GP4000 Jump Starter

Professional-Grade 4000A Peak Power for Heavy-Duty Engines and Extreme Conditions

Full manufacturer title

GOOLOO GP4000 Jump Starter - 4000A 12V Car Battery Jumper Starter Portable yellow

Member of The 90+ Clubscored 90+ out of 100

Typical price

$80

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GOOLOO GP4000 Jump Starter - 4000A 12V Car Battery Jumper Starter Portable yellow image 1

Ravvy verdict

93.5 / 100

The GOOLOO GP4000 is a top-tier choice for those who need raw power for large engines, though users must accept its bulkier 3.9-pound footprint.

Best for: owners of large trucks, RVs, and those living in extreme climates
Buy it if: You want immense 4000A peak current starts large 10L engines.
Skip it if: You are compact car owners seeking a lightweight glovebox accessory.
Best alternative: Car Jump Starter 5000A, 12V Battery Jumper Starter Portable Pack Yellow (owners of large trucks, RVs, and heavy diesel vehicles)

How it scores on what matters

Engine Compatibility98.0
Safety Features95.5
Build Quality94.0
Battery Longevity92.0
Portability78.0

Ravvy factor scores, 0 to 100, derived from specs, owner reviews and category norms.

What it is

The GOOLOO GP4000 stands out as a heavyweight contender in the portable power space, offering a massive 4000A peak current that handles virtually any 12V consumer vehicle on the road. Unlike smaller units that struggle with large diesel blocks, this device is rated for engines up to 10.0L, providing peace of mind for truck and RV owners. Its rugged construction, characterized by hardened plastic and rubberized corners, suggests it is built for the realities of a messy garage or a roadside emergency rather than just sitting pretty in a glovebox. Beyond its primary jumping capabilities, the unit serves as a high-capacity power bank with dual USB ports and a dedicated Boost button for truly dead batteries. The inclusion of JUMPCORE technology ensures the power delivery is efficient enough to provide up to 60 jumps on a single charge. While it is heavier than entry-level jumpers, the trade-off is a significantly more robust internal battery and all-metal clamps that feel much more durable than the plastic-housed alternatives found in cheaper kits.

Ravvy AI insight

The GP4000 is particularly valuable for its 10.0L diesel rating, which is rare at this price point. Potential buyers should note that while it lacks a built-in air compressor, its superior thermal management makes it more reliable in sub-zero temperatures than smaller lithium competitors.

Generated from owner feedback, product specs, pricing, and retailer data. Last updated Aug 25, 2026.

What owners praise

Immense 4000A peak current starts large 10L engines
Heavy-duty all-metal clamps provide superior conductivity
Boost function bypasses dead battery resistance effectively
Sturdy rubberized housing resists drop damage
Includes a high-quality EVA carrying case for protection
Reliable performance in temperatures as low as -4 degrees F

What to know first

Notably heavier than standard portable jump starters
Wall charging block is not included in the box
USB charging cables could be longer for better reach

Specifications

Brand: GOOLOO
Voltage: 12 volts
Amperage: 4000 A
Brand Name: GOOLOO
Unit Count: 1 Count
Item Weight: 3.9 pounds
Battery Type: Lithium Polymer
Manufacturer: GOOLOO
Model Number: GP4000
Battery Capacity: 24000 milliamp_hours
Product Dimensions: 3.92"D x 8.97"W x 1.49"H
Automotive Fit Type: Universal Fit
Included Components: GOOLOO Heavy-Duty Car Jump Starter GP4000, Intelligent Jumper Cable, USB to Type-C Cable,Cigarette Lighter Socket Adapter, EVA Storage Case
Peak Output Current: 4000 A
Vehicle Service Type: ATV, Lawn Mower, Motorcycle, Passenger Car, RV, Snowmobile, Truck, UTV
Battery Cell Composition: Lithium Polymer
Manufacturer Part Number: GP4000
Item Dimensions D x W x H: 3.92"D x 8.97"W x 1.49"H
Compatible with Vehicle Type: ATV, Lawn Mower, Motorcycle, Passenger Car, RV, Snowmobile, Truck, UTV
Manufacturer Warranty Description: 18-Month warranty

How to get the most out of it

Using the Boost Button

If your vehicle battery is completely flat, the smart cables may not detect it. Press the Boost button to force power through the clamps, but ensure you have correctly matched the polarities first.

Ownership tips

care

Maintain Charge Levels

To ensure the lithium polymer cells remain healthy, recharge the unit every two to three months when not in use. Storing a lithium battery at zero charge for long periods can permanently reduce its capacity.

tip

Clean Your Terminals

For the best results, use a wire brush to clean corrosion off your car battery terminals before attaching the clamps. This ensures the 4000A current can flow without resistance.

Frequently asked questions

Where can you buy the GP4000 Jump Starter?

GP4000 Jump Starter is sold through Amazon, and GOOLOO also lists it through its own site and major retail partners. The buy link on this page goes straight to the current Amazon listing, which is where stock and pricing update most often.

How much does the GP4000 Jump Starter cost?

The last price Ravvy recorded was $80. Retail pricing on car accessories moves with promotions and stock, so treat that figure as a reference point and check the live listing before you buy.

How do you get the GP4000 Jump Starter for a cheaper price?

Three tactics work best: watch for holiday and seasonal sale events when car accessories discounts run deepest, compare the open box or renewed listing against new stock, and check whether GOOLOO is running a coupon or bundle. Adding the product to your Ravvy wishlist keeps it handy so you can revisit the listing when prices drop.

Is the GP4000 Jump Starter in stock right now?

It was in stock at our last check. Availability on popular car accessories can change within hours, so the live listing is the source of truth.

Is the GP4000 Jump Starter worth it?

Ravvy scores it 93.5 out of 100. The strongest argument for it is immense 4000A peak current starts large 10L engines. The trade off to weigh is notably heavier than standard portable jump starters.

Who should buy the GP4000 Jump Starter?

It fits owners of large trucks, RVs, and those living in extreme climates If that does not describe your situation, compare it with the other options in Car Accessories before committing.

What are the key specs of the GP4000 Jump Starter?

ASIN: B09HJH1S41. Brand: GOOLOO. Voltage: 12 volts. Amperage: 4000 A.

What are good alternatives to the GP4000 Jump Starter?

Compare it against the other scored picks in Car Accessories on Ravvy. We rank every option in that group by the same criteria, so you can see which model wins on value, quality, and owner sentiment before you decide.

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