---
product_id: 719021484
title: "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"
brand: "green keeper"
price: "S$142"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/719021484-car-jump-starter-3000a-portable-12v-jump-start-battery-pack
store_origin: SG
region: Singapore
---

# 3000A peak jump start power 20000mAh PD65W fast charging Smart safety protections 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

**Brand:** green keeper
**Price:** S$142
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your ride and your life—never get stranded again!

## Quick Answers

- **What is this?** 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 by green keeper
- **How much does it cost?** S$142 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/719021484-car-jump-starter-3000a-portable-12v-jump-start-battery-pack)

## Best For

- green keeper enthusiasts

## Why This Product

- Trusted green keeper brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Jump Power:** Instantly revives engines up to 8.0L gas/diesel with a massive 3000A peak current.
- • **Emergency-Ready LED Kit:** Stay prepared anytime, anywhere with 3 bright LED lights for roadside and outdoor emergencies.
- • **Rapid PD65W Fast Charging:** Dual-purpose 20000mAh battery powers your devices and recharges lightning-fast.
- • **Safety-First Smart Clamps:** Built-in spark proof, reverse polarity & temperature protection for worry-free jump starts.
- • **Versatile 12V Power Output:** Run all your essential 12V car gadgets—fridges, vacuums, and more—on the go.

## Overview

The Green Keeper GK-J1203 is a compact, ultra-powerful 3000A portable jump starter designed for 8.0L gas and diesel engines. Featuring a 20000mAh battery with PD65W fast charging, it doubles as a power bank for your devices. Equipped with smart safety clamps and a 12V output for car accessories, plus emergency LED lights, it’s the ultimate all-in-one roadside companion for professionals who demand reliability and speed.

## Description

Full description not available

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | GREEN KEEPER |
| Product Dimensions | 8.93"D x 8.93"W x 2.14"H |
| Item Weight | 0.83 Kilograms |
| Amperage | 3000 Amps |
| Specification Met | UL |
| Manufacturer | Dong guan Carosstech Co.,Ltd |
| Automotive Fit Type | Universal Fit |
| Model | GK-J1203 |
| Item Weight | 1.83 pounds |
| Item model number | GK-J1203 |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Manufacturer Part Number | GK-J1203 |

## Product Details

- **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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71K-QSmAgeL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/61ZToAutOSL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71OXG4SBW7L.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/61a1NY1yApL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/71IpKsEUqhL.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: How to jump start?**
A: 1. Insert clamps into the EC5 port.

**Q: Is GK-J1203 suitable for my vehicle?**
A: 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?**
A: 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？**
A: 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?**
A: 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.

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**Shop now:** [https://www.desertcart.sg/products/719021484-car-jump-starter-3000a-portable-12v-jump-start-battery-pack](https://www.desertcart.sg/products/719021484-car-jump-starter-3000a-portable-12v-jump-start-battery-pack)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-27*