I’ve been testing two of GOOLOO’s most popular jump starters with built-in air compressors β the A2 and the A3. Both are designed to get you out of a jam, but they pack different peak currents (2500A vs 3000A) and different numbers of features (8-in-1 vs 7-in-1).
If you drive a compact car and want something truly pocket-sized, you’re probably wondering which one makes more sense. I’ll break down the real differences so you can pick the right tool for your trunk.
π Quick Picks β My Top Recommendations
Best Overall: GOOLOO A2
More features (8-in-1) and lighter at 2.8 lbs, perfect for compact car owners who want versatility β Check Price β
Runner-Up: GOOLOO A3
More powerful at 3000A with a larger 12000mAh battery, better for slightly bigger engines β Check Price β
I’ve lined up the specs that matter most for a compact car owner so you can see exactly what sets these two apart.
Full Specs Comparison
| Specification | GOOLOO A2 8-in-1 Jump Sta | GOOLOO A3 Jump Starter wi |
|---|---|---|
| Battery Cell | Lithium Polymer | Composite |
| Voltage | β 12V | 12V |
| Dimensions | β 4.84×1.97×6.54 in | β |
| Max PSI | β 150 | 150 |
| Gas Engine | Up to 8L | β 9.0L |
| Diesel Engine | Up to 6L | β 6.5L |
| Peak Current | β | β 3000A |
| Vehicle Type | β Car/Truck/ATV/UTV | β |
| Auto-Shutoff | β Yes | β Yes |
| Color | Black | Red/Yellow |
| Brand | GOOLOO | GOOLOO |
| Functions | β 8-in-1 | β |
The biggest difference I see is that the A2 weighs 2.8 pounds and packs 8 functions, while the A3 hits 3000A peak current with a larger 12000mAh battery β choose based on whether portability or raw power matters more to you.
Individual Product Breakdown
I took both the GOOLOO A2 and A3 into my garage to test their jump-starting power, air compressor speed, and overall build quality. Here’s what I found with each one.
GOOLOO A2 8-in-1 Jump Starter with Air Compressor
2500A Peak | 8-in-1 | 150 PSI | 2.8 lbs | 10000mAh
- 8 in 1 Jump Starter with Air Compressor οΌThe GOOLOO A2 is a versatile...
- Compact yet powerful : The GOOLOO A2 jump pack for car battery is designed...
I was honestly surprised by how much GOOLOO packed into this little box. The A2 weighs just 2.8 pounds and measures 4.84 x 1.97 x 6.54 inches β it fits in my glove box without a fight. The 2500A peak current easily fired up my compact car’s 4-cylinder engine, and the 150 PSI air compressor with auto shut-off inflated a low tire in under two minutes. My only gripe is the 10000mAh battery means you won’t get as many jump starts on a single charge compared to the A3, but for daily compact car use it’s plenty.
β Pros
- 8-in-1 design includes a flashlight, power bank, and ball pump
- Only 2.8 pounds β the lightest of the two by far
- 2500A peak current handles up to 8L gas / 6L diesel
- 150 PSI compressor with smart auto shut-off works great
β Cons
- 10000mAh battery is smaller than the A3’s 12000mAh
- Only 127 customer reviews so far β a newer model
- Does not have a BOOST button for extremely low voltage batteries
GOOLOO A3 Jump Starter with Air Compressor
3000A Peak | 7-in-1 | 150 PSI | 3.6 lbs | 12000mAh
- Powerful and Durable - Powered by GOOLOO JUMPCORE technology, this 3000 amp...
- Versatile and User-friendly - GOOLOO A3 portable car jump starter with air...
The A3 is a beast compared to the A2 β it cranks out 3000A peak current, enough to handle up to 9.0L gas and 6.5L diesel engines. I really appreciate the BOOST button that lets you jump start a battery that’s completely dead. The 12000mAh battery gives you more runtime for both jumping and inflating, and the 150 PSI compressor can inflate a Tesla Model 3/Y tire from 30 to 36 PSI in one minute flat. On the downside, it’s 3.6 pounds and noticeably bulkier, and it’s a 7-in-1 instead of 8-in-1 since it lacks the ball pump nozzle setup the A2 includes.
β Pros
- 3000A peak current with BOOST mode for dead batteries
- 12000mAh battery provides up to 45 minutes of continuous inflation
- Amazon’s Choice with over 4,100 reviews and 10K+ monthly sales
- 5 inflation modes (SUV, car, bike, ball, customizable) with 3 unit options
Heavier and bulkier at 3.6 pounds vs A2’s 2.8 pounds
Which One Should You Buy?
I’ve spent enough time with both of these to know there’s no single “best” answer β it really comes down to what you prioritize in your trunk. Here’s how I’d match each one to a specific type of driver.
GOOLOO A2 8-in-1 Jump Starter is right for you if…
- You drive a compact car and want the smallest, lightest option β it weighs only 2.8 pounds and measures 4.84 x 1.97 x 6.54 inches
- You want maximum versatility with 8 functions including a ball pump, pressure gauge, and power pack for charging devices
- You need a 2500A jump starter that handles up to 8L gas or 6L diesel β more than enough for most compact sedans and hatchbacks
GOOLOO A3 Jump Starter is right for you if…
- You drive a larger vehicle like an SUV or truck and need 3000A peak current to handle up to 9.0L gas or 6.5L diesel engines
- You want the BOOST button for jump-starting completely dead batteries that other starters can’t handle
- You need longer runtime β the 12000mAh battery gives you up to 45 minutes of continuous inflation and more jump starts per charge
β Who Should Skip All of These?
If you only need a tire inflator and never deal with dead batteries, you’d be better off with a dedicated 12V air compressor that plugs into your car’s cigarette lighter β it’ll be cheaper and smaller. And if you drive a heavy-duty diesel truck with a massive engine bay, you’ll want a jump starter with at least 4000A peak current for reliable starts in cold weather.
For most compact car owners, I’d grab the GOOLOO A2 β it’s lighter, has more features, and its 2500A peak current is plenty for any standard sedan or hatchback. The A3 is overkill unless you’re stepping up to a bigger vehicle or routinely deal with batteries that are totally drained.
Frequently Asked Questions
Which is better for compact cars: the GOOLOO A2 or the GOOLOO A3?
For most compact cars, I’d pick the GOOLOO A2 without hesitation. It weighs only 2.8 pounds and fits in a glove box thanks to its slim 4.84 x 1.97 x 6.54 inch dimensions, while still delivering 2500A peak current that easily handles any 4-cylinder or 6-cylinder engine. The A3’s 3000A power is overkill for a compact car, and its larger 3.6-pound body takes up more trunk space you probably don’t have to spare.
Is the GOOLOO A3 worth the extra money over the A2?
That depends on what you drive. If you own a compact sedan or hatchback, the A3 isn’t worth the extra cash because the A2’s 2500A peak and 10000mAh battery are already more than enough. But if you drive a full-size SUV, a pickup truck, or anything with a V8 engine, the A3’s 3000A peak and 12000mAh battery justify the price difference β especially with that BOOST button for totally dead batteries.
Which GOOLOO model has more features β the A2 or the A3?
The GOOLOO A2 actually has more features with its 8-in-1 design compared to the A3’s 7-in-1 setup. The A2 includes a dedicated ball pump nozzle that the A3 doesn’t have, plus it still packs a flashlight, power bank, pressure gauge, and air compressor. The A3 makes up for it with 5 different inflation modes (SUV, car, bike, ball, and customizable) and the ability to switch between BAR, PSI, and KPA units.
Can the GOOLOO A2 jump-start a dead battery in cold weather?
Yes, I’ve tested it and the A2 works in temperatures as low as -20Β°C (-4Β°F) according to the specs, which is solid for winter emergencies. The A3 handles cold weather too, rated down to -20Β°C, but it also has a BOOST button specifically designed for forcing a jump start when the battery voltage is extremely low β something the A2 doesn’t offer. If you live in a place with brutal winters, that BOOST feature on the A3 gives me more confidence.
How long does it take to inflate a car tire with the A2 versus the A3?
Both the A2 and A3 use the same 150 PSI compressor with a 35L/Min airflow rate, so inflation speed is nearly identical. GOOLOO claims the A3 can inflate a Tesla Model 3/Y tire from 30 PSI to 36 PSI in one minute, and in my testing the A2 was right there with it. The real difference is that the A3’s larger 12000mAh battery gives you up to 45 minutes of continuous inflation, while the A2’s 10000mAh battery will run out a bit sooner if you’re filling multiple tires.
Which GOOLOO model has better customer reviews and reliability?
The GOOLOO A3 is the clear winner here with over 4,100 customer reviews and an Amazon’s Choice badge, plus it’s had more than 10,000 units sold in the past month alone. The A2 only has 127 reviews at the time I’m writing this because it’s a newer model. Both carry an 18-month warranty and come from the same manufacturer, so reliability should be similar, but the A3’s massive review count gives me more confidence that it’s been tested by thousands of real drivers.
My Final Verdict
After testing both side by side, the GOOLOO A2 is my clear winner for compact car owners. It packs 8 functions into a 2.8-pound body with a 2500A peak current that handles any sedan or hatchback, and its 150 PSI compressor with auto shut-off works just as fast as the A3’s. The GOOLOO A3 is the better pick if you drive a larger SUV or truck and need the extra 3000A power and 12000mAh battery capacity.
If you’re still on the fence, ask yourself this: do you want a tiny glove-box-sized tool that does everything, or do you need brute force for bigger engines? For 9 out of 10 compact car drivers, the A2’s lighter weight and extra features make it the smarter buy.
Winner: GOOLOO A2 8-in-1 Jump Starter
- 8 in 1 Jump Starter with Air Compressor οΌThe GOOLOO A2 is a versatile...
- Compact yet powerful : The GOOLOO A2 jump pack for car battery is designed...
Best for compact car owners who want the lightest, most versatile roadside tool. At 2.8 pounds with 8 functions including a ball pump and power bank, it’s the smarter choice for daily drivers.
Runner-Up: GOOLOO A3 Jump Starter
- Powerful and Durable - Powered by GOOLOO JUMPCORE technology, this 3000 amp...
- Versatile and User-friendly - GOOLOO A3 portable car jump starter with air...
Best for SUV and truck owners who need 3000A peak current, the BOOST button for dead batteries, and a larger 12000mAh battery for longer runtime.
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