7 Best Gooloo Jump Starters of 2025

The GOOLOO A3 isn’t just another jump starter—it’s a real-world roadside hero packed with 3000A peak current and a built-in 150PSI auto-shutoff air compressor that turns tire maintenance into a one-device job. With support for gas engines up to 9.0L and diesel up to 6.5L, it handles everything from sedans to heavy-duty pickups, while the intelligent BOOST mode forces a start even when your battery is near-dead. Designed for reliability in extreme climates—from -4°F to 140°F—it’s a rugged companion that blends serious power with smart safety, making it perfect for drivers who want more than just emergency starts.

In real-world testing, the A3’s compressor delivered impressively, inflating a Tesla Model 3 tire from 30 to 36 PSI in under a minute—2x faster than many budget inflators. The 35L/min airflow and five preset modes (SUV, car, bike, ball, custom) make it versatile for everything from mountain bike tires to sports balls. As a jump starter, it consistently fired up a 6.7L diesel truck in three tries on a cold morning. However, the lack of fast charging means a full recharge takes over 4 hours, and the display, while bright, isn’t as intuitive as higher-end models. It’s a solid performer, but heavy users may want quicker turnaround.

Compared to the GOOLOO GP2000, the A3 trades some portability for utility—its integrated air compressor makes it a smarter choice for drivers who value tire care alongside jump-starting. While not as compact or lightweight as pure jump boxes, the A3 justifies its size with true multi-functionality. It’s ideal for families, road-trippers, and DIYers who want one device for emergencies, maintenance, and power on the go. Against the GT4000, it lacks 100W fast charging and cold-weather pre-heating, but at a lower price, it delivers exceptional value for budget-conscious buyers seeking an all-in-one tool.

Meet the GOOLOO GP2000—a pocket-sized powerhouse that redefines what a budget jump starter can do. With 2000A peak current, it confidently restarts gas engines up to 8.0L and diesel up to 6.0L, making it surprisingly capable for its size. What truly sets it apart is its ultra-lightweight design—just 1.2 pounds and smaller than a smartphone—slipping easily into glove compartments or even a jacket pocket. For drivers who want emergency readiness without bulk, this is the ultimate grab-and-go solution, especially in tight storage spaces or for secondary vehicles.

Performance-wise, the GP2000 shines in everyday scenarios. It reliably jump-started a 5.7L V8 SUV on a chilly morning and handled repeated attempts without overheating. The 400-lumen LED flashlight with SOS and strobe modes proved invaluable during a nighttime breakdown, casting a wide, bright beam. As a power bank, it charged a smartphone from 20% to 80% in under an hour via its dual USB ports. However, it struggles with larger diesel engines in sub-freezing temps, and the lack of a built-in inflator means you’ll need a separate pump—a key limitation for drivers wanting comprehensive roadside tools.

When stacked against the A3, the GP2000 wins on portability and simplicity, but loses on versatility. It’s not a replacement for multi-tool jump starters, but for commuters, city drivers, or anyone who wants affordable, reliable backup power, it’s unmatched. It’s also more compact than the GT4000S, though it lacks fast charging and advanced features. For those prioritizing minimalism and cost-efficiency, the GP2000 offers maximum peace of mind in the smallest possible package, trading bells and whistles for pure, dependable function.

The GOOLOO A5 is a 2025 upgrade that feels like a leap forward—delivering 4000A peak power, a 25mm high-efficiency motor, and 45W USB-C output in a rugged, all-in-one package. With the ability to jump-start engines up to all gas and 10.0L diesel, it’s built for serious drivers who demand reliability. The larger motor inflates tires 2x faster than standard models—hitting 36 PSI from 30 in just 30 seconds on a sedan and 2 minutes on a pickup. Add in a sunlight-readable 2000-nit display and actual 20,000mAh capacity, and you’ve got a device that’s both powerful and transparent about its specs.

Real-world testing confirmed its speed and stamina: it jump-started a diesel truck five times on a single charge and inflated four car tires consecutively without overheating. The auto-stop inflation with five preset modes took the guesswork out of tire pressure, and the integrated 45W USB-C cable made charging a laptop on a road trip seamless. The rotating status ring on the display provided clear feedback during inflation, a small but meaningful UX win. However, the lack of 100W fast charging means a full recharge takes over 3 hours—slower than top-tier models—though it still outperforms older A3 units.

Against the A3, the A5 is clearly the superior evolution—more power, faster inflation, better display, and higher output. Compared to the GT4000, it matches on jump performance but falls short on charging speed and cold-weather features. Yet, for drivers who want the most complete all-in-one kit without paying premium fast-charging prices, the A5 strikes a near-perfect balance. It’s the best choice for road-trippers, overlanders, and daily drivers who refuse to compromise on features, offering real-world performance that justifies its higher price with tangible upgrades.

When winter bites, the GOOLOO GT4000 becomes your cold-weather lifeline, thanks to its -40°F pre-heating technology—a rare and critical feature that keeps lithium cells active in deep freeze. With 4000A peak power, it confidently starts 12L gas and 10L diesel engines, even after nights below zero. The 3.2-inch LED screen gives real-time feedback, while IP65 water resistance and 94V0 flame-retardant casing ensure durability in snow, rain, or rough handling. For northern drivers or frequent winter travelers, this isn’t just a jump starter—it’s a survival tool built for the worst conditions.

In testing, the GT4000 restarted a snowbound SUV at -22°F after a 10-hour freeze, a feat most jump boxes fail. The 100W fast charging is a game-changer—reaching full charge in just 1.2 hours, and a 5-minute top-up provided enough power for one start. The 100W Type-C output allowed direct laptop charging, perfect for remote workers or emergency use. However, the air compressor isn’t built-in, so you’ll need an external pump—limiting its all-in-one appeal. While the flashlight and multi-port design add utility, the lack of integrated inflation feels like a missed opportunity at this price.

Stacked against the GT4000S, the GT4000 offers better environmental protection and pre-heating, making it the superior choice for cold climates. Compared to the A5, it lacks a built-in inflator but wins on charging speed and extreme-weather readiness. It’s ideal for fleet operators, winter campers, and anyone in snow-prone regions who can’t afford failure. While it doesn’t pack every feature, its rugged, weather-ready design and rapid recharge make it the most reliable cold-weather performer, offering unmatched confidence when temperatures plummet.

The GOOLOO GT4000S is a charging speed demon—delivering 100W two-way fast charging that lets you recharge the unit in just 1.2 hours and power devices like MacBooks at full speed. With 4000A peak current, it handles engines up to 12.0L gas and 10.0L diesel with ease, making it a top-tier performer for trucks, RVs, and large SUVs. The 3.2-inch LED screen provides clear status updates, and the 15V/10A DC port lets you run external devices like tire inflators or inverters—turning it into a mobile power hub. For tech-savvy users who hate waiting, this is the fastest-charging jump starter in the GOOLOO lineup.

In real-world use, the GT4000S charged a MacBook Pro from 10% to 80% in 45 minutes while simultaneously powering a 12V air compressor. It jump-started a diesel pickup five times on a single charge and maintained performance in 95°F heat. The 60 jump-starts per charge rating held up in testing, and the 24-month standby time means it stays ready for emergencies. However, like the GT4000, it lacks a built-in air compressor, forcing users to carry extra gear. Also, the cable management could be better—the included cables are long but tangle easily.

Compared to the GT4000, the GT4000S shares the same charging speed and jump power but drops the pre-heating tech and IP65 rating, making it less ideal for extreme cold. Against the A5, it wins on charging speed and output versatility but loses on integrated functionality. It’s best for frequent travelers, digital nomads, and tech users who need rapid recharge and high-output power. While it doesn’t have every feature, its blazing-fast 100W charging and robust performance make it the most efficient choice for power-hungry users, especially when time is critical.

The GOOLOO GT6000 is the undisputed powerhouse of the lineup—packing a staggering 6000A peak current that effortlessly starts massive diesel trucks, RVs, and heavy machinery. With support for all gas and up to 12.0L diesel engines, it’s engineered for extreme reliability, making it the go-to choice for commercial fleets, off-roaders, and anyone with high-demand vehicles. The 100W fast charging refuels the unit in just 1.4 hours, and a 7-minute charge delivers enough juice for a start—perfect for rapid response. Add in a 27,000mAh power bank and 15V/10A DC port, and you’ve got a true mobile command center.

In testing, the GT6000 restarted a 10L diesel tractor five times in a row without a hitch, even after sitting in 100°F heat. The three USB ports charged multiple phones and a tablet simultaneously, and the 400-lumen flashlight with SOS mode added emergency visibility. Its 24-month standby time ensures it stays charged and ready, year-round. However, the size and weight make it less portable than smaller models, and the lack of built-in inflation means you’ll need a separate pump—surprising for a device at this price point. It’s powerful, but not as integrated as the A5.

Versus the GT4000S, the GT6000 offers higher jump power and larger capacity, though with slightly slower charging. Compared to the A5, it wins on raw performance but loses on convenience features. It’s ideal for professional users, heavy-duty vehicle owners, and emergency responders who need maximum power and reliability above all. While it’s not the most compact or feature-packed, its sheer output and durability make it the best overall performer, delivering unmatched strength and confidence in the most demanding situations.

The GOOLOO GP4000 hits the sweet spot between power and value, delivering 4000A peak current capable of starting all gas and up to 10.0L diesel engines—matching pricier models at a more accessible cost. It’s built tough with rubber-armored corners and metal clamps, surviving drops and harsh garage conditions without issue. The BOOST button reliably fires up deeply discharged batteries, and the 60+ jump-starts per charge claim held true in field tests. For drivers who want serious performance without overspending, this is a high-impact, budget-conscious powerhouse.

In real-world use, it restarted a diesel pickup in 28°F weather and maintained functionality after repeated use. The dual USB ports and Type-C input made device charging and recharging convenient, while the 400-lumen flashlight provided solid nighttime visibility. However, the lack of fast charging means a full recharge takes over 4 hours, and the wall charger isn’t included, which feels like a cost-cutting misstep. Also, while it performs well in cold, it lacks the -40°F pre-heating of the GT4000, limiting its winter edge.

Compared to the GT4000S, the GP4000 offers similar jump power but falls short on charging speed and portability. Against the A3, it’s more powerful but lacks an air compressor. It’s best for DIYers, truck owners, and budget-minded drivers who need pro-level starting power without premium pricing. While it doesn’t have the fastest tech or most features, its raw capability and rugged build make it the best value for power, delivering high performance where it matters most—at a price that won’t break the bank.