A3 12V 3000A Portable Jump Starter with Air Compressor | Supersafe Car Battery Booster Pack (9L Gas/6.5L Diesel) - BOOST for Dead Battery - 150 PSI Auto-Off Tire Inflator - LED Light

This GOOLOO A3 jump starter has been a great addition to my emergency kit. The 3000A power provides plenty of confidence for jump-starting a vehicle when needed, and having the built-in air compressor is a huge bonus. The compressor is convenient for topping off tires, and the digital display makes it easy to monitor the pressure. The unit feels solid, is easy to use, and saves having to carry multiple tools for basic roadside situations. I like that it’s rechargeable, portable, and gives me peace of mind knowing I have it with me. Hopefully I won’t need it often, but when I do, it’s nice to have a reliable backup. Definitely recommend for any driver.

We spend a lot of time in Baja California, and rough, unpaved roads result in lots of tire punctures. Having a decent air compressor is therefore "necessary equipment". This unit inflates tires reasonably quickly, automatically displays the pressure in the tire before you set the desired inflation pressure, and shuts off automatically when the desired pressure is reached. The display is easy to read. The short, detachable hose is easily attached and removed, and stores in the bag with the pump. The hose length works for most common automobile tires, and will work for oversize tires by rotating the wheel to bring the valve stem closer to the ground. Attachment to the valve stem is easily accomplished with its lever-lock working end. The unit can additionally function as a battery booster for starting a vehicle with a low battery. Installation of the cable for that purpose is easily done, and it worked just fine when we had to use it on one of our two vehicles one morning, allowing the car to be started quickly and easily. Charging is accomplished with a standard USB charging cable (USB-A style at one end, and USB-C style connector at the other end). We had a puncture that required the pump to be used multiple times to get the 12 miles back to a tire repair shop. We could charge the pump up easily and quite quickly via the vehicle's USB port, stopping every few miles to pump the tire back up enough to keep going on the highway without having to go through the trouble of unloading the trunk to change the tire for the "doughnut" spare at the side of the road. Having those two experiences just shortly after we received the pump was more than enough proof that we should have another for our other car. I'd recommend it for its small, easily stowable size, good battery capacity and ease of use.

Bought this to replace one of the larger defective jump packs at my shop and boy it does not disappoint. Pros: I’m not sure how many volts/amps this thing puts out but it’s a lot. Our other larger jump pack struggles starting cars with completely dead batteries. It will start them but they turn over far more slowly than with a good battery that’s just low. Hook this thing up to a car with a dead flat battery and so far without fail it will turn the car over faster and harder than the car would do with a brand new fully charged battery on board. Only with diesel trucks does it sound like it’s putting out equal the power the stock batteries do. The pack has enough juice to air up 4 flat 215-45-r17 tires (car was in the back lot for a few years) and still have enough to do a jump or two. Tire inflator is a lot faster than all of the units of this type that I have tried including ones that plug into the 12v. However it’s FAR slower than the Milwaukee M18 unit we have at the shop. Though in fairness that unit is 3-4 times the size and price of this one. Cons: Takes far longer to charge this unit than the USB C charge port leads you to believe. I have tried chargers from 5-65w and if completely drained it takes 3-4 hours to charge it regardless of the power output capability of the charger you are using. Also if you are trying to jump a car that will not start for other reasons than a dead battery you only have about 3-4 solid 15-20 second cranks in it before it’s drained. Also the pack shuts itself off after a cranking attempt has been made. In the case that the car doesn’t start on the first attempt you have to get out of the car and press the button to turn the unit back on again which is mildly annoying. Finally the user interface is not very intuitive but its not impossible to get the hang of. Overall this has been a very solid unit regardless of price. For the money it’s an outstanding buy. It can easily start 10+ cars in a row if the only reason they won’t start is a dead battery. I even bought a second one to keep in the wife’s car for emergencies.

★★★★★ Outstanding Product Backed by Outstanding Customer Service I purchased two GOOLOO A3 Jump Starters with Air Compressors for my family vehicles, including a Toyota Sienna and Hyundai Palisade. The unit itself is packed with useful features. It combines a powerful jump starter, air compressor, emergency light, and portable power bank in a compact package that is easy to store in the vehicle. The air compressor is simple to use, and having one device that handles multiple roadside emergencies is extremely convenient. One of my two units unfortunately developed a defect and began overheating. While that was disappointing, what happened next is why I am writing this five-star review. I contacted GOOLOO customer support and was assisted by Fiona. She responded quickly, took the issue seriously, and worked with me throughout the entire process. Amazon ultimately determined that the defective lithium battery unit should not be returned because of safety concerns and advised proper disposal. Without any arguments, delays, or unnecessary back-and-forth, GOOLOO immediately arranged a replacement and shipped it directly to me. The replacement arrived quickly and has been working perfectly. In my experience, the true test of a company is not when everything goes right. It is how they respond when something goes wrong. GOOLOO stood behind their product, communicated professionally, and resolved the issue promptly. I have dealt with many companies over the years, and the level of after-sales support I received from Fiona and the GOOLOO team genuinely impressed me. The product is excellent, and the customer service was even better. Highly recommended.

Not sure if I received a bad jump starter or not. But, I've drained three different batteries in cars just to test it. Will not jump start a small car or small SUV. I charged batteries after this flop of a test and the batteries are still good and start the vehicle just fine. I've used these type of jump starters in a work environment with great success. But, not this brand, this time. Of course, I'm past the return date since I was trying to figure out if the product was defective or not. Edit-After a discussion with the supplier it has been deemed that this was most likely a defective product that was shipped out. Unfortunately, this does happen even to the most careful QC plants. Supplier made this right for me and I can't be any happier with how they handled the situation. Thank you for reaching out to me and helping with this. Very much appreciated and this unfortunate incident will not keep me from purchasing your products again.

Good piece of equipment! Worked the first time out, though it does need to be charged. Compact, you can keep it in your trunk. It's got lots of miscellaneous features. The spot light is not overly bright, but you'd be happy to have it late at night. I haven't had it that long yet, but be aware, the battery slowly fades and the unit should be recharged every few months. I had a different brand before, but it was lost in a fire. That is the only issue I have with these.

I bought this in 2025 and it has been great for checking tire pressure. It's very fast and light, unlike my old, heavy compressor/charger. It seems like I'm always having to replace valve stems so this is a must have for me. I finally needed it for a dead battery. I tried my old Duralast first because it was fully charged, but I couldn't get my car to crank even after leaving it for half an hour. The next morning I tried THIS charger and tried it almost immediately and it cranked right up. I then drove to get a new battery. This one was MUCH cheaper and better quality than the ones I saw at local stores.

My Mazda CX-30 wouldn't start one day. I knew these rechargeable jump starters were a thing so I jumped on Amazon and got this one same day. Worked like a charm! Inside the main unit is basically a giant power bank. It charges with a USB-C in, which is awesome and universally available. It even has a USB-A out port to charge another device. I charged it up to full when I first got it, even though it already had some juice in it and I *think* you'd be able to get an emergency jump right out of the box if you needed to. The directions are simple. Plug the battery clamps into the box, then clamp them onto your battery. A green light tells you that it's ready to go. Press the BOOST button, then go into your car and start it up with in 30 seconds. Then remove the clamps and away you go. No sparks, no scary sounds, no worries. I jumped it twice and it still had enough charge for possibly a few more. Other great emergency features: the tire inflator has programmable pressure. The light is nice and bright and stays steady for a flashlight or blinks for emergency. And I already mentioned the USB out for charging another device. This is a great, indispensable emergency device for anyone's car. I'm glad I got it and I'll make sure it stays charged in my glove box.