Jump Starter with Air Compressor, Portable 4000A Peak Car Battery Jumper Starter with 150PSI Digital Tire Inflator (9.0L Gas/7.5L Diesel), 12V Battery Power Pack Booster Jump Box

Not too, Bigger than I expected, but it is built well.

Must have for emergencies

This is a review for Jump Starter with Air Compressor, Portable 3500A Peak Car Battery Jumper Starter with 150PSI Digital Tire Inflator (9.0L Gas/7.5L Diesel), 12V Battery Power Pack Booster Jump BoxThe instructions that come with this thing do not explain how to jump your vehicle. I walked outside the other day, and my motorcycle battery was dead. I tried a few things, and ended up having to remove the seat and get to the battery directly.Allegedly, you are supposed to connect the wires to the battery first, and then plug it into the unit, and I was unable to get it to work this way no matter how many times I tried. It just flashed a red light at me, and did nothing. I noticed in the video on the listing that the light on the side of the jumper cable will turn green, so mine being red meant something was off. I kept trying different things, and what ended up working, was plugging the cables into the unit first, and then attaching it to the battery. It started flashing green and red, so I attempted to start up the bike, and it fired right up and the light turned green.Jumping the bike did not seem to drain the battery much, and the air pump seems to work fine. I did not inflate anything with the pump though, so I can't comment on how well it works.Overall, if you can get the jumper to work, this unit is worth the buy.

It jumped my car right off on the first try. The air compressor works well too.

A good choice. The compination of battery jump starter and tyre inflator is great.

I'm very happy with this tool, however I may be reviewing it prematurely as I haven't tested the jump start function. I had hoped to use it before reviewing, but I decided I'll do like I always do and come back to edit this review if I learn something new.I've only used the air compressor function, just happened to get a flat tire on a WEEK OLD set of tires I just purchased... So I figured I'd use this and plug the tire myself so I didn't have to sit at a shop and wait 30 minutes for them to take care of it.The leak was audible. Got out of my car one morning at work, and it was hissing. I pulled the car around back to give me some time to work on it without having a flat tire out in front of my business on a company car. It went all the way flat in 30-45 minutes. The next day I brought this tool I had gotten on Amazon Vine and set it up to fill the tire while I got my plug kit ready. I hadn't even taken it out of the case and really looked over everything so this gave me the chance. There are a few air attachments, but the one with the hose is all I needed. It screws in nicely to the side of the pack. It has a toggle to lock around your valve stem, which worked perfectly despite some doubts I had. I literally set the pressure, hooked it up, turned it on, and walked away. Due to that, I'm not exactly sure what happened next, but at some point it had shut itself off (I think due to heat) and had maybe gotten the tire around 15-18 psi in that time. This is not a useful measurement for anyone reading this review, since the volume of air in the tire matters for that figure, but I mention it because it obviously has some thermal protection. Anyway, I took the tire off, turned the compressor back on, and plugged the tire. By the time I was done, the tire was filled, and I just unhooked the hose and put the wheel back on the car.I can't overstate how easy it was to use. Instructions were non-existent, I noticed that the pressure for the 'car' setting was measured in (I believe) bar, the pressure for bikes and maybe something else was measured in kPa, and I think balls were measured in PSI.. Which I thought was weird, but I'm capable of converting, although I had the thought "there has to be a way to change that". There's no setting menu but when on the one you want to change, if you hold the 'air' button (again, apologies, I think it was the button that looked like a puff of air - it could have been one of the others, it was so simple to figure out my brain didn't hold the information well!!) it will change the reading to display bar, kPa, and PSI interchangeably.Based on the weight of this pack, the stated current and storage, and my experience with the compressor portion, I fully expect the jump start function to work exactly as intended. I'm very happy overall with this tool. As I said before, I'll come back to edit this review if it doesn't perform as expected.

This is a great item as a gift for someone who travels a lot and by themselves. I have a similar unit without the compressor, and I have used it twice to start a dead car and my Gator, in 10 degree weather this past winter. It's amazing that something this small can start a car with a dead battery almost right away. I didn't even have to wait for the dead battery to charge a little, I just hit the key and it started right up. This unit has the same specs as my other one as far as the jump goes so I know it can do the job. The display is nice and gives all the information you need to use it. There is a flap that lifts for the USB-C charge cable to go into and also a USB-A output for charging other devices, like a phone in an emergency, nice! The other flap is where the jump cables plug into, these flaps keep the ports clean. It has a flashlight with a steady beam or SOS or flashing which is great if you are on the side of the road changing a tire or flashing someone for assistance. Good safety feature. I got this unit as a backup because of the compressor and after I'm satisfied with it it's going in my kids truck. The compressor has four different modes, car, motorcycle, bicycle and sports equipment. Probably just limits the pressures available for those items. I shot a couple pics of the different screens just so you know what to expect. I was curious to see how the compressor worked so I used it on a pickup we have with a slow leaking tire. It was down to 16 psi and it takes 40, figured this would be a good test. The display can be set for PSI, KPA and BAR. Set it to PSI and preset the pressure for 40 PSI. I got up to around 30 and the compressor was still going at around 5 minutes, it's not fast like a big compressor but it does do the job. It will get an error code if the compressor gets too hot as explained in the instructions, but I shut it down for about 20 minutes to let it cool. The air hose was piping hot to the touch. After it cooled down it took about six minutes to go from 30 psi to my set pressure of 40. It runs for about 30 seconds or so longer, probably until the sensor sees a stabilized set pressure then it automatically shuts off. It did the job and probably would have gone the whole way without a rest but I didn't want to push it. It comes with a nice storage case to keep things together in one place and to protect the unit from damage. It also comes with four different nozzles for filling small stuff like basketballs, etc. The only thing I'm not crazy about is the hose connection to the unit. It is a small brass screw in fitting, and I could see if someone drops this or grabs the hose to lift the unit that it may possibly snap off. I would make sure you have that disconnected when not in use. Great little unit for those emergency jump starts or tire changes.