ASPERX 2 IN 1 Car Jumper Box with Air Compressor(Up to 10L Gas/8.0L Diesel Engines)，3000A Battery Jump Starter with USB Fast Charging,Portable Battery Booster for 12V Car SUV Vehicles

I purchased this combo battery/air compressor to replace 2 individual components that I've had %26 used for over 6 years. The battery delivered with a partial charge so it only took about 30 minutes to top it off to 100%. Having instant air for adjusting tire pressure without having to even start the car, (least of all chase around trying to find a pay per use air hose, especially here in Utah when the temps drop so quickly this time of year), is super helpful. As well as time %26 $$ saved NOT having to drive to a pay per use air compressor. This lil dandy only took 13 minutes to top off the pressure in all 4 tires on my Outback. Even with waiting 5 minutes in between the 1st-2 %26 the 2nd-2, (just a precaution on my part to not risk overheating the new battery.), %26 it would of taken me that long just to drive to a pay per use air compressor. And not of had near as much accuracy getting the correct tire pressure after getting the tires warmed up. I've not yet needed the jump starter, but where the air compressor worked every bit as well as described, the light is nice %26 bright, I'm eliminating my phone power bank, the extra flashlight I carry in my car, and I fully expect the not yet tested other functions to will work equally as well. All 4 of my tires needed from 2-5 psi added. Using the compressor to top off all 4 tires it only drained 2% off the battery. Quite impressive IMO, given the compact size %26 multiple functions this unit has. The 2 individual components I've used the past 6 years not only paid for themselves many times over, but saved a bunch of time waiting for a service to jump start my car the one %26 only time I've used it for my own car. I actually used the old unit to jump start several other people's cars that had drained batteries %26 that trusty lil device never let me down. I fully expect as good or better service from this new combo unit.