GOOLOO A3 Jump Starter Review
A 3.6-pound box that claims to jump a dead car, fill four tires and charge your phone. Here is how much of that holds up.
GOOLOO A3 3000A Jump Starter (JS-506)
3000 Peak Amps, 150 PSI Cordless Compressor, 12,000 mAh Power Bank & Flashlight
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A flat battery and a soft tire tend to show up at the same bad moment, usually far from a service station. This GOOLOO A3 Jump Starter Review looks at a tool built for exactly that scenario: a 12-volt, 3000-amp battery booster pack with a 150 PSI air compressor built into the same housing. It carries the model number JS-506, weighs 3.6 pounds, and fits in a glove box or door pocket.
GOOLOO rates it for gas engines up to 9.0 liters and diesel engines up to 6.5 liters, which is more capability than most drivers will ever need. The questions worth asking are whether the pump is fast enough to be useful, whether the battery holds a charge over months in a trunk, and whether a combo tool beats buying a jump pack and an inflator separately. The sections below answer each one in plain language.
Key Takeaways
- ✓ 3000 Peak Amps Power: 12,000 mAh pack starts 12V gas engines up to 9.0L and diesels up to 6.5L, with a BOOST button for batteries reading almost nothing.
- ✓ Cordless 150 PSI Pump: Features pressure gauge, five preset modes, PSI/BAR/KPA units, and automatic shut-off at your target pressure.
- ✓ 7-in-1 Versatility: Jump starter, tire inflator, bike pump, ball pump, USB power bank, LED flashlight, and digital pressure gauge.
- ✓ 10 Safety Protections: GOOLOO battery management system covers reverse polarity, short circuit, overcurrent, overheating, and overcharge.
- ✓ Recharging Speed: Recharging takes 3 to 4 hours over USB-C no matter how powerful the charger, so keep it topped off before you need it.
- ✓ Proven Rating & Warranty: 18-month warranty and 4.5-star average from over 4,500 Amazon customer ratings.
GOOLOO A3 Specifications at a Glance
| Feature | Details |
|---|---|
| Product Name | GOOLOO A3 12V 3000A Portable Jump Starter with Air Compressor (Model JS-506) |
| Brand | GOOLOO (Shenzhen Carku Technology Co., Limited) |
| Dimensions | 4.96" D x 5.87" W x 2.3" H |
| Weight | 3.6 pounds |
| Power Source | 12,000 mAh lithium polymer battery, recharged over USB-C |
| Special Features | 3000A peak output, BOOST button for very low batteries, 150 PSI cordless tire inflator with auto shut-off, LED screen, USB power bank, LED flashlight, 10 safety protections |
| Best For | Gas engines up to 9.0L and diesel engines up to 6.5L; car, SUV, truck, motorcycle, bike and ball inflation |
| Warranty | 18-month manufacturer warranty |
What Is the GOOLOO A3 Jump Starter?
The A3 is a portable 12-volt battery booster with an air compressor built into the same shell. Inside is a 12,000 mAh lithium polymer battery rated for 3000 peak amps and more than 1,000 charge cycles. Clamp it to a dead battery and it sends enough current to crank the engine without a second vehicle, jumper cables or a stranger's help.
The compressor side works cordlessly. A short detachable hose screws onto the valve stem with a lever lock, the screen reads current tire pressure automatically, and you dial in a target before pressing start. It stops on its own once it hits that number. Preset modes cover car, SUV, bicycle, ball and a custom setting, and five nozzles ship in the box for sports gear and inflatables.
Cranks large 9.0L gas and 6.5L diesel engines instantly on a single charge.
Auto-sensing pressure gauge with auto shut-off once target pressure is reached.
Emergency power bank for mobile phones plus built-in multi-mode LED work light.
Operates reliably in extreme climates from -4°F to 140°F (-20°C to 60°C).
Everything else is a bonus rather than the reason to buy: a USB output for charging a phone or tablet, an LED flashlight for roadside work at night, and a digital gauge you can use on its own. GOOLOO designed it for everyday drivers, rideshare and delivery workers, road trippers, RV and off-road owners, and anyone who parks a second car for long stretches. It runs from -4°F to 140°F, so it survives both northern winters and desert summers.
Performance Testing: How the A3 Holds Up
Ease of Use
Jump starting is the simple part: plug in the smart cable, clamp red then black, wait for the ready light and turn the key. The inflator takes slightly longer to learn because one button cycles modes while another sets pressure, and the manual is worth reading once before an emergency. Several owners describe the menu as the weakest part of the design, though it stops being confusing after a couple of uses. One quirk: the unit powers itself off after a cranking attempt, so a car that does not start on the first try means getting out and pressing the button again.
Build Quality
At 3.6 pounds and roughly the footprint of a paperback, it feels solid rather than hollow. The screen stays readable in direct sun, which matters when you are crouched next to a wheel at noon. Clamps, hose and nozzles all store in the included carry bag, and the hose detaches so nothing dangles in the trunk.
Jump-Start Performance
This is where the A3 earns its rating. Owners report cranking completely flat batteries faster than the car turns over on a healthy battery, and shop users say a single charge can restart ten or more vehicles when the only fault is a dead battery. Diesels ask more of it, and if the engine has a problem other than the battery you get roughly three or four solid 15-to-20-second cranks before the pack runs down.
Inflation Speed
The pump is quicker than most 12V cigarette-lighter inflators and quicker than many battery packs its size, but it is not a shop compressor. Topping a car tire up by a few PSI takes about a minute; taking a fully flat tire to 35 PSI takes several. Full-size cordless tools from power-tool brands are faster, at three to four times the size and price. A full charge covers roughly eight car tires, 35 motorcycle tires, 50 bicycle tires or 135 balls.
Battery Life & Reliability
Feedback here splits. Most owners say it holds charge for months and still has power left after inflating two tires. A smaller group reports units that stop holding charge within days. GOOLOO's 18-month warranty and support team come up positively in owner accounts, including replacements handled quickly. Long runs of inflating can also make the unit warm enough that a cool-down break is wise.
Storage & Maintenance
Charge it fully before the first use, recharge at least once every three months in storage, and keep charging temperatures between 14°F and 113°F. Wipe the nozzles clean and keep the hose coiled loosely. That is the whole routine.
Pros: What We Like
- Strong 3000A Output: Cranks flat batteries quickly on gas engines up to 9.0L or diesels up to 6.5L.
- BOOST Button: Revives dead cars whose battery voltage is too low to auto-detect.
- 150 PSI Cordless Pump: Features auto shut-off at your exact preset pressure.
- Bright Readable Screen: Clear display that stays easy to read even in direct sunlight.
- 7-in-1 Compact Package: Fits easily in a glove box or door pocket at only 3.6 lbs.
- 10 Safety Protections: Full BMS protection against reverse polarity and short circuits.
- Wide Operating Temp: Handles extreme conditions from -4°F to 140°F.
- Full Accessory Set: Storage bag, 5 nozzle adapters, and USB-C cable included.
Cons: What We Don't Like
- Slow USB-C Charging: Recharging takes 3 to 4 hours regardless of charger wattage.
- Auto Shut-off After Cranking: Powers off after each jump attempt, requiring power-on reset.
- Menu Learning Curve: Controls take a few tries to learn before they feel intuitive.
- Mixed Battery Retention: Minor share of owners report early battery discharge issues.
- Warms During Heavy Use: Needs a cool-down break during prolonged tire inflation sessions.
- Slower on Flat Tires: Slower to inflate completely flat tires compared to shop compressors.
Who Should Buy This Product?
Buy it if you…
- • Want an all-in-one kit: Desire one small tool that handles both dead batteries and low tire pressure.
- • Drive parked or older cars: Drive an older vehicle or park a secondary car for weeks at a time.
- • Take road trips & camp: Frequently travel long distances or drive on remote unpaved roads.
- • Need lightweight usability: Prefer something light enough (3.6 lbs) for any family member to operate easily.
- • Prefer cordless convenience: Avoid hassle with long 12V lighter socket power cables.
Skip it if you…
- • Do heavy weekly tire inflation: Air up large commercial truck or trailer tires from flat every week.
- • Own cordless power tools: Already own high-flow cordless compressors on DeWalt/Milwaukee platforms.
- • Operate heavy equipment: Need to jump commercial engines larger than 9.0L gas or 6.5L diesel.
- • Forget battery maintenance: Will not remember to top off the battery charge every 3 months.
- • Need a wall-plug maintainer: Want an AC battery trickle charger for continuous garage storage maintenance.
How the GOOLOO A3 Compares to Other Jump Starters
| Option | Peak Amps | Air Pump | Best Application |
|---|---|---|---|
| GOOLOO A3 | 3000A | Yes, 150 PSI cordless | Drivers who want jump-start power and tire inflation in one light package |
| Jump-only lithium packs | 1000–2000A | No | Smallest possible size when you only care about starting the engine |
| 12V plug-in tire inflator | None | Yes, corded | Cheapest way to top off tires, but useless with a dead battery |
| Cordless tool-brand compressor | None | Yes, faster | Frequent heavy inflation if you already own the battery platform |
The short version: a dedicated compressor fills tires faster and a bare jump pack is smaller, but neither covers both jobs. The A3 wins on value for the driver who wants one emergency item in the trunk instead of two.
What Owners Report
Common Praise
- ✓ Compact enough to store in a trunk or small compartment.
- ✓ Starts dead cars quickly, often within about 30 seconds.
- ✓ Pressure readout and automatic shut-off make inflating simple.
- ✓ Light weight suits drivers who cannot handle bulky gear.
- ✓ Support has replaced defective units without a long argument.
Common Complaints
- ✗ Charge retention varies; a minority see failures within days.
- ✗ Recharge time feels long for a USB-C device.
- ✗ Inflating a fully flat tire takes several minutes.
- ✗ Unit can overheat during back-to-back inflation.
- ✗ Menu and button layout confuse first-time users.
Summarized from publicly available owner ratings and reviews; no individual review text is reproduced here.
Frequently Asked Questions
How many amps is the GOOLOO A3 jump starter?
It puts out 3000 peak amps from a 12,000 mAh lithium polymer pack. That covers 12-volt gas engines up to 9.0 liters and diesel engines up to 6.5 liters, which includes nearly every passenger car, SUV, van and half-ton truck on U.S. roads.
How do you jump start a car with the GOOLOO A3?
Plug the smart jumper cable into the unit, clamp red to the positive terminal and black to the negative terminal, wait for the green ready light, then start the engine. If the battery is too flat for the unit to detect, hold the BOOST button and try again within the time the manual allows.
How long does the GOOLOO A3 take to charge?
Expect roughly three to four hours from empty with a USB-C charger. Owners note that a higher-wattage charger does not speed it up much, so plan on charging it overnight rather than minutes before a trip.
How fast is the built-in tire inflator?
The pump reaches 150 PSI with about 35 liters per minute of air flow, and GOOLOO rates it at one minute to take a Tesla Model 3 or Model Y tire from 30 to 36 PSI. A full charge gives up to 45 minutes of cordless inflating, which is enough for roughly eight car tires or 50 bicycle tires.
Is the GOOLOO A3 safe for modern cars?
GOOLOO builds in ten protections, including reverse polarity, short circuit, overcurrent, overheating and overcharge protection, managed by a battery management system. Still connect the clamps in the correct order and let the unit cool between heavy inflation jobs.
How often should you charge it in storage?
Top it off at least once every three months. Store and use it between -4°F and 140°F, and charge it between 14°F and 113°F. Leaving it flat in a hot trunk all summer is the fastest way to shorten its life.
Is the GOOLOO A3 worth buying?
For most drivers, yes. You get a jump starter, 150 PSI tire pump, power bank and flashlight in one 3.6-pound box for less than a dedicated cordless inflator often costs. The main trade-offs are slow recharging, a menu that takes a few tries to learn, and mixed owner reports on long-term battery health.
Conclusion: Is the GOOLOO A3 Worth Buying?
Weighing the specs against what owners actually report, this GOOLOO A3 Jump Starter Review lands on yes for most U.S. drivers. Starting power is the strongest part of the package, the cordless pump handles the tire problems people run into far more often than dead batteries, and the whole thing weighs less than a gallon of milk. Ranking second among jump starters on Amazon with a 4.5-star average across more than 4,500 ratings backs that up.
Go in knowing the limits. Recharging is slow, the controls take a session to learn, and a share of buyers have run into batteries that stop holding charge, which is where the 18-month warranty matters. If you air up big tires weekly or already own a tool-brand compressor, buy a jump-only pack instead. For everyone who wants one emergency tool in the trunk and the peace of mind that comes with it, the A3 is an easy recommendation.
18-Month Warranty • 4,500+ Ratings • 3.6 lbs Portable Unit
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