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STANLEY

Stanley J7CS 700 Peak Amp Automotive Jump Starter, Portable Power – Triple 15W USB Ports, 120 PSI Air Compressor

  • Based on 10,031 reviews
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$70.20 Why this price?
4th of July Sale · 22% off was $89.99

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Availability: 12 left in stock
Fulfilled by Amazon
Arrives Monday, Jul 7
Order within 15 hours and 47 minutes
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Pattern Name: Jump Starter


Features

  • JUMP STARTER POWER - 700 peak amps and 350 instant starting amps.Fit Type: Universal
  • SAFE JUMPER - Reverse polarity alarm alerts when there is an improper connection; Connect the clamps to the battery, turn on the switch and start your vehicle
  • AIR COMPRESSOR - Features a 120 PSI air compressor to help inflate tires, sports equipment and bike/scooter tires
  • Three 15W/3.1A USB ports for charging devices
  • Compressor features a new 10 minute Auto Shut Off timer to avoid damage from heat, should the compressor be left ON unintentionally or unattended

Description

With the STANLEY FATMAX J7CS jump starter and power station, you no longer need to dread roadside emergencies when your vehicle won’t start. This compact, portable device delivers jump-starting power with 700 peak amps and 350 instant starting amps. That’s enough power to jump-start your car, truck, SUV, motorcycle, boat, RV, ATV, or tractor; all without the need to use another vehicle for assistance. Simply connect the clamps to the battery, turn on the switch and start your vehicle. The reverse polarity alarm will alert you when there is an improper connection. A high-powered LED light rotates 270 degrees to help you work in the dark. This jump starter is equipped with a 120 PSI air compressor to help inflate tires, sport equipment, or other items with low pressure. The built-in triple USB port comes in handy to charge your phone and electronic devices. It features an integrated charging cube (a 120V charging adapter) that allows the STANLEY FATMAX J7CS jump starter to be charged using a standard extension cord, so you don't need to keep track of a separate specific charging cable. Extension cord sold separately. For optimal performance, the unit should be charged every 30 days when not in use. Once used, the unit should be charged immediately overnight.

Brand: STANLEY


Product Dimensions: 10.5"D x 6.7"W x 11"H


Amperage: 700 Amps


Peak Output Current: 700 Amps


Manufacturer: Baccus Global LLC


Brand: ‎STANLEY


Product Dimensions: ‎10.5"D x 6.7"W x 11"H


Amperage: ‎700 Amps


Peak Output Current: ‎700 Amps


Manufacturer: ‎Baccus Global LLC


UPC: ‎814632011972


Global Trade Identification Number: ‎72


Model: ‎J7CS


Item Weight: ‎9.58 pounds


Country of Origin: ‎China


Item model number: ‎J7CS


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎J7CS


Special Features: ‎Portable


Date First Available: January 23, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 7

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.

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Learn more about financing & leasing here.

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Top Amazon Reviews

    • perfect
Perfect
Reviewed in the United States on June 19, 2025 by douglas a kroetz
    • Useful product.
Such a useful machine and good for flat tires and starting a car.
Reviewed in the United States on June 2, 2025 by MagnetRandus
    • Stuck on the side of the road
Worthless, I got a chance to air up a tire twice, but when I needed to jump starter my car, it did nothing as a matter of fact the battery indicator showed fully charged but when I hooked the battery cables to the car it went dead. So I plugged it in the wall to charge it back up and lol it stays on red for 2 hours once it turn green I unplug it turn it on and NOTHING.... I purchased it october 2024 and today is June 16, 2025.....I wish I could returned this piece of crap!!!!! ... show more
Reviewed in the United States on June 17, 2025 by alicia Hines
    • This is an owner's detailed review of this product
once again I am revising my review of this product, but upward 2 stars this time after having used it awhile The first thing that impresses me with it is that I have abused it and it is only working better. I've run it completely down at least twice, which is bad for it and I wasn't charging it every time I used it like the instructions say, to do , which is bad for it. and the last time I ran it completely dead, was leaving the air compressor pumping my tire all night, which burned out the compressor as well as drove the battery completely down (lol but my tire was properly inflated in the morning). But the jumper part is still charging and working better than every. Also I'd wasn't following the instructions which say to connect the positive to the positive battery post and the negative to a chassis ground. instead, I always connected the negative cable to the negative post of the battery and it would barely kick my starter over. but today under the same conditions, I connected it to a chassis ground and it started quick and well, My previous negative review, which I am replacing now, was partially based on my improper use and abuse of this product. But i am leaving these parts of the old review because they are valid: .ALL the information about yhis product's power capabilities on Amazon and on the front in the picture are A BALDFACED LIE, according to the finely printed specs on the back of it which say "350 amps instantaneous" and "225 Amps continuous for 5 seconds", which means the "700 amp" claim is totally without merit and the "350" dubious because it cannot be used to start a car. I just WISH AMAZON WOULD REQUIRE it's sellers to PROVIDE TRUTHFUL, USEFUL specs. The product info Amazon provides usually HAS NOTHING TO DO WITH THE PERFORMANCE OF THE PRODUCT, which is definitely NOT " the most consumer-centric" LIGHT: IT IS ABSOLUTELY WORTHLESS:Trying to use it too hook up the jumper cables I would up having to get a flashlight. The problem with the light is that #1, it's not bright at all and it's not wide either. I have once watch battery cell keychain led lights that are brighter. And trying to aim the light on what you are doing while using this for, say airing up a tire or jumping your battery, is next to impossible because the beam is so tiny and weak. keep this product charged up to full or it won't start your car when battery is very low, probably won't even start car unless battery is only slightly low. It's good for starting lawn mores motorcycles and other small electric start 12 volt engines.. good cordless portable for inflating tires. Using USB ports run this product down surprisingly fast. inexplicably has covered other weather covered ports, but USB ports are not covered. battery power display leaves a lot to be desired.but then this is very inexpensive and worth the money. Just don't expect it perform like the amp rating suggest it should, because it doesn't seem to. Starting a car with a slightly run down battery with this is hit and miss. If it was truly 300 amps, that is PLENTY of power to add to a run down battery and jump a car, so this must not be 300 amps like i believe that a unit that actually puts our as much as this one claims would cost about $200. But It is very convenient for inflating stuff and quick portable power and it only cost me $40. But if you want unbridled reliable power, pass this up and get another product, another brand, that is much bigger and heavier, as much as like a car battery, such as a Snap-On or Mac and pay $200 or more for it. ... show more
Reviewed in the United States on October 6, 2017 by eotrbuR
    • Very reliable
I've had this jump starter for over a year now & it's still working great! I've used it on vehicles & my riding commercial lawnower. It cranks the machine & can also air up all 4 tires within 15 minutes on a single charge of the jump starter itself. It's very light weight & simple to operate. Easy to recharge. Just plug it into a regular house plug for a few hours after each use. Also it's also a good idea to recharge it about once a month , whether you use it or not, to keep it in good working order. ... show more
Reviewed in the United States on January 15, 2025 by Amazon Customer from South Georgia
    • life saver
I love this jump starter pack, I originally bought it because 2 of my car tires had slow leaks on them and paying for air every other day was getting old, so I got this, and I was NOT disappointed. it's pretty fast filling air up even though the air compressor in it is not very big but it gets the job done. it also has 3 usb ports so you can charge anything with a usb charger cord. the jump starter is very easy to use, just hook up the to the correct terminals and turn it on then wait a min or 2 and the car your jumping should turn right on. very easy to use and doesn't weight to much and has a charge cord to charge it. I've had this for about 2 yrs. now and it's working great still. ... show more
Reviewed in the United States on October 9, 2024 by David Uribe
    • Batteries are too prone to fail on these models
Attempted to charge upon arriving and would not take charge it always stayed at two red l.e.d's never the green which means it never fully charged no matter how long I left it charging,so i returned it now I'm waiting for my refund from Amazon.
Reviewed in the United States on May 7, 2025 by Samunoz
    • YES! This thing has already paid for itself. Save yourself a lot of hassle and get one.
I went with this product over the more compact versions of jump starters out there because I felt this would more-reliably provide the amperage needed to start my vehicle. I can't make a comparison to those mini-jump starters because I don't have one, but this is a great product regardless. I had a battery that was slowly dying and I ended up having to use this a lot in the period of one month before I had the time to get the battery replaced. The Stanley J7CS worked WAY better than expected. Not only did I get a clean jump the first time, but I was actually able to jump my Honda Odyssey FIVE times before I needed to recharge. I knew I was pushing the limits, but just in case my van didn't start after work, I had a co-worker in my office who also has one of these just in case I reached the limit. FIVE jumps with no recharge is impressive, but if you could be stranded, I probably wouldn't push it that much. Just know that it is certainly capable of this. Other times, I was able to jump FOUR times with no recharge. In addition to it's primary function as a Jump Starter, it also has an air pump and a flashlight (so you can see what the heck you are doing in the dark). I've used the air pump for a tire that was low. It worked great. Wasn't quite as fast as a high-end air pump at a gas station, but it got the job done pretty quickly. In fairness, I will also say that I go to a gas station where their pump is actually slower than this one. But I admit, speed is not a concern when you are faced with driving on a flat, changing to a spare or filling your tire (easy!) Overall, I would say that in the few months I have owned this unit, it has more than paid for itself. My vehicle is at that age where you never know what to expect, so for what I paid for this, I am VERY pleased. It has saved my butt more than once. Great product - would recommend to anyone with even the smallest space in their trunk. Totally worth it. ... show more
Reviewed in the United States on December 3, 2015 by Sixtyeightthousandth

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