Review on JOYTUTUS Cordless Tire Inflator - 6000mAh Rechargeable High Capacity Battery - Compact & Lightweight Air Compressor with Accurate LCD Display for Car, Bicycle, Balls, and More by Conrad Greene

Don't let the small size fool you. He cleared four 20-inch 4-pound hoops in under 2 minutes each and four 16-inch 5-pound hoops in 90 seconds. The battery indicator shows more than 50 percent charge remaining. Very easy. I wish the air line was a few inches longer, it doesn't reach the valve stem when it's on top of the tire. It doesn't really matter, because the device is so light that you can easily hold on to the few minutes it takes to fill it up.