GKFLY Car Jump Starter Portable Power Bank 3000A Car Battery Booster 12V Car Starting Device for Petrol Diesel 6.0L/5.0L

6 reviews
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Product Details

Please pay attention to this note:
1. Please charge after receive jump starter.
2. Charge every 3 months, low power may fail start.
3. Charge phone tablet only when it’s in urgent need. efficiency is about 50%.
4. The charge speed or discharge speed will be fast during the last 15% power of the jump starter. Please do not worry about these problems. This is the characteristic of high-rate lithium batteries, and it will not affect product quality and normal use.

Specifications:

Model: GG-JS-M43
Battery Capacity :59.2Wh
Peak Current :3000A
Car Jump Start Output :12V
USB Output :5V-2A
Gas Engine Starting :Up to 6.0L

DieselEngine Starting :Up to 5.0L
Operating Temperature :-20℃-60℃

Model: GG-JS-RATEL

Size: 180*85*35mm

Weight: 398g

Type-C Input: 5V–2A

USB Output: 5V–2A; 5V–1A

5.5mm DC Output: 15V–5A

Jump Start Output: 12V(on-load) / 16V(no-load)

Full charging time: approx 6h

Peak current: 4000A

Operation temp. : -20℃~60℃

Protections: Short circuit proof, over charge protection, discharge protection

Lifetime: >3000 cycles


Why it’s necessary to get a jump starter?
1. Long standby time, car battery run out;
2. Make preparation for a long driving trip;
3. Your car can’t start due to low power or freezing winter.

Note:
The red clip and the black clip need to be connected correctly,incorrect connection maybe cause an explosion:
Connect the red clip to the positive poles of the car battery”+”
Connect the black clip to the negative poles of the car battery“-”

Start Large Engine Output Volume Vehicle
Low Temperature Startup
59.2Wh large capacity

3000A/4000A Large Peak Current

Excellent adaptability:

Low temperature startup
Fearless of severe cold

Upgrade Protection– Safe and efficient use of high-quality electrical cores:
Short circuit protection

Overcharge protection
Constant current protection

Voltage stabilizing protection

Over discharge protection
Temperature protection

Magnetic field protection

Polymer lithium battery

Diesel Gasoline Dual Start Strong Start:
Gasoline engine vehicle up to 6.0L
Diesel engine vehicle up to 5.0L

Dual USB interface:
Support mobile phone fast charging

Emergency Rescue LED Light:
Torch mode:
Constant light mode
48 hours
Press and hold the “Power” key for 3 seconds to turn on.

Flashing mode:
High-frequency flash
Press the switch again to flash.

SOS mode:
3 short / 3 long/ 3 short distress signal flashing mode
48 hours
Press the switch again to SOS mode.

Just four steps to start the car:
1. Insert the clip into the power port, and ensure sufficient power.
2. Connect the red clip to the positive electrode of the car battery“+”.
Connect the negative electrode of the car battery with a black clip“-”
3. Return to the car and start the car.
4. Remove the clip after starting the vehicle (recommended to be removed within 30 seconds).

Item Specifics
Battery Type:
Lithium ion
Is it with battery:
Yes
High-concerned chemical:
none
Reviews
(6)
Verified Buyer
M***e
19 May 2026 00:00

I received it and it arrived with 95% charge. Worked very well, managed to start 2 completely empty cars (2.5 TDI & 2.6 petrol) with 95% power, after which it was empty or dead. At 25%, it crashes and then shows as empty, which is not very nice (1 star deduction). Even the device's charging didn't take long, which is advantageous. The device is nice and compact, so it fits in almost any corner of the car, making it easy to store. In principle, I would say that the price-performance ratio is quite reasonable.

Verified Buyer
J***n
18 Feb 2026 00:00

Item is the same as described

Verified Buyer
Х***ч
1 Feb 2026 00:00

There are 4 Schottky diodes installed in parallel on the positive electrode, model STPS2045C, rated at 2x10 amperes each. The total assembly is rated at 80A. Considering that the starting current can reach 600-800A (in parallel with the standard battery), starting the engine at low temperatures and with a standard battery that is not fully charged can result in a FIASCO! The conclusions are obvious.

Verified Buyer
Я***н
15 Dec 2025 00:00

All is well. Haven't tried it at work yet.

Verified Buyer
I***o
29 Nov 2025 00:00

I like it, thank you.

Verified Buyer
r***r
16 Sep 2025 00:00

Haven't used yet looks good only let down was it must of came by row boat. Took for ever to arrived

Shipping & Returns

SHIPPING

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 15-40 Business days
Canada, Europe 15-40 Business days
Australia, New Zealand 15-40 Business days
Central & South America 15-40 Business days
Asia 15-30 Business days
Africa 15-40 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

RETURNS

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of car accessories (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of https://www.carforaccessories.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Why Buy From Us

A few reasons why buy from us:

SAFE SHOPPING

We try our best to make your shopping experience not only pleasant, seamless and hassle-free, but also secure.

FREE SHIPPING

Enjoy flexible international shipping services that currently operate in over 200 countries across the world.

NEW ARRIVALS

Brand new products are available on a regular basis.

PRICE PROMISE

We don't want you to choose between the best value and the best service. That's why we offer competitive pricing.

EXCELLENT CUSTOMER SERVICE

Knowledgeable and professional support team is always happy to help you.

EASY TRACKING

Check your order status online. As easy as that!

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