1. Insert clamps into the EC5 port.

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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

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

Q: Is GK-J1203 suitable for my vehicle?

The GK-J1203 suits cars, trucks, boats, buses, SUVs, RVs, lawn mowers, motorcycles, and more, with gasoline engines up to 8.0L and diesel engines up to 8.0L. Designed for 12V lead-acid batteries only, not for other battery types.

Q: What should I do before using the jump starter?

All Green Keeper jump starters come partially charged out of the box but need to be charged prior to first use.

Q: How many times can I charge my phone with GK-J1203？

To determine how many times a 3.7V/20000mAh power bank can charge an iPhone (3000mAh battery), consider power transfer efficiency (60%). A 100% charged GK-J1203 can charge the phone approximately 4 times, accounting for the 60% conversion efficiency

Q: Why does your product display the peak current on the cover?

Many products avoid printing this to allow flexibility in altering peak current claims on listings. We print the actual, tested peak current directly on the product, ensuring transparency and reliable performance.

Product ID: 666778283

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Details

Brand
GREEN KEEPER
Product dimensions
22.7D x 22.7W
Item weight
0.83 Kilograms
Amperage
3000 Amps
Peak output current
1500 Amps

⚡3000A peak current jump start

🔋20000mAh dual-use power bank

🛡️Smart safety protections

Frequently Bought Together

Description

⚡ Jumpstart your journey, power your lifestyle—be unstoppable!

ALL WEATHER RELIABILITY - Operates flawlessly from -20°C to 60°C, ready for any roadside emergency.
POWERFUL 3000 A JUMP START - Instantly revives engines up to 8.0L gas/diesel—never get stranded again.
EMERGENCY LED LIGHTING KIT - Stay safe and visible with 3 built-in LED lights for any nighttime or outdoor scenario.
SMART SAFETY CLAMP TECHNOLOGY - Spark-proof, reverse polarity & temperature protection for worry-free use.
DUAL FUNCTION 20000 M AH BATTERY - Jump start your car and fast-charge your devices with PD65W tech on the go.

The Green Keeper GK-J1203 is a compact, 3000A peak current portable jump starter designed for 8.0L gas and diesel engines. Featuring a robust 20000mAh battery with PD65W fast charging, it doubles as a power bank for your devices. Engineered with smart safety protections and a versatile 3-LED emergency light kit, it ensures reliable, safe roadside assistance in extreme temperatures from -20°C to 60°C.

Specifications

Manufacturer	Dongguan Carosstech Co. , Ltd.
Brand	GREEN KEEPER
Model	GK-J1203
Product Dimensions	9 x 22.6 x 5.4 cm; 830 g
Batteries	1 Lithium Metal batteries required. (included)
Item model number	GK-J1203
Manufacturer part number	GK-J1203
Amperage	3000 Amps
Item Weight	830 g

Have a Question? See What Others Asked

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How many times can I charge my phone with GK-J1203？

Why does your product display the peak current on the cover?

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₩216800

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