
Having bought this product and found obvious flaws, I do not believe any of the positive reviews. It takes several hours (more than 24 hours) to fully charge the compressor battery. After more than 30 hours, the charge status display was 3 out of 5 bars. The controls (on-off) are clumsy and unintuitive - all of which could be forgiven if the device works. The inflation hose is very short and the cam lock on the end of the valve is very hard and doesn't engage (swallow) the valve well. The Presta valve adapter is smart (turns the Presta into a Schaeder) but doesn't seal and the valve cam doesn't snap (see above). I was able to inflate one (1) road bike tire to 100psi - a 16 gram skinny tire after 20 minutes of fiddling with the device. I couldn't get him to inflate another tire further. 40psi even with the compressor running continuously for 15 minutes (I suspect air leaks due to a bad valve seal). In addition, the compressor became so hot that it could no longer be handled. Well above any safe temperature for a child. Given my experience with the product and my understanding of mechanics (I own and run an engineering firm) there is no way POS will inflate a typical American car or truck tire. No way, no chance, no bones. whoever claims that is a manufacturer who is lying to the buyer on this site. Big disappointment. I had such high hopes that I would put my floor pump in the closet.