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4000A Jump Starter
4000A Jump Starter

When car has dead battery, just choose Sucfocus jump starter.

8 years of research and development, focusing on the field of emergency battery jump start.

A 9500㎡ logistics and warehousing base has processed orders from millions of customers.

A young international team of 40 people with strong design experience.

Sucfocus jump starter has three lighting modes to meet your needs at any time.




【More Powerful Jump Starter】SUCFOCUS self jump starter battery pack can quickly jump start a dead car battery. Even if the battery voltage is too low, pressing the “RST” button will force the car to restart. With boosted 4000A peak current, the SUCFOCUS car battery jump starter power pack can restart your 12V vehicles (Up to 9.0L gas/7L diesel engines) in seconds with a 45 C high-rate lithium battery.
[Universal 12V Compatibility] Not just for cars! Safely start motorcycles, ATVs, SUV, UTV, snowmobiles, dirt bike, boats, lawnmowers, trailer, RV, tractor and so on. A versatile emergency tool for all your 12V battery needs.
【Comprehensive Safety】Our battery jumper starter portable for car has 10 intelligent safety protections against overcharge, short circuits, Spark-proof, reverse polarity, overload, power surging and sparking, and so forth. The car battery jumper starter portable cable indicator light real-time notifies incorrect operations, protect you and your vehicle.
【Multi-Function 4 in 1】This is not only a jump box for car battery, a portable power bank, an LED flashlight, but also a safety hammer. Designed with the USB outputs (9V/2A), quick charge 3.0 can fully charge (Only takes 2.5 – 3 hours to fully charge) your cellphones, tablets, and other mobile devices at the fastest speed possible. (Note: wall charger is not included). As a LED flashlight with 3 lights modes: Flash Light, Strobe Light, and SOS Light. With car battery standby for about 24 months, this emergency jump box for car battery Lithium Battery Jump Starter power pack is a life-saving helper in dark environments such as camping, emergencies, and travel.
【Portable & Compact】This emergency battery jumper starter ultra-compact weighs only 0.78 lbs and measures 7*3.3*1.5 inches, is ultra-lightweight, more portable than other jump starter. it is very easy to store in a car, a travel bag and motorcycle saddlebags. Say Hello to our new smaller LCD car battery jump starter! A Visible LCD Display can clearly displays all the information you need. When you have drained batteries on a road trip, you don’t have to guess by the indicators anxiously or wait hours for AAA/someone for help on desolated interstates. stocking stuffers for men and women.
【In The Box】You will get a 1 x F19 Portable Car Jump Starter battery pack, 1 x Smart Jumper Cables for Car, 1 x Micro USB Charging Cable, 1 x User Manual, 1 x Portable Sac, It is very easy to charge. a 2-Year worry-free refund and replacement, lifetime technical support and 7/24 customer service for this car accessories.
【TIPS 】Please make sure the battery power of SUCFOCUS Motorcycle battery jump starter power pack battery portable is above 75% before use. And if you don’t use it for a time, it is recommended to charge this car battery jump starter every 3 months to keep the car start battery pack in a healthy state. To prevent battery performance issues in cold conditions, please store the jump starter at a proper temperature. Avoid charging or using the jump starter in extreme cold.
8 reviews for Car Battery Jump Starter, 4000A Battery Jumper Starter Portable (for 9.0L Gas or 7.0L Diesel Engine), Jump Box, Jump Starter Battery Pack with Jumper Cable, LED Light, USB QC3.0 (Red)
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$35.99
MSA –
I Loved It
After using the SUCFOCUS Jumper Starter Portable 3000A for a few days only, I can confidently say that this is one of the best car battery jump starters I’ve owned. It’s incredibly powerful and super convenient, and I’ve been impressed with its performance and thoughtful design. Here’s my experience with it:Best of all is the 3000A peak current. I’ve used it to jump-start my SUV (with a 5.5L gas engine), my son’s Accord, and my neighbor’s pickup truck (diesel), and it worked flawlessly all the time. It starts vehicles in seconds, and I never had to try more than once. This one comes with everything, unlike some jump starters that leave you hunting for extra cables or cases. The package includes sturdy smart clamps, a USB-C cable, and a handy carrying case that neatly organizes the device and its accessories. The case makes it super easy to keep everything together in my car trunk without worrying about losing parts.The jump starter is surprisingly lightweight and compact for its power. One of my favorite features is how quickly it recharges. I fully charged it in just a few hours. Even after using it several times to jump-start vehicles and charge my phone, it still had plenty of juice left. Knowing it’ll always be ready when I need it gives me peace of mind.The built-in USB ports are a great touch. I plan to use this device to charge my phone and even my tablet while on a road trip and camping in the summer. The LED flashlight is another bonus. It’s the kind of feature you don’t realize you need until you’re in an emergency.For the price, I honestly think this is a steal. I’ve looked at similar jump starters (even on Temu), and while some are a little cheaper, they don’t match the power, features, or accessories that come with this one. The carrying case alone makes it feel like a premium product, and I didn’t have to purchase any extras.Honestly, I haven’t found many negatives with this jump starter. If I had to nitpick, I can say that the jumper cables are a little shorter. It hasn’t been an issue yet, but I can see how it might be tricky if you’re working with an awkwardly positioned battery. The flashlight is helpful, but it could be brighter. It’s okay for emergencies, but don’t expect it to replace a dedicated high-lumen flashlight.
Elpha Plus –
Its very effective
This little device is an absolute powerhouse! I was skeptical that it could handle my large truck, but it started a dead 7.0L diesel instantly without even breaking a sweat. The build quality feels rugged, and the heavy-duty jumper cables that come with it inspire confidence. I love that it also functions as a high-speed charger for my devices with the QC3.0 port. The built-in LED light is incredibly bright and has already come in handy during a nighttime emergency. It is compact enough to store under the seat, yet it delivers 4000A of pure cranking power. I feel much safer knowing I have this jump pack on board for any adventure. Highly recommend this for anyone with a big gas engine or a diesel truc
Mary Karla Marrero –
Excellent Battery Jump Starter Powerful, Compact, and Very Reliable
I bought this battery jump starter just in case, and honestly it surprised me a lot. It’s compact, easy to use, and very powerful. I already tested it and it started the car with no problems at all, super fast. I really like that it has a display where you can see the battery level, and it also includes a light, which is very useful in an emergency. You can tell it’s good quality and definitely worth having in the car. I 100% recommend it it gives you great peace of mind knowing you have it when you need it.
Unco Cookie –
Solid easy to use
Works as advertised. I am not surprised to see these work well as its been out in the market for quite a while. Does everything it needs to, includes everything including a usb-c cable to charge it. Great portable charger and does jump your battery when needed. I used it mainly as a battery maintainer for some cars that are sitting for a bit. Great value and battery life seems to be holding so far.
Shortfat&bald –
Good jump starter
It works well. Great to keep in your car or truck. I’ve used it twice on other people’s vehicles.
Hopeful Skeptic –
Works Well and Easy To Use
I let my Toyota Corolla sit for so many weeks that the battery went dead. This jump starter started it instantly. The charge percentage dropped by slightly more than half, so it might not be able to work more than once without recharging. However, charging it back to 100% is easy and took less than an afternoon.
Ed –
Easy battery charger to use
This has been a life saver. Car battery was dead one day whe we got ready to leave grocery store. Thought know has been along time since I had charged the little battery charger. It had been several months. It still had 70% charge. Car started right up. Good value for the money. Easy to store in car and easy to use. Even 82 yr old women can use.
Powder Puff –
Super Fast Delivery and Excellent Product
My Jeep Wrangler had a dead battery this morning. The battery was so dead that I had to unlock the door manually to get in. We have a huge, heavy battery charger that is a pain to drag out of the garage. At 10 am this morning, I went to Amazon and ordered the SucFocus jump starter because of its compact size, safety, quality, ease of use and good reviews. It was $39, I received a $10 promotion, added $9.99 for 1 hour delivery and left a $10 tip. I was amazed that the jump starter was delivered in 41 minutes. It was already charged 100%, directions were super easy to read. I also took a little bit of time to watch the online videos. To jump start the Jeep, I plugged the terminals into the charger and red and green lights began flashing. I connected the clamps to the correct terminals. Jumped in that the Jeep started immediately. Instructions said to disconnect the charger within 30 seconds after starting, which I did. I am very happy to be able to easily jump my battery without having to drag out the heavy charger or wait for my husband to get home to do it for me. Also, I absolutely like that this charger is portable so I can take it with me and not have to worry about being stranded with a dead battery. Also, thank you Amazon and the super fast delivery driver for delivering it so quickly. This convenience is outstanding and well worth the money, especially in my circumstance.