Will it start a large diesel truck?

Gooloo rates it for all gasoline engines and diesel engines up to 10.0L. It handles most pickups, vans and tractors, though very cold weather or a nearly dead battery may need the BOOST button.

How is it different from smaller Gooloo jump starters?

The GP4000 has a much higher 4000A peak output for big engines, where compact 1000–2000A packs are meant for cars and motorcycles. The trade-off is more weight and bulk.

Can I charge my phone with it?

Yes. It has two USB outputs, one with fast charging, plus a USB-C input for recharging the pack itself. It charges phones, tablets, cameras and GPS units.

Does it work on motorcycles and ATVs?

Yes. It is built for 12V vehicles, so it covers motorcycles, ATVs, snowmobiles, cars, trucks and boats as well as larger engines.

What is the BOOST button for?

BOOST forces a jump start when the battery voltage is extremely low and a normal start fails. Press it to override the safety cutoff and start the vehicle.

What comes in the box?

The jump starter, heavy-duty jumper clamps, a USB charging cable and a carry bag. Check the listing for the exact accessory set.

Where is the GP4000 Jump Starter cheapest?

At Arga Shorea Nest, for $38.40, 68% under what the other stores charge, as of our latest check.

Where can I buy the GP4000 Jump Starter?

10 stores we checked sell it, including Arga Shorea Nest, Amazon, eBay, Best Buy, Walmart.

Gooloo

GP4000 Jump Starter

Best price now

$38.40at Arga Shorea NestChecked 5 h ago

68% under what the other stores charge

Compared across 10 stores. Prices are checked against each store and labelled with when.

Visit Arga Shorea Nest

What reviewers say

Owners of the GP4000 generally report it starts big diesel engines that smaller packs fail on, and they like the BOOST override and the USB charging. Complaints center on its size and weight and on the short cable reach on some vehicles.

What people mention

Starting powerPraisedOwners say it fires up big diesel engines that smaller jump packs cannot turn over.
BOOST functionPraisedUsers report the BOOST button starts cars whose batteries are too flat for a normal jump.
Size and weightCriticisedMany owners find it heavy and bulky compared with compact 1000–2000A packs.
Cable lengthCriticisedSome say the jumper cables are short and awkward to reach batteries in tight engine bays.
Power bank usePraisedReviewers like charging phones and tablets from the USB ports on trips.
Self-dischargeMixedA few owners note the pack loses charge over months in storage and needs topping up.

About the GP4000 Jump Starter

The Gooloo GP4000 is a portable 12V lithium jump starter rated at 4000 amps. It starts gasoline engines and diesel engines up to 10.0L. Pressing the "BOOST" button restarts a vehicle even when the battery voltage is extremely low. It works with 12V cars, motorcycles, pickup trucks, RVs, tractors, trucks, cargo vans, ATVs, snowmobiles and yachts.

The unit has 10 built-in protections against misuse and sparks (SuperSafe technology). The smart jumper cables have all-metal clamps. The case is hardened plastic with rubber corners to withstand drops, and a built-in flashlight helps in night-time emergencies. A smart chip supports starting in temperatures from -4°F (-20°C) to 140°F (60°C). On a full charge it can jump-start most vehicles over 60 times.

It also works as a power bank. It has two USB output ports, one of them supporting fast charging, and a USB Type-C port (5V/3A). These can charge phones, tablets, cameras, GPS units and other devices, or recharge the jump starter itself. If it sits unused for a long time, charge it every 2-3 months. Before use, make sure it has enough battery power and connect the clamps firmly to clean battery terminals.

Brand

Gooloo

Model

GP4000

Peak current

4000 amps

Voltage

12V vehicles

Engine support

All gasoline engines and diesel engines up to 10.0L

Jump starts

Over 60 per full charge on most vehicles