4000A Portable Car Jump Starter: 12V Battery Jumper Box Emergency Kits for 10.0L Car Truck, Auto Booster Start Pack, Fast Charger Power Bank with USB C Ports, LED Light, Smart Protection, GK-J1205
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Model: GK-J1205
Features
- Powerful and Reliable Jump Starter: The GK-J1205 Jump Starter is not just a jump starter; its a comprehensive solution for your cars emergency needs. Capable of delivering 2000A starting current and reaching a 4000A peak, this car battery jump starter is designed to efficiently jump start most 12V vehicles, including those with 10.0L gas and diesel engines. Ensure youre never stranded with a dead battery again with this powerful jump starter.
- Portable Battery Jumper Starter: Compact yet robust, the GK-J1205 Jump Starter is your ideal portable battery jumper starter. With dimensions of 212.2189.78105.64 mm, its easy to store in your car's glove compartment or travel bag, making it ready for unexpected battery drains. This lightweight device is easy to carry and handle, ensuring you have a reliable power source wherever you go.
- Multifunctional Car Jumper Starter Portable: This car jumper starter portable device does more than just jump start your car. It includes an 88.8Wh lithium battery with multiple output ports, including a QC18W USB-A port and a PD65W Type-C port, making it perfect for charging your smartphones, tablets, laptops, and other USB devices on the go. The built-in LED light with multiple modes (Lighting/Strobe Light/SOS) adds to its versatility.
- Jump Start Battery Pack with Safety in Mind: Safety is paramount with the GK-J1205 Jump Starter. Equipped with an intelligent protection system, it features overcurrent, overcharge, overdischarge, and short-circuit protections, along with spark-proof technology and reverse polarity protection. This ensures safe and secure operation, giving you peace of mind during emergencies.
- All-in-One Portable Car Jump Starter: The GK-J1205 Jump Starter is a comprehensive car jump starter kit. It comes with a jump start battery pack, heavy-duty jumper cables, a Type-C charging cable, a cigarette lighter adapter, and a durable carrying case. Whether you have a sedan, SUV, motorcycle, or boat, this portable car jump starter ensures youre never stranded with a dead battery. Designed for all weather conditions, it operates effectively from -20C to 60C (-4F to 140F), making it a reliable companion for all your adventures.
Brand: GREEN KEEPER
Battery Cell Composition: Lithium Polymer
Voltage: 12 Volts
Product Dimensions: 3.53"D x 8.36"W x 4.16"H
Vehicle Service Type: ATV, Motorcycle, Passenger Car, RV, Snowmobile, Truck, UTV, Van
Brand: GREEN KEEPER
Product Dimensions: 3.53"D x 8.36"W x 4.16"H
Item Weight: 2.9 Pounds
Amperage: 4000 Amps
Peak Output Current: 4000 Amps
Manufacturer: Dong guan Carosstech Co.,Ltd
Automotive Fit Type: Universal Fit
Model: GK-J1205
Item Weight: 2.91 pounds
Item model number: GK-J1205
Batteries: 1 Lithium Metal batteries required. (included)
Manufacturer Part Number: GK-J1205
Date First Available: June 16, 2024
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Excellent. Long lasting battery, super easy to use, takes very lil space in the car, jumps starts immediately and it’s the best one I’ve ever bought looove it!
Reviewed in the United States on December 3, 2025 by Amazon Customer
The jump starter is simple to use and of great quality. Charges fast with an USB-C charger. Even out of the box and not fully charged it worked perfect to jump my riding mower like it was nothing. Would defiantly recommend.
Reviewed in the United States on August 19, 2025 by charles tidwell
Model: GK-J1203
Love this thing. Used many times.
Reviewed in the United States on October 17, 2025 by Mark Twain
I needed to buy a new battery, this worked on several jumpstarts with a battery that doesnt charge. I love that it works every time and is simple to use. It automatically detects that the cables are connected correctly before sending the charge, a great safety feature. It also has a light and some usb ports and a case. Great to keep in your car for an emergency!
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Reviewed in the United States on September 10, 2025 by Jordan Pinney
Ease to use , this item is usefulbit the only thing is it takes to long to change it worth the money
Reviewed in the United States on August 26, 2025 by Amazon Customer
I recently added this portable car battery jump starter to my vehicle's emergency kit, and it's been a reassuring addition. The device is compact and lightweight, making it easy to store in the glove compartment or trunk without taking up much space. Using it is straightforward: just connect the clamps to the battery terminals, and the device provides a quick and efficient jump start. The built-in LED flashlight is a handy feature, especially for nighttime emergencies. Additionally, the USB ports allow for charging other devices like smartphones, which adds to its versatility. Overall, this jump starter offers peace of mind and is a practical tool for any driver to have on hand.
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Reviewed in the United States on April 8, 2025 by David
My man loves it !
Reviewed in the United States on December 7, 2025 by Angie
Model: GK-J1205
I love this so much I'm buying another for my son's vehicle. It's very handy. On a whim I went night fishing and used the light to light up the dock area we were fishing on for about an hour and a half. It wasn't super bright but worked great.. The battery percentage only dropped by 2% during that time. A great buy.
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Reviewed in the United States on August 9, 2025 by Julie341