Diivoo Portable Tire Inflator Air Compressor - 150 PSI Max Pressure, 19LPM Fast Inflation, LED Display & Auto Shut-Off - 12V Car Charger Pump for Cars, Bikes, Balls - Perfect for Road Trips, Camping & Emergency Tire Inflation

**TLDR:** The Diivoo Tire Inflator Portable Air Compressor is surprisingly accurate and convenient, though its user interface is a bit clunky. It has a short air hose and a just-barely-useful flashlight, but it's compact and handy for emergencies. It's a bit slow and somewhat loud, but since it stops on it's own you don't have to stand next to it waiting and listening to it. Battery life seems good for casual use. Overall, it's a solid tool for the price. Call this 5 stars for the price for a quick emergency tool with some quirks, and 4 stars if you are putting this head-to-head with high quality tools.---**Initial Impressions:**I was pleasantly surprised by the Diivoo Tire Inflator. I expected a cheap, inaccurate tire pump, but this one exceeded my expectations. My old pump used to over-inflate, so I tested this one with a super accurate Jaco PSI tool. It inflated my tire to 31.5 PSI almost perfectly, stopping around 32, which was pretty impressive. It was spot-on when inflating a football to 8 PSI too.**Accuracy and Performance:**The accuracy of this compressor is impressive. It very slightly over-inflates, but that's not a big deal since you lose a bit of air when attaching and detaching the air hose. Plus, I'm comparing it to an industry standard tool, so the accuracy of this cheap tools exceeds my expectations. It's not the fastest inflator out there, but the slower speed might actually help prevent overshooting the desired pressure. Plus, you can walk away while it does its thing.**User Interface:**The user interface could use some improvement. It has predefined settings that don't save your preferences, which is annoying. Switching between PSI, bar, and kilopascals takes too long, it requires holding down a button for 4 seconds. It as 5 presets too, which seems overly unnecessary. Also 2 of the predefined settings are the same, so the only difference is what icon it's on. Oh well.**Flashlight and air hose Length:**The integrated flashlight is decent but not very bright. It's fine for emergencies, though. The air hose is pretty short, which can be a bit clunky. It will hang off of any valve if it's not positioned at the bottom of the tire. In an emergency, you probably don't have the luxury of repositioning it, so that's unfortunate. It would be nice if it were longer, but the short length does make it compact and easy to store.**Battery and Noise:**The battery life seems solid. It didn't drop from full during my tests, indicating you could top of 4 tires with 10 psi a piece easily, but it might not last if you're inflating multiple completely flat tires. It's also pretty loud, but not as ear-piercing as my Ryobi tire inflator. It's more of a mild annoyance.**Overall Thoughts:**For the price, this compressor is a good deal. It's battery-powered, making it convenient to keep in your car for emergencies. Despite a few quirks, it's a handy tool that I ended up liking more than I thought I would.