Jump Starter 4000A, VACASSO A9 Battery Jumper Starter Portable (7L Gas/4L Diesel), 12V Car Battery Booster Jump Starters Pack, Jumpstart with USB Ports, Jumper Cables, LED Light, Storage Case
Condition: New
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Availability:
In Stock.
Arrives
Thursday, Jul 30
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Color: Red
Features
- POWERFUL 4000A JUMP STARTER - Vacasso A9 car battery jump starter can jump start your 12V engines within seconds. With a peak current of up to 4000A, supporting up to 7.0L for gas and 4.0L for diesel, it can support 20 jump starts at most when fully charged. Our car jump starter is suitable for 12V motorcycles, cars, trucks, boats, tractors, and more.
- 4 IN 1JUMP STARTER - The A9 is more than a portable car jumper starter, also a power bank, LED flashlight, and SOS emergency light. Equipped with a smart LCD screen to check battery status, measures 6.61 x 3.37 x 1.7 inches, you can easily put this jump starters in your bag, or anywhere in your car, without taking up any space, good for roadside emergencies or outdoor adventures.
- QC3.0 FAST CHARGING - This battery jump starter portable also functions as a large-capacity 37Wh portable power bank, (Input: 18W USB-C, Output: USB 5V/9V/12V Quick Charge, USB 5V 2.1A ), charging 50% faster than standard chargers, our jump starter power pack efficiently charges various electronic devices such as smartphones, tablets, cameras, drones, GPS systems, and more, making it a perfect choice for travel or camping.
- 3 MODE EMERGENCY LIGHT - The battery booster jump starter offers 3 light modes: steady light (for repairs), flashing warning (for enhanced visibility), and SOS (for emergencies). This jump starter battery pack can withstand an extreme weather range of -4F to 140F and exceptionally long standby time of 24 months, incredibly convenient in emergencies and outdoor adventures, especially in low-light conditions, serving as an essential emergency tool.
- 10 INTELLIGENT SECURE PROTECTION- This A9 portable jump starter for car incorporates a high-efficiency battery management system. Our car starter jump box has 10-key protection, effectively alleviating concerns about misuse and sparks, ensuring users feel absolutely safe when using the product. [Tip] If the battery jump starter is left unused for an extended period, it's recommended to charge it every 2-3 months to maintain optimal condition.
- WHAT YOU GET: This jump starter box includes: Portable car battery jump starter, Smart jump start clamp, USB-C charging cable, a User manual, and a protective case to avoid being worn and damaged. Each Vacasso jump starter comes with our 2-year full warranty, so if you have any questions or encounter any issues with this battery jump pack, please contact us.
- QUICK TIPS: For best performance: fully charge before first use; recharge every 2-3 months. Store in a protective case, away from heat above 140F or cold. Works with vehicles up to specified engine limitsdo not exceed. Wait 30 seconds between jumps to prevent overheating.
Brand: VACASSO
Battery Cell Composition: Lithium Polymer
Voltage: 12 Volts
Vehicle Service Type: Passenger Car, Motorcycle, Van, ATV, UTV, Truck, Watercraft, Tractor
Battery Capacity: 10000 Milliamp Hours
Battery Type: Lithium Polymer
Voltage: 12 Volts
Compatible with Vehicle Type: Passenger Car, Motorcycle, Van, ATV, UTV, Truck, Watercraft, Tractor
Battery Capacity: 10000 Milliamp Hours
Amperage: 4000 Amps
Peak Output Current: 4000 Amps
Automotive Fit Type: Universal Fit
Brand Name: VACASSO
Manufacturer Part Number: A9
Manufacturer: DONGGUAN CHUANGYI NEW ENERGY TECHNOLOGY CO., LTD
Model Number: A9
Included Components: Car Jump Starter
Manufacturer Warranty Description: 12 Months
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jul 30
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
Color: Red
The media could not be loaded. I recently got this Vagasso A9 Jump Starter, and it’s easily one of the best investments for my car. Here’s why I recommend it: • Compact & Portable: It comes in a very sturdy, high-quality carrying case that keeps the jump starter and the heavy-duty clamps perfectly organized. It fits easily in the trunk or under the seat. • Powerful Performance: This 12V starter is surprisingly powerful for its size. It gives you peace of mind knowing you won't be stranded if your battery dies. • Build Quality: The clamps (red and black) feel durable and well-insulated, and the main unit has a sleek, rugged design that feels built to last. • Easy to Use: It's very straightforward—even if you aren't a 'car person,' the setup is intuitive and safe.
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Reviewed in the United States on February 9, 2026 by Elissa Ramirez
Color: Red
The media could not be loaded. I bought this to have in the car, and I’m really glad I did. It feels solid and well made, but it’s not too big at all, easy to store in the trunk with the included case. I love that it’s simple to use if I ever need it. What I really like me is how powerful it is for its size. It’s good knowing it can handle different vehicles. The extra features are a nice bonus too, being able to charge devices and having the built-in light makes it feel like a smart all-in-one tool to keep around. Overall, this is one of those things you hope you won’t need often, but you’re very happy to have when you do. Definitely great to keep in my car essentials and something I’d recommend keeping on hand. Very functional and well design.
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Reviewed in the United States on December 14, 2025 by c'est la vie🎉😘
Color: Red
I bought this to keep in my car just in case, and it really impressed me. It’s small but very powerful—I used it once on a dead battery and it started the car right away without any issues. I like that it includes the cables, USB ports, and a built-in LED light, so everything you need is in one device. The battery holds a charge well and the overall build feels solid. It’s also very easy to use, even if you’re not very familiar with cars.
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Reviewed in the United States on April 23, 2026 by Osmery Romero
Color: Red
Excellent battery starter. I bought it for emergencies and it really does what it promises. He started my car without any problem even with the battery completely discharged. It is compact, easy to use and brings very useful accessories. The charge lasts a long time and also works perfectly as a power bank for the cell phone. It gives me a lot of peace of mind to take it in the car. Very good quality for the price, totally recommended.
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Reviewed in the United States on January 5, 2026 by Daylin Suárez
Color: Red
I really like this item. I work on mowers and it is really helpful when I have to jump start one that has no better. I've also used on my suburban and it started right away. The only reason I put 4 starts is because if the mower does not starts in 2 or 3 tries the jumper pack cables will get hot and I have to wait a little bit before I try again to about heat damage.
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Reviewed in the United States on April 8, 2026 by Fabian Salas
Color: Orange
I had to purchase this for my car for times when my car died and there was no one around to assist. The case is absolutely adorable; it's a very nice size that would fit practically anywhere inside my car. I love that the lights are on the side where I would connect the cables to my vehicle, it's very convenient for jump starting my car at nighttime, I wouldn't have to force the jump starter the opposite way just to get some light to see what I'm doing. it was very compact when it arrived and I like that. I would say it functions really well and charges up very fast, within a few hours. it's worth the buy!
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Reviewed in the United States on December 10, 2025 by Tassia
Color: Red
I really liked this portable jump starter. It’s small, easy to use, and comes with a case that keeps all the cables organized. I tested it with a low battery and it worked without any issues. It feels well made, the clamps are sturdy, and the flashlight is a very useful extra. Perfect to keep in the car for any emergency.
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Reviewed in the United States on February 23, 2026 by Dioselyn gonzalez
Color: Red
My car was in a deep freeze this past week and while it would start, it wasn't turning over. I figured frozen fuel lines because that happened to me a few winters ago. I tossed in some Heet and tried starting it again 24 hours later. No change. The temps finally got just above freezing, so I tried starting it a few more times. Nothing, and the dash and dome lights were getting dim, so I knew the battery was draining (between the attempted starts and cold weather). I ordered this jump starter while it was on sale a few days ago. Received it today and connected it to the battery. I wasn't expecting anything to happen and had already resigned myself to calling a mobile mechanic. Anyway, I immediately noticed the dome light brighten and when I turned the key, the engine roared to life. Huzzah! This thing WORKS! It has a powerful flashlight and USB ports too so you can use it as a power bank. It's also packed in a compact, handy-dandy case. Enthusiastically recommended!
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Reviewed in the United States on January 7, 2026 by Professor Frink