This Jump-Starter/Inflator Is on Sale for Fall Prime DayGANNON BURGETT - Car and DriverIt's that time of year for Amazon's Prime Big Deal Days, and that means some of the best products we've tested are on sale.During our testing of tire inflators and jump-starters, the Wolfbox MegaVolt 24Air was one of our top picks because it can save your behind in multiple ways. Not only will it rejuice your car battery and your portable electronics, but it can also pump up a flat tire (as long as the tire isn't punctured, of course).Right now, the MegaVolt (which is also a pretty awesome superhero name, by the way) is marked way down for Amazon's fall Prime Day sale. Normally $185, it's just $124 through 11:59 p.m. PT Wednesday, October 7. That's a savings of $61—so if you want one, you'd better hurry.Wolfbox MegaVolt 24Air 4000A Jump-Starter with 160-PSI Air Compressor$140 at amazon.comThis beefy device might not tuck away in your glovebox, but it does come with a carrying case that's still small enough to keep in your trunk or cargo hold in case of emergencies. The MegaVolt is definitely something you'll want to have with you on long trips or during colder months.The MegaVolt 24Air also acts as a 24,000-mAh power bank for juicing up devices, meaning it can really come in handy if you're in the middle of nowhere.Gannon Burgett - Car and DriverAccording to Wolfbox, the 4000A unit can jump cars with gas and diesel engines up to 10.0 liters, so unless you have a prewar Pierce-Arrow Model 66, your vehicle should be compatible. The product charges from zero to 100 percent in around two hours with the 65-watt fast-charger and can function in temperatures as low as –4 degrees Fahrenheit. In our testing, we found its inflation times to be respectable. We do wish the air hose and cables were a little longer.We were additionally impressed with the button tactility and overall sturdiness, which provided reassurance that the MegaVolt 24Air can cope with prolonged use. Wolfbox claims up to 40 jumps. We also liked the incredibly bright, 400-lumen LED flashlight with various modes and noted its benefits during nighttime use. The large digital display is easily legible as well, unless it's under direct sunlight.Whether you've got an old muscle car or just want to consolidate your emergency kit, this is an essential appliance, and you can snag it now for a massive $61.50 discount during Prime Big Deal Days.Gift Guide: Best Ride-On Electric Cars for KidsFuture Cars Worth Waiting For: 2025–2029
