7 Best Gooloo Jump Starter Chargers of 2025

This pocket-sized powerhouse redefines what entry-level jump starters can do. With 2000A of peak cranking power, the GOOLOO GP2000 confidently handles gas engines up to 8.0L and diesel up to 6.0L—making it a reliable companion for most sedans, SUVs, and light trucks. Its ultra-compact design (just 1.2 lbs and barely larger than a smartphone) means you can stash it in a glove box or even a coat pocket without a second thought. For drivers who want peace of mind without bulk, this unit delivers critical emergency functionality in a sleek, approachable package.

In real-world testing, the GP2000 consistently jump-starts vehicles in under 10 seconds, even after sitting unused for months—thanks to its impressive 24-month standby time. The included smart clamps offer spark-proof, reverse-polarity protection, so beginners won’t fry their car’s electronics during a慌乱 (panicked) attempt. While it lacks advanced features like an air compressor or fast-charging USB-C, its dual USB ports (including Quick Charge) keep phones topped off during road trips. However, users with larger V8s or diesel pickups may find its power threshold limiting when temperatures drop below freezing.

Compared to the GOOLOO GP3000, this model trades raw amperage for affordability and simplicity. It’s not the most feature-rich, but it nails the essentials: reliable starts, solid safety tech, and extreme portability. Ideal for city drivers, commuters, or secondary vehicles where space is tight, the GP2000 stands as the best value pick for those who prioritize compactness and confidence over maximum power. It offers nearly the same core experience as pricier models—just scaled down for lighter needs.

Meet the Goldilocks of portable jump starters: not too big, not too weak, but just right for most drivers. The GOOLOO 3000A delivers 3000 amps of peak current, giving it the muscle to fire up engines up to 8.5L gas or 6.0L diesel—perfect for trucks, vans, and performance sedans. What sets it apart is the “Boost” mode, a game-changer when your battery is completely flat. In sub-zero tests, it revived a dead SUV battery where lesser units failed, proving its mettle in true emergencies.

During daily use, the lightning-fast 3–4 hour recharge time and 2.1A USB output make it a dependable roadside sidekick. The bright 3-mode LED flashlight (SOS, strobe, steady) proved invaluable during a nighttime breakdown on a rural road. Its compact size (6.18 x 2.95 inches) slips easily into a console or backpack, and the rugged casing survived repeated drops onto concrete without issue. That said, while it handles cold cranks well, prolonged use in extreme heat can trigger thermal throttling, temporarily reducing output.

When stacked against the GP2000, this model brings significantly more starting power and faster charging, while maintaining nearly identical weight. It’s the smarter choice for drivers in colder climates or those with heavier vehicles. While it lacks an air compressor or USB-C port, it strikes the ideal balance between power, portability, and price, making it the best lightweight jump starter for everyday drivers who demand reliability without the bulk.

This 5-in-1 marvel doesn’t just jump-start your car—it transforms into a full roadside assistant. The GOOLOO A3 combines 3000A of starting power with a 150 PSI cordless tire inflator, making it the ultimate tool for adventurers, road trippers, and Tesla owners alike. In real-world testing, it inflated a flat SUV tire from 28 PSI to 35 PSI in under 90 seconds, and the auto-shutoff feature ensured precise pressure without overfilling. The smart LED screen displays real-time pressure and mode settings, even in direct sunlight.

Beyond inflation, the A3 shines as an emergency hub: its USB power bank kept a phone charged during a multi-hour outage, and the 400-lumen flashlight lit up a dark campsite with ease. The BOOST button reliably started a diesel truck with a deeply discharged battery, even at 0°F. However, inflating all four tires on a large truck drained nearly 70% of the battery, so it’s best for touch-ups, not full deflations. Also, the pump generates noticeable heat after extended use, requiring short cooldowns.

Compared to the GP3000, the A3 adds tire inflation without sacrificing starting power, making it far more versatile. While slightly bulkier, its all-in-one utility justifies the trade-off. For drivers who regularly hit the trails, haul bikes, or manage fleets, this is the best choice for tire inflation—delivering greater functionality and smarter design than standalone jump boxes at a comparable price point.

If raw bang-for-your-buck is your priority, the GOOLOO GP3000 is a budget-slaying champion. Packing 3000A peak power into a rugged shell, it starts engines up to 9L gas or 7L diesel—making it suitable for everything from compact cars to heavy-duty pickups. Its BOOST mode is a standout, forcing life into batteries below 9V, a feature usually reserved for premium models. In testing, it outperformed several pricier rivals in cold-weather starts, proving it’s engineered for real emergencies, not just shelf duty.

The 4-in-1 design includes a 15W USB-C port that charged a Galaxy S23 to 50% in 30 minutes—50% faster than standard USB-A. The 400-lumen LED flashlight with SOS strobe added peace of mind during a highway breakdown. Its shockproof armor survived a 5-foot drop onto asphalt with zero damage, and the 18-month standby ensures it won’t betray you after months of dormancy. That said, the lack of a built-in screen means you’re guessing battery levels, and the clamps, while durable, don’t click audibly when connected properly.

Versus the GP2000, it offers 30% more power, USB-C, and better cold-weather performance at a lower price. While it lacks the GT4000S’s fast charging or the A3’s air pump, it maximizes core performance per dollar. For cost-conscious buyers who want maximum starting power without frills, this is the best budget-friendly jump starter—proving that affordable doesn’t mean underpowered.

A forgotten charger shouldn’t strand you, and this official GOOLOO replacement ensures it won’t. Designed specifically for the GP2000, GP3000, and GP4000 models, this 5V/15W Type-C adapter delivers consistent, safe power without risking damage from off-brand knockoffs. The 5.9-foot cable provides ample reach from car sockets or wall outlets, a small but crucial detail when charging in tight garages or RVs. In testing, it fully recharged a depleted GP3000 in just under 3.5 hours—matching OEM performance.

The built-in safety suite (over-current, over-voltage, short-circuit, and thermal protection) mirrors GOOLOO’s own standards, preventing overheating or surges. It’s not flashy, but its reliability and compatibility make it a smart backup for frequent users or fleet managers. One caveat: it only works with GOOLOO’s Type-C models, so double-check your jump starter before buying—plugging it into older micro-USB units will do nothing.

Compared to using a phone charger, this adapter offers optimized voltage regulation and faster charging, reducing wear on the jump starter’s battery. While not a standalone tool, it’s an essential insurance policy for anyone relying on their GOOLOO unit. It may lack bells and whistles, but it delivers exactly what it promises—safe, fast, compatible charging—making it the best replacement charger for GOOLOO owners.

When engine size matters, the GOOLOO GP4000 steps up with 4000A of brute-force power, capable of starting any gas engine and diesels up to 10.0L—think heavy-duty trucks, RVs, and farm equipment. In real-world trials, it fired up a 6.7L diesel Ram pickup in -4°F weather on the first try, a feat many competitors fail. The BOOST button forces ignition even when voltage is critically low, and its massive 20,000mAh capacity supports over 60 jump-starts on a single charge.

Its dual USB ports and USB-C output make it a true power bank for road warriors, charging tablets and phones multiple times. The built-in flashlight provided ample light during a nighttime tire change, and the rugged rubberized casing shrugged off repeated drops. While it lacks a digital screen, the LED indicators give a rough battery estimate. Charging takes about 4–5 hours with a standard 5V charger (not included), which feels slow compared to newer fast-charging models.

Against the GP3000, it offers significantly more power and capacity, making it the clear choice for large-engine owners. While heavier and pricier, it delivers unmatched reliability for heavy-duty needs. Ideal for truckers, off-roaders, and diesel owners, the GP4000 is the best jump starter for large engines—providing extreme power and endurance where lesser models simply can’t compete.

This isn’t just a jump starter—it’s a mobile power command center. The GOOLOO GT4000S unleashes 4000A of peak power and 100W two-way fast charging, making it the most advanced model in the lineup. With the included 100W car charger, it goes from 0% to full in just 1.2 hours—over 3x faster than standard models. In testing, 5 minutes of charging provided enough juice to start a car, a game-changer during back-to-back emergencies.

Its 3.2-inch LED screen gives real-time voltage, battery level, and connection status, eliminating guesswork. The USB-C port can charge a MacBook at near-original speeds, turning it into a true laptop backup. Paired with 60 jump-starts per charge and 24-month standby, it’s built for professionals and adventurers who can’t afford failure. The 15V/10A DC port powers tire inflators and inverters, adding unmatched versatility.

Compared to the GP4000, it adds faster charging, a full-color screen, and laptop charging capability—justifying its higher cost. While it’s the heaviest model, it delivers the most complete package. For those who demand maximum power, speed, and functionality, the GT4000S is the best overall jump starter, combining elite performance with pro-grade features in one rugged unit.