If the air pressure in a car tire is too low, safety can quickly fall by the wayside. The vehicle becomes unstable, fuel consumption increases and, in the worst case, the tire can burst. You can top up the air at the gas station – or anywhere on the road if you have a 12-volt compressor with you. The KÜS has tested twelve such devices.
The compact devices can all be connected to the “cigarette lighter” or a 12-volt socket in the vehicle and are quickly ready for use. The test results vary widely, but with the exception of two candidates, all devices in the test are suitable as mobile helpers when tire pressure is too low .The test winnerThe test winner with the grade “good”, the Heyner AeroCube Pro does a good job, shows no weaknesses in any of the test points, is quiet and inflates the tires quickly. Only the handle on the valve attachment, which seems quite unstable, gives cause for criticism. Pumpmeister: Three bar in just under three minutes Three compressors tied for second place – also with the judgment “good”. In the case of the candidates Heyner BigAir Pro 237500, Brüder Mannesmann Mini-Kompressor and Michelin Micro, the difference to the test winner is just one point. The second Heyner device is the fastest compressor in the test. It takes less than three minutes for three bar, but pumps quite loudly. Mannesmann also pumps up the tire quickly, works quietly and is very compact. The Michelin compressor, which can be programmed in advance, pumps up quickly and quietly and reliably displays the tire pressure. Inexpensive price-performance winnerThe price-performance winner in the test is the Merece air compressor for 32 euros – a purchase recommendation. Although the material and workmanship seem a bit cheap, it pumps quite quickly and is not too loud when filling. The Autder AD-310 came fifth in the test. The compressor not only runs on the 12-volt connection, but can also be operated with a battery. Also with the test verdict “good” in seventh and eighth place for the Black+Decker ASI400 and the Amazon Basics AC010225C. The two candidates inflate quite reliably and the pressure gauges show the tire pressure very precisely. The Reesibi compressor and the Tirewell TW 2003 came in “satisfactory” in ninth and tenth place. inflate the car tires up to three bars. Therefore, a devaluation to “inadequate” for Vonroc as well. In addition, both compressors show serious deviations in the pressure gauges and manufacturing defects. With the Dunlop there is also a risk of burns, as the hose heats up extremely during pumping. Conclusion of the experts: The two cheapest compressors in the test are simply not suitable for inflating a car tire.
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