HD digital display
A good digital car tyre inflators will display the inflation pressure on the gauge, some newer tire inflators will display this information on the LCD screen, and more traditional products will display the pressure via a dial indicator and needle gauge. The digital display will give you a more accurate reading, and an added bonus is that the inflation pressure can be seen clearly in low light if the screen is backlit.
Automatic charge and stop
The automatic charge stop function means that you can set the desired tire pressure PSI value, and the car tire inflator will keep inflating until the desired pressure is reached. This is a very useful feature because this way the onboard air pump won't overinflate the tires. You can walk away while the equipment is working, without having to stare at the on-board air pump or worry about a flat tire.
Portability
Good tire hand-held air compressors are usually lightweight. They usually weigh between 2 and 6 pounds, while some smaller ones weigh less than 1 pound. For example, the AP3 car air pump that grips the wind is only about 0.6 pounds. Weight and carrying capacity are two things to consider. , especially if you leave the device in the car.
Built-in LED light
This option is especially useful if you carry a portable car air pump with you on the go. If it's dark outside, a tire inflator with a built-in flashlight can make your job a lot easier. Not only does it illuminate the tires you're inflating, it also alerts passing drivers that you're stranded.
Working period
This is the time when the on-board air pump needs to cool down before it can be used again. On-board air pumps with short duty cycles are more competitive because they don't take as much time to cool down.
Precautions
Even a good quality portable tire inflator should be properly stored and kept in a dry environment. Since it is an electrical device, moisture can damage it. .
Watch the pressure gauge carefully when inflating the tire. Unless the machine has an auto-off feature, you must make sure it turns off after the desired PSI is reached.
Do not leave the tire under-inflated, this can cause the rubber on the tire sidewall to dry out and this damage will eventually lead to tire failure, which is dangerous.
Under-inflated tires also consume more energy and consume more fuel than well-inflated tires. In addition, under-inflated tires can cause other problems, which can lead to accidents.
Check tire pressure about once a month. There are many reasons for a flat tire, including a drop in temperature or a normal flat, which can be a slow process and you may not even realize it.
Typically, portable tire inflators should not be used for more than 10 to 15 minutes at a time. To avoid overheating, allow them to cool for 10 to 30 minutes after each use.