Will it start a large diesel truck?

Gooloo rates the GP4000 for gasoline and diesel engines up to 10.0L, and owners report success on big diesel pickups and tractors. Very cold engines and badly degraded batteries are the hardest cases.

What does the BOOST button do?

It forces a jump when the battery voltage is too low for the pack to detect automatically. Press BOOST, then start the vehicle as usual.

How many jumps per charge?

Gooloo claims over 60 jumps on most vehicles from a full charge. Real counts drop with engine size, temperature and battery condition.

Can it charge my phone or tablet?

Yes. It has two USB outputs, one fast-charging, and a USB-C input for recharging the pack itself.

Does it work on motorcycles and ATVs?

Yes. It is built for 12V vehicles, including motorcycles, ATVs, snowmobiles and boats, as well as cars and trucks.

How should I store it?

Keep it charged and recharge it every few months, and store it away from extreme heat. A drained pack may not start a car when you need it.

Where can I buy the GOOLOO GP4000: SuperSafe 4000A Jump Starter?

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

GOOLOO GP4000: SuperSafe 4000A Jump Starter

Q: Where is the GOOLOO GP4000: SuperSafe 4000A Jump Starter cheapest?

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

Best price now

$38.40at Arga Shorea NestChecked 6 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 generally report the GP4000 fires up large gasoline and diesel engines that smaller jump packs cannot, and they like the built-in USB charging. Complaints center on weight, the bulk of the clamps and cables, and packs that lose charge or fail when left unused for long periods.

What people mention

Starting powerPraisedOwners say it starts large diesel and gasoline engines that smaller packs cannot.
BOOST modePraisedReviewers report the BOOST button revives batteries too low for automatic detection.
WeightCriticisedMany find it heavy and bulky compared with compact jump starters.
Build qualityMixedThe pack feels solid, but the clamps and cable gauge draw complaints.
ReliabilityMixedMost units work for years, but some owners report failures or charge loss after storage.
Charging portsPraisedThe USB outputs and USB-C input are seen as handy for charging phones and the pack itself.

About the GOOLOO GP4000: SuperSafe 4000A Jump Starter

The GOOLOO GP4000 is a portable 12V jump starter rated at 4000 amps. It restarts a dead car battery when you press the "BOOST" button, even if the battery voltage is very low. It can start gasoline engines and diesel engines up to 10.0L. It works with cars, motorcycles, pickup trucks, RVs, tractors, trucks, cargo vans, ATVs, snowmobiles, yachts and other 12V vehicles.

It has 10 built-in protections against misuse and sparks. 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).

The unit also works as a power bank. It has two USB output ports, one of which supports fast charging, and a USB Type-C port (5V/3A). These can charge smartphones, tablets, cameras, GPS systems and other portable devices, or recharge the jump starter itself. On a full charge it can jump-start most vehicles over 60 times. If it sits unused for a long time, charge it every 2 to 3 months.

Brand

GOOLOO

Battery capacity

24000 mAh

Battery type

Lithium polymer

Engine support

Gasoline and diesel engines up to 10.0L

Voltage

12V vehicles

Vehicle types

ATV, bus, lawn mower, motorcycle, passenger car, RV, truck, UTV, van