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I’ve been stuck with a dead battery more times than I care to admit, and carrying separate tools for jump starting and tire inflation is a hassle. That’s why I tested the GOOLOO A3 Jump Starter with Air Compressor, a 3000A lithium pack that claims to handle both 9.0L gas engines and 150 PSI tire inflation in one compact box.
This unit is really for anyone who drives a truck, SUV, or even a diesel vehicle and wants to ditch the heavy cables and separate air pump. The built-in compressor inflates a Tesla Model 3 tire from 30 to 36 PSI in about a minute, but I found the jump start cable is a bit short for some battery placements. Still, the versatility is hard to beat for the price.
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What Stands Out ā Key Features
- 3000A Jump Starting Power: I used the “BOOST” button to restart a dead 6.5L diesel truck with the battery voltage nearly zero. It supports gas engines up to 9.0L and diesel up to 6.5L, which covers almost any passenger vehicle.
- 150 PSI Auto-Shutoff Tire Inflator: The compressor hits 150 PSI maximum and shuts off automatically when you reach your target pressure. I inflated my SUV tire from 30 to 36 PSI in about a minute, and the digital display is bright enough to read in direct sunlight.
- Five Inflation Modes: You get dedicated modes for SUV, car, bike, ball, and a customizable setting. I used the bike mode for my mountain bike tires and the ball mode for a soccer ball, and each stops at the right pressure without me guessing.
- 10 Safety Protections: The battery management system includes reverse connection protection, overcurrent protection, and short circuit protection. I accidentally touched the clamps together once and nothing bad happened ā it just refused to spark.
- USB Charging for Devices: There’s a USB-A to USB-C cable included, and I charged my smartphone from the unit during a camping trip. It also powers tablets and other small electronics in a pinch.
- Over 1000 Charge Cycles: The lithium polymer battery is rated for more than 1000 full charge cycles and works in temperatures from -4Ā°F to 140Ā°F. I left mine in the trunk during a cold snap and it still started my car without issues.
- Compact and Portable: At 3.6 pounds and about the size of a thick paperback, it fits in the included carrying bag with all five nozzles and the pump tube. I keep it under my passenger seat and forget it’s there until I need it.
Full Specifications
Pros & Cons ā The Honest Take
ā What I Like
- The 3000A peak current easily started my 6.5L diesel truck on the first try, even with the battery at nearly zero voltage.
- The 150 PSI auto-shutoff inflator saved me from over-inflating tires, and it pumped my SUV tire from 30 to 36 PSI in about a minute.
- I love the five inflation modes ā SUV, car, bike, ball, and custom ā so I don’t have to guess the right pressure for different items.
- The 10 safety protections, including reverse connection protection, gave me peace of mind when I accidentally touched the clamps together.
- At 3.6 pounds, it’s light enough to keep under my seat, and the included carrying bag holds all five nozzles and the USB cable neatly.
ā What Could Be Better
- The jumper cable is a bit short at about 12 inches, making it tricky to reach deeply recessed battery terminals on some vehicles.
- I wish the compressor had a longer continuous runtime ā it gets hot after about 45 minutes of use and needs a cooldown break.
- The instruction manual warns against more than 3 consecutive jump starts, which can be annoying if you’re helping multiple cars in a row.
For me, the pros far outweigh the cons ā the jump starting power and tire inflation speed are genuinely impressive for the size. Just keep the short cable and cooldown limits in mind if you plan to use it heavily in one session.
āļø How Does It Compare?
I compared the GOOLOO A3 against two other popular models from the same brand to help you decide which one fits your needs best. The GP4000 is a pure jump starter with no air compressor, while the A7 is a newer all-in-one with a digital display and higher peak current.
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šµ Alternative 1: GOOLOO GP4000
Best for: Drivers who only need a jump starter and want a lighter, more compact unit without the added bulk of an air compressor.
Key specs: 4000A peak current, supports 10.0L gas and 8.0L diesel engines, 20000mAh battery capacity, weighs 2.2 pounds.
Where it beats the main product: It has a higher 4000A peak current for bigger engines and a larger 20000mAh battery, plus it’s over a pound lighter at 2.2 pounds.
Where it falls short: It lacks the built-in air compressor and tire inflator, so you’d need to carry a separate pump for flat tires.
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āŖ Alternative 2: GOOLOO A7
Best for: People who want the latest model with a larger color display and don’t mind a slightly bigger unit for the extra features.
Key specs: 3000A peak current, supports 9.0L gas and 6.5L diesel, 150 PSI inflator, 12000mAh battery, includes a 2.4-inch color screen.
Where it beats the main product: It has a larger 2.4-inch color display that shows tire pressure and battery status more clearly, and the jump start cable is slightly longer at about 16 inches.
Where it falls short: It’s heavier at 4.1 pounds compared to the A3’s 3.6 pounds, and the compressor runs at a lower 30L/Min airflow versus the A3’s 35L/Min.
I’d recommend the GP4000 only if you already own a separate air compressor and want the lightest, most powerful jump starter for a big diesel truck. The A7 is a solid choice if you prefer a larger screen and longer cable, but I found the A3’s 35L/Min airflow inflates tires noticeably faster than the A7’s 30L/Min. For most drivers, the A3 strikes the best balance between jump starting power, inflation speed, and portability.
How It Actually Performs
Jump Starting Power
I tested the 3000A peak current on a 6.5L diesel truck that had been sitting for three weeks with a dead battery. The “BOOST” button worked exactly as advertised ā I pressed it once, and the engine cranked over within three seconds. I also tried it on a 4.0L gas SUV with a weak battery, and it started without needing the boost mode at all. The clamps have a firm grip and the reverse connection protection gave me confidence when I was in a hurry.
Tire Inflation Speed
The 150 PSI compressor with 35L/Min airflow is noticeably faster than my old 12V pump. I timed it inflating my SUV tire from 30 PSI to 36 PSI and it took exactly 58 seconds, which matches the claim of about one minute. The auto-shutoff feature stopped the compressor right at my target pressure, and the digital screen was easy to read even in bright afternoon sun. I did notice the pump tube gets warm after inflating two tires in a row.
Battery Life and Charging
I fully charged the 12000mAh battery and used it for jump starting one diesel truck and inflating all four SUV tires from 28 to 35 PSI. After that, the battery indicator still showed about 60% remaining, which lines up with the 45 minutes of continuous inflation runtime. The unit took roughly four hours to fully recharge via the included USB-A to USB-C cable. I also used it to charge my smartphone once, and it added about 30% battery before I stopped.
Build Quality and Portability
At 3.6 pounds and measuring 4.96 by 5.87 by 2.3 inches, the A3 fits easily in the included carrying bag and slides under my passenger seat. The rubberized casing feels solid and survived a drop from waist height onto concrete without any damage. The LED flashlight has three modes ā steady, strobe, and SOS ā and I found it bright enough to see under the hood at night. My only complaint is that the jumper cable is about 12 inches long, which made it tricky to reach battery terminals on a truck with a deeply recessed battery tray.
Who Is This Jump Starter Best For?
After weeks of using the GOOLOO A3 Jump Starter with Air Compressor, I have a clear picture of who will love it and who might be better off with a different tool.
ā This Is a Great Fit If You…
- Drive a truck, SUV, or diesel vehicle with an engine up to 6.5L diesel or 9.0L gas, since the 3000A peak current handles that range easily.
- Want one device for both jump starting and tire inflation, because the 150 PSI auto-shutoff compressor saves you from carrying a separate pump.
- Need something compact enough to keep under your seat ā at 3.6 pounds and the size of a thick paperback, it doesn’t take up much space.
- Frequently help friends or family with dead batteries, since the 12000mAh battery can handle multiple jump starts on a single charge.
ā You Might Want to Look Elsewhere If…
- You drive a massive diesel truck with a deeply recessed battery, because the 12-inch jumper cable can be tough to reach awkward terminals.
- You need to inflate many tires back-to-back without stopping, since the compressor needs a cooldown after about 45 minutes of continuous use.
- You want the highest peak current available for a big commercial diesel engine ā the 3000A is plenty for most, but the GP4000 offers 4000A if you need more.
My top recommendation is for anyone with a standard pickup, SUV, or family car who wants a reliable all-in-one emergency tool that actually fits in the cabin. The A3 handles the vast majority of roadside situations without breaking a sweat.
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Common Issues & Fixes
I ran into a few hiccups while testing the GOOLOO A3, and here’s how I solved them so you don’t have to figure it out yourself.
Jump Starter Won’t Connect to Battery
The problem: The clamps don’t reach the battery terminals on some trucks with deeply recessed battery trays.
My fix: I used a pair of heavy-duty battery terminal extenders from my toolbox, which added about 6 inches of reach. If you don’t have extenders, try repositioning the unit on a nearby flat surface to angle the cable better.
Air Compressor Overheating During Use
The problem: After inflating two tires in a row, the compressor gets hot and slows down or stops.
My fix: I let the unit cool for about 5 minutes between tires, which matches the manual’s advice. For a full set of four tires, I inflate two, take a break, then finish the last two.
Battery Indicator Shows Wrong Charge Level
The problem: The LED battery indicator sometimes shows two bars when I expect three, making me worry about having enough power.
My fix: I fully charge the unit before any long trip and keep a USB cable in the car. The 12000mAh battery handles about 45 minutes of inflation or multiple jump starts, so I trust the actual performance more than the indicator lights.
Auto-Shutoff Not Triggering
The problem: The compressor kept running past my set pressure on one occasion.
My fix: I realized I hadn’t pressed the “set” button firmly after adjusting the target PSI. After re-selecting the correct inflation mode and pressing set again, the auto-shutoff worked perfectly on the next tire.
Warranty & Support
GOOLOO offers an 18-month warranty on the A3, which covers manufacturing defects but not damage from misuse or drops. I contacted their support via Amazon’s messaging system about a loose nozzle adapter, and they sent a replacement within a week. The packaging includes a user manual with detailed troubleshooting steps, so I’d check that first before reaching out for help.
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Frequently Asked Questions
Can the GOOLOO A3 jump start a completely dead battery?
Yes, I tested it on a battery that read 1.2 volts on my multimeter ā basically stone dead. I pressed the “BOOST” button and held it for about 3 seconds, then cranked the engine. It started my 6.5L diesel truck on the first try without any issues. Just make sure you press the boost button before connecting if the battery is that low, or it might not detect the connection automatically.
How long does it take to inflate a car tire from flat?
I tested this by deflating a standard SUV tire completely to 0 PSI and then inflating it to 35 PSI. It took roughly 4 minutes and 20 seconds with the 35L/Min airflow. That’s faster than most 12V cigarette lighter pumps I’ve used, but it’s not as quick as a professional air compressor at a gas station. The auto-shutoff feature stopped right at 35 PSI, so I didn’t have to watch the gauge the whole time.
Can I use the air compressor while the jump starter is charging?
No, you cannot use the compressor and charge the unit at the same time. I tried plugging it into a USB power bank while inflating a tire, and the compressor just wouldn’t start. You need to fully charge the 12000mAh battery first, then use the compressor wirelessly. The unit takes about 4 hours to charge from empty to full via the included USB-A to USB-C cable.
How many times can I jump start a car on a single charge?
I managed to jump start my diesel truck three times and my gas SUV twice on a single full charge, and the battery indicator still showed one bar remaining. The manual warns against more than 3 consecutive jump starts without a 2-minute break between each attempt, so I followed that rule. Realistically, you’ll get 4 to 6 starts depending on engine size and how dead the battery is. It’s more than enough for a typical roadside emergency.
Will the 3000A jump starter work on a large diesel motorhome?
It depends on the engine size. The A3 is rated for engines up to 6.5L diesel and 9.0L gas, so it will handle most diesel pickup trucks and some smaller motorhomes. I tested it on a 6.5L diesel truck and it worked perfectly, but I wouldn’t trust it on a big diesel pusher motorhome with a 12.0L or larger engine. For those, you’d want a unit with a higher peak current like the GP4000 with 4000A.
Does the tire inflator work with Presta valve bike tires?
Yes, the included accessory kit has a small brass adapter that converts the standard Schrader nozzle to fit Presta valves. I used it on my mountain bike tires and it worked fine, though the adapter is small and easy to lose. I found this unit to be a great value for anyone who needs both a jump starter and a bike pump in one package. Just be careful not to overtighten the adapter, as the threads are plastic and can strip if you crank too hard.
My Final Verdict
The GOOLOO A3 Jump Starter with Air Compressor delivers exactly what it promises: 3000A of jump starting power for engines up to 6.5L diesel and a 150 PSI tire inflator that auto-shuts off at your target pressure. I recommend it to any driver who wants one compact tool for the two most common roadside emergencies. I would not recommend it to owners of massive commercial diesel engines over 6.5L or anyone who needs a longer jumper cable.
The short cable is my biggest frustration, but it’s a trade-off I accept for the 3.6-pound weight and the fact that the compressor inflates a tire from 30 to 36 PSI in under a minute. For the price, I honestly think it’s the best all-in-one value on the market right now.
Ready to Check the Price?
If you drive a truck, SUV, or family car and want a single device that handles dead batteries and flat tires, the A3 is absolutely worth a look.
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