Jason Gargo
In the interest of full disclosure, as a trusted and unbiased Amazon reviewer, I was able to request this product free of charge.
When I get one of these pumps, I always test it the same way. I fully charge the battery. I completely deflate a 195/60 R15 tire. I verify that the pressure reads 0 when I connect the pump. I set the pressure cutoff to 36 psi. I start inflating and time how long it takes. I also access the how warm/hot the device is after inflation is complete and how much battery remains. During the test, I assess whether the pump appears to be straining, pumping less air, slowing down, not making as much noise, etc.
I compared this pump to a similar pump. The other pump was cheaper, but I actually thought it would be better. It looked nicer, came in a hard shell case, included both a screw type and clamp type hose, and an adapter for using from a 12V battery. One thing that was immediately obvious was that the display with the pump being reviewed was much brighter. Now the display was not very bright but readable, whereas the other pump's display was difficult to read.
The pump being reviewed only includes a clip hose; however, it is above average quality and easier to operate than most.
Both pumps took approximately 9 1/2 minutes to inflate the tire. The pump being reviewed was cool to the touch and indicated 75% remaining charge. The junction where the inflator tube attaches to the pump was hot to the touch. The air output was constant during the inflation and there was no drop in sound level indicating that the battery had plenty of juice left.
The other pump was warm afterwards and had about 33% of remaining battery; it's inflation tube was also hot. After 3-4 minutes of inflation, it began to slow down. Prior to that I thought it would significantly outperform the pump being reviewed. It slowed down so much that I didn't think it would reach the 36 psi.
Now if you have a spare and you haven't paid attention to the inflation pressure over the years, it is going to be low maybe somewhere between 10-20 lbs, but unlikely to be completely flat. So my test is an extreme case. That being said, I would still prefer to have the extra reserve. There is always the option of running the other pump from your 12v battery, since it includes an adapter. However that is a bit inconvenient.
| Brand | Mebotem |
|---|---|
| Voltage | 7.4 Volts |
| Recommended Uses For Product | Tire Inflation, Ball Inflation |
| Power Source | Battery Powered |
| Noise Level | 65 dB |
| Special Feature | Portable, LED Light |
| Included Components | 4x Adapters, 1x Tire Inflator, 1x USB Cable, 1x Storage Bag, 1x User Manual |
| Color | Black |
| Style | Portable |
| Model Name | Portable Air Compressor |
| Manufacturer | Mebotem |
| Part Number | F663693 |
| Item Weight | 1.12 pounds |
| Package Dimensions | 8.27 x 3.15 x 2.05 inches |
| Country of Origin | China |
| Item model number | YD03 |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Item Package Quantity | 1 |
| Special Features | Portable, LED Light |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Warranty Description | 12 months warranty for quality issue |
Bob B.