are many different types of these small compressors. Choosing a 12 volt portable air compressor Why? These kind of things require low pressure, but high air flow, while your compressor gives high pressure with low air flow. When the pressure drops too much, the air tools stops working.Īlso stuff like inflating a mattress or an inflatable swimming pool is almost impossible to do with a small 12 volt air compressor. If the air consumption is higher than the air production, the pressure will drop. If you have a big air tool, like a grinder or air-motor, you will need a lot of air, not just pressure. The maximum air flow is the amount of air (in liters per minute) that the compressor can produce. But, the air maximum flow is just as important. The maximum pressure of the compressor might be sufficient for the air tool (which normally require about 6 bar to function). That's an important distinction to make, especially when it comes to using big air tools on a small 12 volt air compressor. While almost all portable air compressors are capable of compressing air to 7 bar (100 psi) or more, the flow isn't very high. Not for everythingīut a portable compressor can't be used for everything. Just hook it up to your cars battery and you have compressed air whenever you like. If you have pneumatic tools like a nailer that require compressed air to function, and you want to use it in a remote location, a 12 volt air compressor is the way to go. It can basically used for anything that needs compressed air. Portable air compressor usesīut inflating car tires is not the only use of a 12 volt air compressor. Plus it can come in handy when you go camping for example. But having a portable 12 volt air compressor with you gives some extra peace of mind. I must say that inflating my tires at the gas station is easier and faster. I still use it every now and then to inflate my tires. I bought one about two years ago exactly for that job. So you're looking for information on a 12 volt air compressor? Probably you want to use it in your car to inflate your tires. Inflate tires and toys everywhere, with the right 12 volt air compressor, by following our advice on this page.
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