Car Jump Starter 3000A Portable: 12V Jump Start Battery Pack for 8.0L Gas/Diesel Engines, Car Battery Jumper Starter with PD65W Fast Charge, Smart Jumper Cable for Safety, 3 Emergency LED Lights Kit
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Model: GK-J1203
Features
- Premium Battery Jumper Starter: Green Keeper Jump Starter offers portable jump starting experience with peak current of 3000A, suitable for engines up to 8.0L Gas / 8.0L Diesel. This GK-J1203 can jump start up to 45 times with one full charge depending on the car engine - reliable car jump starter is an essential companion for unexpetected roadside dead battery strikes.
- PD65W Fast Charge Power Bank: 20000 mAh portable jump starter for cars doubles as a power bank. This Jump Starter model supports two-way charging equipped with PD65W charging option for charging your laptops, smart phones and more devices at rapid speed. Plus, this sleek jumper box delivers robust power able to jump start vehicles between the -20C to +60C (-4F to 140F) temperature range - a reliable car battery jumper even in extreme environments.
- Smart Safety Protection: Green Keeper battery jumper clapms has built-in safety systems that saves your from damages of miss-handling including spark proof, reverse polarity, high temparature protection to ensure your safety - jump start your car in the safest and simplest way.
- Power Up All Car Devices: The GK-J1203 jumper starter kit with 12V/6A DC output is powerful enough to power up all your 12V car devices, including mini car fridges, car pressure washers, and car vacuum cleaners - securing even the worst case scenarios on the road.
- LED Lights for Emergency: This wide range of portable jumper starter goes beyond jump starting, supplying all your roadside emergency needs regardeless the place or time - we have got you covered with full power for your outdoor adventures.
Brand: GREEN KEEPER
Battery Cell Composition: Lithium Polymer
Voltage: 12 Volts
Product Dimensions: 8.93"D x 8.93"W x 2.14"H
Vehicle Service Type: Passenger Car
Battery Type: Lithium Polymer
Voltage: 12 Volts
Compatible with Vehicle Type: Passenger Car
Battery Capacity: 20000 Milliamp Hours
Amperage: 3000 Amps
Automotive Fit Type: Universal Fit
Item Dimensions D x W x H: 8.93"D x 8.93"W x 2.14"H
Item Weight: 0.83 Kilograms
Specification Met: UL
Brand Name: GREEN KEEPER
Manufacturer Part Number: GK-J1203
Manufacturer: Dong guan Carosstech Co.,Ltd
Model Number: GK-J1203
Unit Count: 1.0 Count
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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- Affirm Pay in 4
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- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing 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
Model: GK-J1204
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