A3 12V 3000A Portable Jump Starter with Air Compressor

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.

I've been wanting to get one of these for a while now that way if my battery ever dies I can give it a jump without having to flag someone down to help me out. I saw a video on YouTube by "project farm" where he tested a different jump pack from the same brand and it did extremely well in his tests so when I saw that this one was on sale I bought it immediately. I have no regrets with my purchase. First of all I love that this comes with a case and everything fits in a nice little package that doesn't take up too much space. Having a built in flashlight and air pump are also nice. I forgot to turn off the auxiliary power in my car when I came back in from my lunch break at work the other day so my battery was dead by the time my shift was over. This thing jump started my car like it was nothing. Just hook up the cables, hit the boost button and start the car. My car didn't even hesitate. It started up like the battery was never even drained in the first place. I also used it to inflate 2 of my co-workers tires. It has come in handy so far. If you want a good jump pack for under $100 this is a very good option.

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.

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.

I've been using the GOOLOO A3 12V 3000A Portable Jump Starter with Air Compressor for several months, and it has proven its value more than once. In fact, I was so impressed with its features and reliability that I purchased one for each of our family vehicles. Having one readily available in every car provides a level of peace of mind that's hard to put a price on. The jump-starting capability is what initially attracted me to this unit, and it has delivered every time we've needed it. My family has used these jump starters multiple times to bring vehicles with dead batteries back to life without another car or waiting for roadside assistance. The process is straightforward, and the unit provides enough power to start a vehicle with confidence when you're stranded. The built-in air compressor has also been incredibly useful. We've used it to inflate low or flat tires when getting to a gas station wasn't convenient. Having both functions combined into a single device makes it much more practical than carrying separate emergency tools. In real-world use, the unit feels well-built, easy to operate, and compact enough to store in a vehicle without taking up excessive space. The display is easy to read, and the overall design is intuitive, even for family members who aren't particularly mechanically inclined. Pros: Powerful and reliable jump-starting capability Built-in air compressor is extremely convenient Eliminates the need to wait for roadside assistance in many situations Compact enough to keep in the vehicle Easy to use and understand Excellent emergency preparedness tool Cons: Larger and heavier than a basic jump starter due to the integrated air compressor Requires occasional charging and maintenance to ensure it's ready when needed Overall, this has been one of the most useful automotive purchases I've made. Between jump-starting dead batteries and inflating tires, these units have saved my family from multiple stressful situations. I rarely write reviews, but this product has genuinely earned its place in every vehicle we own. If you're looking for a dependable emergency tool that does more than just jump-start a car, the GOOLOO A3 is an excellent investment.

Haven't had to use it to jump a car yet. The pump works great, not too loud and it has a great, digital pressure meter that will automatically shut it off when you reach set psi. It also shuts down automatically when it gets too hot. I've run the pump for a total of probably 15-20min and the battery has only dropped 25%. Only thing I hate about it so far is that it doesn't come with a normal electrical cord for charging. You of course have to use a USB-C cable because that's what was installed in all houses right? So stupid.

It does job long battery life on one charge it jump starts the car easy to pump air in the tires. I highly recommend for the price

Pros: works great, holds a charge for a couple months and can still us it. cant start a pickup about 3 times before you have to charge it again. .... can start a small engine (lawnmower) prob about 12 times before needs charged. Cons: the plug is kind of tight going in and can sometimes be a pain. You also have to hit the "boost" button to start something... that should just be an automatic thing.