--- product_id: 1407686 title: "STANLEY J5C09 1000 Peak Amp Automotive Jump Starter, Portable Power – 2.1A/10W USB Port, 12V Outlet, 120 PSI Air Compressor for Tires, Bikes & Sports Equipment" brand: "stanley" price: "1025477 ₮" currency: MNT in_stock: true reviews_count: 8 category: "Stanley" url: https://mongolia.desertcart.com/products/1407686-stanley-j5c09-1000-peak-amp-automotive-jump-starter-portable-power store_origin: MN region: Mongolia --- # 1000 peak amps jump-start power 12V DC + USB ports for device charging 120 PSI built-in air compressor STANLEY J5C09 1000 Peak Amp Automotive Jump Starter, Portable Power – 2.1A/10W USB Port, 12V Outlet, 120 PSI Air Compressor for Tires, Bikes & Sports Equipment **Brand:** stanley **Price:** 1025477 ₮ **Availability:** ✅ In Stock ## Summary > ⚡ Power up your peace of mind—jump, inflate, and charge like a pro! ## Quick Answers - **What is this?** STANLEY J5C09 1000 Peak Amp Automotive Jump Starter, Portable Power – 2.1A/10W USB Port, 12V Outlet, 120 PSI Air Compressor for Tires, Bikes & Sports Equipment by stanley - **How much does it cost?** 1025477 ₮ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [mongolia.desertcart.com](https://mongolia.desertcart.com/products/1407686-stanley-j5c09-1000-peak-amp-automotive-jump-starter-portable-power) ## Best For - stanley enthusiasts ## Why This Product - Trusted stanley brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Inflate on the Go:** Integrated 120 PSI air compressor keeps your tires perfectly pumped, from zero-turn mowers to everyday vehicles—never get stranded with low air pressure again. - • **Smart Safety Alerts:** Reverse polarity alarm prevents costly mistakes by alerting you instantly if clamps are connected incorrectly—jump with confidence every time. - • **Versatile Portable Power:** Built-in 12V DC outlet and USB port keep your essential devices charged during emergencies or outdoor adventures—stay connected wherever you are. - • **Powerful Jump-Start Anytime:** 1000 peak amps and 500 instant amps deliver reliable starts for cars, trucks, SUVs, motorcycles, and more—no second vehicle needed. - • **Compact & Ready When You Are:** Compact design with a 270° rotating LED light ensures you can work in the dark, while easy household charging means it’s always ready for your next emergency. ## Overview The STANLEY J5C09 is a compact, all-in-one jump starter and power station delivering 1000 peak amps and 500 instant amps to jump-start a wide range of vehicles. It features a 120 PSI built-in air compressor for tire inflation, a 270° rotating high-powered LED light for nighttime use, and integrated 12V DC and USB ports for charging electronic devices. Safety is enhanced with a reverse polarity alarm. Designed for convenience, it charges via a standard household extension cord and includes a 1-year limited warranty, making it an essential tool for roadside emergencies and outdoor power needs. ## Description With the STANLEY J5C09 jump starter and power station, you no longer need to dread roadside emergencies when your vehicle won't start. This compact, portable device delivers serious jump-starting power with 1000 peak amps and 500 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 with low pressure. The built-in 12V DC outlet and USB port come in handy to charge your phone and electronic devices. It features an integrated charging cube (a 120V charging adapter) that allows the STANLEY J5C09 jump starter to be charged using a standard household 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. Includes a limited 1 year manufacturer warranty. Review: Great, Must Have For The Road Warrior - This is an amazing invention. I bought this when my battery started to go out. Luckily, I was able to replace it pretty quick, but I ordered it in the morning for same day delivery and had it within a few hours. The next morning, my battery needed to be charged and it gave me a chance to test this jump starter to see if it was worth the cost. I have a Ford Explorer (insert Ford jokes here) and it's a bit of a beast to charge and jump but this worked out of the box to jump it. I had to use it twice more that day because the battery wasn't holding a charge and it worked perfectly to get me going without the embarrassment of being stranded. Additionally, what makes this a 5 star product is all the extras. There is a compressor built in it that I have not tested on my SUV tires thankfully, but I have used it for all my kids bikes and it works great. It shows the pressure and aired them up quickly. The small flashlight came in handy when I was jumping the car at night and didn't have another flashlight. Even if I did, I prefer this one since it's attached to the device and I could shine it without holding it in my hand. Somehow, they just said "who cares" and added in a USB charger so I have a massive battery pack as well that I can charge anything from small handheld electronics like phones to laptops and car vacuums. It's amazing. Finally, here are some features that I love that are just icing on the cake. It's very compact which allows me to keep it stowed in the back of my SUV easily. The handle on the top seems sturdy and it feels like a metal construction. The fact that all the tubes and cables wind up onto the device make it very convenient. The tester that tells you how much juice you have is great to keep it topped up as needed. I feel safer having it with me in the car knowing that it can help take care of me in a pinch. Review: One of my best purchases in a long time! - I purchased this originally to use with my landscape business JumpStart zero turn and walk behind mowers. Since then I found that I use it for just about everything under the sun. It has plenty enough juice to jumpstart a jeep that I've been working on as a project five or six times before it needs to be charged. With my zero turn and walk behind mowers I can jump start them a dozen times easy. Surprisingly enough the built-in air compressor works pretty well. For small tires like zero turn mowers, wheelbarrows, bicycles, dirt bikes and so on the compressor works great. I've even used it to top off the air pressure in my Mazda RX-8 that requires 50 psi cold anything below 40 and the light comes on on the inside saying low air pressure. Now what I try to inflate a 33" mud terrain tire, no but for everything else including slip and slides it works great. The built-in USB ports are nice to have but I've never really used them. Even though it would be nice if the battery charge lights had two or three more in total would be nice to give you a better overall idea of how much charge is available. I will say one thing that I despise about this product the stupid flashlight! For one it's not that bright and number two is its location. The way they have it situated the button that turns it on is on the underside right where you wrap the cord so if you're not careful you can accidentally turn the light on and if this happens during the daytime you'll have no idea that a flashlight has been activated until you go to use it the next time and the battery is completely dead because said flashlight remained on until it killed the battery. I purchased this in April of 2020 and it's now 5-28-22 so just over two years of use and I would say that I've used it easily 60 times and it's never let me down. As I mentioned before I jump-started things as small as lawn mowers but I've also used it to jumpstart Jeeps, Mazda RX8, Ford F-150. If you've been on the fence about buying a jump box and being concerned whether or not it's worthwhile investment believe me when I say the Stanley box is freaking awesome. If you go to my desertcart profile and read some of my other reviews you'll know that this review is sincere because if I find anything wrong with a product I have no problems with pointing it out. Also know that my last jump box I purchase from Harbor Freight and while it was supposed to be about the same amps is this Stanley the CCA was way lower and I would be lucky if I can jump-start two or three zero turn mowers and never even tried using it to jumpstart a vehicle because I knew it wouldn't have the juice I just figured I'd save the time and get out the jumper cables. Someone stealing the Harbor Freight version out of back of my truck was probably the best thing to happen to me when it comes to portable air compressors and having a decent air pump it's just a nice bonus. My only other advice would be to snap the flashlight off and cut and cap the wires otherwise you will find yourself with a dead jump box because the stupid flashlight was accidentally turned on during the day when you cut a notice. ## Features - Delivers serious jump-starting power with 1000 peak amps and 500 instant starting amps - Reverse polarity alarm alerts when there is an improper connection; Connect the clamps to the battery, turn on the switch and start your vehicle. All Metal Powder Coated Clamps - Features a 120 PSI air compressor to help inflate tires with low pressure; High-powered LED light rotates 270 degrees to help you work in the dark - Built-in 12V DC outlet and USB port provide portable power for electronic devices; Includes a limited 1 year manufacturer warranty - Jump starter should be charged every 30 days when not in use; Charges using a standard household extension cord (sold separately) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002X6VXL4 | | Amperage | 1000.0 | | Automotive Fit Type | Universal Fit | | Battery Capacity | 19 Amp Hours | | Battery Cell Composition | Lead Acid | | Battery Type | Lead Acid | | Best Sellers Rank | #3,678 in Automotive ( See Top 100 in Automotive ) #50 in Jump Starters | | Brand | STANLEY | | Brand Name | STANLEY | | Compatible with Vehicle Type | Passenger Car | | Customer Reviews | 4.3 out of 5 stars 16,673 Reviews | | EU Spare Part Availability Duration | 5 Years | | Global Trade Identification Number | 00897450002476 | | Included Components | Jump Starter | | Item Dimensions D x W x H | 11"D x 7.5"W x 13"H | | Item Type Name | Jump Starter | | Item Weight | 17.2 Pounds | | Manufacturer | STANLEY | | Manufacturer Part Number | J5C09 | | Manufacturer Warranty Description | 1 Year Warranty | | Model Number | J5C09 | | Peak Output Current | 1000 Amps | | Product Dimensions | 11"D x 7.5"W x 13"H | | Specification Met | UL | | UPC | 897450002476 | | Unit Count | 1.0 Count | | Vehicle Service Type | Passenger Car | | Voltage | 12 Volts | ## Product Details - **Battery Cell Composition:** Lead Acid - **Brand:** STANLEY - **Product Dimensions:** 11"D x 7.5"W x 13"H - **Vehicle Service Type:** Passenger Car - **Voltage:** 12 Volts ## Images ![STANLEY J5C09 1000 Peak Amp Automotive Jump Starter, Portable Power – 2.1A/10W USB Port, 12V Outlet, 120 PSI Air Compressor for Tires, Bikes & Sports Equipment - Image 1](https://m.media-amazon.com/images/I/81BSeorduJL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: i have dodge ram 3500 maxi van with 5.9L engine. would this jump start my van?** A: People read things on the internet, and then regurgitate them while feigning experience. I have a 392 Challenger. That's as big and bold as a Dodge engine gets. It is the engine that is a supercharger away from being able to stay with a Hellcat. To use your metric numbers, it is a 6.4 Hemi. And the 700 peak amp stanley jump box jumps it just fine. You do not even need 1000, as some of these people are trying to lead you to believe. Go down one, pick up the 700 and save yourself 20 bones. That's the fact in the real world. **Q: What is the maximum invertor can I use?** A: For a battery of this size, I'd not go over 240 watt inverter. Actually, you can use any inverter (I got a 400 watt unit that came with a lighter plug as well as other wires), but I'd not connect up a load greater than that ~240 watts. I have at least 2 reasons. First, the lighter outlet that you'll likely want to use is for sure intended for under 20 amps (and maybe fused for only 10 amps). Secondly, the battery is likely rated "18 amp-hour" hinting it can give you 18 amps for 1 hour, or 9 amps for 2 hours, etc. For something needing just 1 amp at 120V the inverter will pull 10 amps at 12V from the battery making it last under 2 hours (or under 1 hour for 2 amps at 120V). I recommend against pulling power faster than it's rating (~20 amps) since I've seen statements in manuals like "Don't crank a car for even 5 seconds because the battery will overheat internally" and I think you're pushing your luck to expect more than that continuously. **Q: Is there a Automatic Float Charging System?** A: I dont have this one, but I do have the last version, and after taking mine apart, here is what I can say. While there are lights on the front that tell you when the battery is full, I have found not proof or evidence of any float in it to keep it from over charging. My opinion, while it should not hurt much to leave it is for a short period of time after it is fully charged, I would keep somewhat in mind to make sure that it is not left charging for extended lengths of time. Doing so can damage the battery in it. If you do damage the battery in it, replacement batteries can be bought and installed for around half the price of one of these. I just replaced the battery in mine, and for mine, I found some cheap, made in china ones for about $30. I found one that was made in the USA for just a few dollars more. All that there is to replacing the battery is to take the screws out that hold the front and back together, which should be around 8 screws, the two pieces should come apart, and the battery should be right there. The battery will be attached to the wires by a nut and bolt on each terminal. That is it. and just in case you are wondering, the battery in mine was a 19ah, 12v battery.. but the 18ah ones are easier to find. The size of mine is about 6.5" x 7" x 3", or something like that. and mine is the same overall type/design/rating as this one. Just without the USB ports. but you would have to verify that they still use the same battery if you do choose to replace yours in the future.Also, as to the charging thing. Some people say to charge it once a month. Personally, i feel that is a bit much. I say to charge it when it is getting a bit low. Why do I say this.. because these types of batteries do not really loose much power over time, if not being used. Even the manufacturers of the batteries for these say that you only need to top the battery off, once every 6 to 12 months, if the battery is just sitting on the shelf. So I see no reason why, if you are not using the jumper at all, why you would need to charge it every month. If the battery is at, say 90%, then it is still fine to leave alone (unless you know you are going to need it very soon, and quite a few times at that), but if it gets to maybe 75%, I say charge it to top it off. Dont forget, since the batteries in these are the same type as what is in a car, you just don't want to let it get too low. If you do let it get too low, that can ruin the battery, just like how it will in a car. **Q: Is it safe to keep in the car in the extreme heat?** A: i have had no problems leaving in a glass box - car with windows all the way up. think it may drain the internal battery a touch but nothing serious. instead of having 5 day charge, you may have 4 days 22 hours or so <--example. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great, Must Have For The Road Warrior *by T***Y on December 11, 2017* This is an amazing invention. I bought this when my battery started to go out. Luckily, I was able to replace it pretty quick, but I ordered it in the morning for same day delivery and had it within a few hours. The next morning, my battery needed to be charged and it gave me a chance to test this jump starter to see if it was worth the cost. I have a Ford Explorer (insert Ford jokes here) and it's a bit of a beast to charge and jump but this worked out of the box to jump it. I had to use it twice more that day because the battery wasn't holding a charge and it worked perfectly to get me going without the embarrassment of being stranded. Additionally, what makes this a 5 star product is all the extras. There is a compressor built in it that I have not tested on my SUV tires thankfully, but I have used it for all my kids bikes and it works great. It shows the pressure and aired them up quickly. The small flashlight came in handy when I was jumping the car at night and didn't have another flashlight. Even if I did, I prefer this one since it's attached to the device and I could shine it without holding it in my hand. Somehow, they just said "who cares" and added in a USB charger so I have a massive battery pack as well that I can charge anything from small handheld electronics like phones to laptops and car vacuums. It's amazing. Finally, here are some features that I love that are just icing on the cake. It's very compact which allows me to keep it stowed in the back of my SUV easily. The handle on the top seems sturdy and it feels like a metal construction. The fact that all the tubes and cables wind up onto the device make it very convenient. The tester that tells you how much juice you have is great to keep it topped up as needed. I feel safer having it with me in the car knowing that it can help take care of me in a pinch. ### ⭐⭐⭐⭐⭐ One of my best purchases in a long time! *by R***1 on May 28, 2022* I purchased this originally to use with my landscape business JumpStart zero turn and walk behind mowers. Since then I found that I use it for just about everything under the sun. It has plenty enough juice to jumpstart a jeep that I've been working on as a project five or six times before it needs to be charged. With my zero turn and walk behind mowers I can jump start them a dozen times easy. Surprisingly enough the built-in air compressor works pretty well. For small tires like zero turn mowers, wheelbarrows, bicycles, dirt bikes and so on the compressor works great. I've even used it to top off the air pressure in my Mazda RX-8 that requires 50 psi cold anything below 40 and the light comes on on the inside saying low air pressure. Now what I try to inflate a 33" mud terrain tire, no but for everything else including slip and slides it works great. The built-in USB ports are nice to have but I've never really used them. Even though it would be nice if the battery charge lights had two or three more in total would be nice to give you a better overall idea of how much charge is available. I will say one thing that I despise about this product the stupid flashlight! For one it's not that bright and number two is its location. The way they have it situated the button that turns it on is on the underside right where you wrap the cord so if you're not careful you can accidentally turn the light on and if this happens during the daytime you'll have no idea that a flashlight has been activated until you go to use it the next time and the battery is completely dead because said flashlight remained on until it killed the battery. I purchased this in April of 2020 and it's now 5-28-22 so just over two years of use and I would say that I've used it easily 60 times and it's never let me down. As I mentioned before I jump-started things as small as lawn mowers but I've also used it to jumpstart Jeeps, Mazda RX8, Ford F-150. If you've been on the fence about buying a jump box and being concerned whether or not it's worthwhile investment believe me when I say the Stanley box is freaking awesome. If you go to my Amazon profile and read some of my other reviews you'll know that this review is sincere because if I find anything wrong with a product I have no problems with pointing it out. Also know that my last jump box I purchase from Harbor Freight and while it was supposed to be about the same amps is this Stanley the CCA was way lower and I would be lucky if I can jump-start two or three zero turn mowers and never even tried using it to jumpstart a vehicle because I knew it wouldn't have the juice I just figured I'd save the time and get out the jumper cables. Someone stealing the Harbor Freight version out of back of my truck was probably the best thing to happen to me when it comes to portable air compressors and having a decent air pump it's just a nice bonus. My only other advice would be to snap the flashlight off and cut and cap the wires otherwise you will find yourself with a dead jump box because the stupid flashlight was accidentally turned on during the day when you cut a notice. ### ⭐⭐⭐⭐⭐ Review of the LifeSaverTron1000 *by J***E on February 4, 2015* This jumpstarter is absolutely amazing. I mean it. My car has had it's battery die on many occasions, due to a variety of circumstances. I have never had a problem with it in it's extensive use. Trust me, this thing takes a lot of abuse from me. It sits in my trunk 100% of the time, unsecured, in freezing cold temperatures, bounces around, and gets very frequent use (anywhere from daily use to once or twice a month). I bought it on November 6th 2014, and at the time of writing it is Febuary 2nd 2015. I haven't had it for long, but I have definitely used it more than anyone should have to use one of these. And it still works just fine. The cables and alligator clips seem very sturdy, as well as the materials used for the casing, handle, and various switches. It is very reliable. I would wager that it is more reliable than my car's actual, brand new (November 2014) battery. Now that we have it's sturdiness aside, I'm going to talk about it's performance as a jump-starter. Yes, it does come with some fancy frills, but let's be honest. None of those matter if it doesn't do it's intended job. However, that's not an issue at all, because it DOES do it's job, and it does it very well. My car is a 1988 Mazda RX-7. These have a lot of electrical problems, due to Mazda's poor soldering and 27 years of corrosion on the grounding points. My battery will every once in a while drain for some unknown cause, it leaves a circuit closed after turning it off or something. Even when the battery is 100% dead like this, this jumpstarter can crank out enough power to turn it on. If you try to turn the car on very quickly after connecting it (less than 10 seconds), it might not turn the motor over very quickly. However, if you wait just a few seconds, it cranks it over just as well as a fully charged battery. Basically, when the battery is 100% dead, it takes a couple seconds to build up some juice. Which is fine. Another thing, my car has a strange engine that is drastically different from any other car's engine (it has a rotary engine). These take a LOT of power to crank over. This jumpstarter is more than capable of turning it over. In the winter, it is a common phenomenon that the rotary engines have trouble starting even with their own factory battery, fully charged. They thick oil they use compounded with the high power necessary to start them renders them sometimes useless in the cold. In the winter, if the car doesn't want to start, I just pull this out, connect it, and it'll start faster than ever. It gives a significant boost to the battery, and lets the car start much faster than usual in conditions when it would normally not even start at all. Next, let's talk about charging, battery life, etc. It does not take long to charge at all. There are two ways to charge it, you can use a 12V DC "cigarette lighter" plug (included) and charge it in the car, and it also has an AC plug that you attach an extension cord (not included) to charge from a wall socket. I haven't used the car plug, I have only used an extension cord. It usually has a "green light" in a few hours or less. Granted, I have never fully drained it, I've come down to the first LED out of the 3 that indicate the charge level). This leads into another great thing about it. It can take a lot of use before it needs to be charged. I have had it for 3 months now, and I have charged it about 3 times. This may seem like a lot, but remember, I use it very, very frequently. I haven't actually counted how many times I can use it before I have to charge it. However, when it's very cold out, I use it almost every time I start the car. This shouldn't count as a "full jump" though, because my car battery is actually fully charged. I'd count it as a "partial jump" because it IS using power from the jump starter. It gives enough "extra power" to get the motor started. Doing this, I have never actually had the indicator drop below the green "fully charged" level (or whichever it was currently at). As for completely dead jumps, I tend to mix those in with the "partial jumps". I can't give exclusive data on that, because as is the case with jump starting, it occurs unexpectedly. However, I can definitely perform multiple completely dead jumps on a single charge. Sometimes a full jump won't even take it below the "fully charged" green LED indicator. Sometimes, it will drop down to the 2/3 level. If I had to take a guess, I'd say the jump starter would be able to jump my car (with a completely dead battery) reliably 3-5 times in a row before it can't do it anymore. Maybe even a bit more, if the car battery is not 100% dead, but doesn't have enough juice to either start the car or even turn it over. I have also used it extensively to turn the motor over without the goal of starting the car. Sometimes my car has problems that require turning the engine over without actually starting the car. If you're familiar with cars, I have to take out the spark plugs or fuel pump fuse and crank the engine over. When doing this, if I turn the key, the engine just makes the "brrrbrrrbrrrbrrr" noise but never starts. This kills my car's battery, so I hook up the jump starter once it's dead. Again, I have not collected any hard data, but I do have a general idea of the jump starter's capabilities through frequent use. If I had to give a figure, I would say that the jump starter (from a full charge) can turn the engine over all on its own for a total time of about a minute to a minute and a half before it gets to the first of three charge indicator lights. That is a minute and a half of constant "brrrbrrrbrrrbrrrbrrrbrrrbrrrbrrr". To those who know that doing that for such a long time is bad, this is not all at once, it is spaced out over the period I'm working on the car. In summary, you barely have to charge this thing. It can easily take a couple jump starts before you even have to THINK about charging it. I'm gonna recommend that you keep it fully charged, and charge it after every use. It is definitely unnecessary, but I'm gonna say it just for the sake of saying it. I don't want anybody to get mad because "this guy online told me it would last exactly 4 jump starts! Now it's not working and he's an idiot and I'm stranded!". And it puts out a very generous amount of power as well. Now, the fun little features that it has! It has a USB port that you can use for charging phones, electronic cigarettes, cameras, or even to power your USB desk back massager. I have never actually used it "for real", but I did test it out, and it works. I don't know how long it would be able to power something like a phone, but if you are stranded somewhere, you will DEFINITELY NOT have to worry about your cell phone dying. If it can jump a car multiple times, it can probably power a phone for a very long time. The built-in flashlight works pretty well. You can move it around and stuff, and it can actually really help at night if you need light for something. It's not the best flashlight in the world, because it's attached to a giant battery, but it gets the job done. It's more of an "oh crap I need light" thing than "I'm gonna be out in the garage tonight, I'd better bring the jump starter so I can see!". The charge level indicators are a little weird, but it really isn't a problem. You just press a button, and 1-3 LED's light up to show you how much it has left. I can see how someone would think it's a little inaccurate (you couldn't have put like a couple more lights on at least?), but it gets the job done. You really do not need an exact percentage display of the battery life, and this reduces the cost because it doesn't need an on-board computer to run a display. The last little thing it has is a mini air-compressor for filling your tires. The value of this depends on how you look at it. It is NOT good for filling up your tires. It will take forever. If I'm being honest, you're probably better off going to a gas station and paying a quarter. Even though it's kind of awful, it is still easily my favorite feature of this jump starter. If you happen to notice that a tire is low, you can just fill it up. If you're like me, then it's always in the car with you, and you never have to worry about finding a way to fill your tires. If a tire is leaking air, but is still somewhat drive-able, it will be a lifesaver. You can use this crappy little air compressor to limp your way over to a repair shop (or your house, if you're so inclined). It is a great thing to have in a desperate situation. Now onto the negative things...which there aren't many of. The switch for the air compressor is on the back. Under normal, not reckless use, it is 100% fine and there is nothing wrong with it. However, this thing sits in my trunk literally all the time. It is not fastened down at all, and there isn't really anything else to hold it even remotely in place. As a result, it ends up flying around a lot. Not often, but occasionally, the air compressor switch will flip to the "on" position from a bump, hard turn, panic braking, etc. I would not consider this one a flaw with the product, it is more of a user error. I know I don't take care of it, and it really is a result of my negligence. It is still worth noting though. To avoid this, you have some options. First of all, don't be like that random guy on the internet and let it fly around in your trunk. Second, if you do, place it so that the front (the side with the yellow buttons) is on the bottom. It is much less likely for something to move the switch, because it would have to flip over. If you manage to flip it over AND move the switch while driving like a sane human being, then I honestly think you deserve to have your air compressor switch flipped. Lastly, you could put some tape over the switch or something if you absolutely cannot avoid stowing it recklessly and driving like a maniac. Next issue, the size. For anybody who has a somewhat normal car, this is not really an issue. It may be able to power a car, but it is not the size of a car battery. It is much smaller. However, I have a two-seater convertible that only really has a trunk because it's hard to sell a car without a trunk. It takes up a large portion of my trunk. It is DEFINITELY worth it, but again, it is worth mentioning that with the other various tools I need in there for my ancient car, I pretty much end up with 1/3 of my trunk space available for trunk-stuff. And that's after playing trunk-tetris and getting everything to fit like a puzzle. So be warned, if you have something like a Miata, S2000, or another tiny two seater, space might be an issue if you keep it in the car all the time. If you don't have a hilariously small car, then ignore everything I just said. You may have to take it out if you're planning on hauling a metric crapload of stuff, but othewise it really shouldn't impede you. Basically, the solution to this negative is 1.) you could not keep it in your trunk (I don't suggest this one), or 2.) don't drive a roadster. If you already have a roadster, I'm sorry, but you're just gonna have to sell it. If you can't deal with the 2-seater's now barely-existent trunk, then you have to pick between this jump starter and the car. And you should pick the jump starter. Another negative thing I have is yet another thing that barely even counts as a negative. The flashlight is right above the thing you use to wrap one of the cords around. If you quickly try to wrap it up, you might get the cord caught on the flashlight just a tiny bit. Not really an issue, just something that I would change if I were to design a newer model. One negative thing that I'm seeing on some reviews of this and other jump starters is that the alligator clips break. I may have gotten lucky, or they may have gotten unlucky. Personally, I haven't had an issue with them, and I actually think they are built rather well. But it isn't worth glossing over, because if a lot of people complain about it, there may be some truth to it. Just know that even if some of them are bad, mine is proof that they are definitely not all like that. One final negative I have is the air compressor. It is an awesome thing that they included, and it could really come in handy, but it objectively is a bad thing to use for filling your tires. It is NOT supposed to be very good, after all, if you want a good air compressor, then you shouldn't be buying a battery jump starter. However, it is loud, I could hear it VERY clearly while driving, on the highway, with it in the trunk, that is a completely isolated compartment from the cabin. The first time the switch flipped after a bump, the loud noise actually freaked me out, because I heard this huge vibrating noise that would not stop, and I thought it was coming from the car. It is also pretty low-powered (again, it is attached to a car jump starter that only supplies 12 volts). It takes a long time to fill up air, and it obviously struggles getting the tire pressure up once it gets to (relatively) higher PSI. To summarize, this is an absolutely amazing device. It comes in handy in a lot of desperate situations. It can take tons of regular wear and tear as well as abuse (I would know, I'm not exactly nice to it). It manages to jump start even cars that are pretty difficult to start, and it can do it time and time again without recharging. Still, for safety's sake and just in case, I'd recommend keeping it charged. Just know that it is definitely capable of multiple jumps if 1.) you happen to need it multiple times in a row, and 2.) you don't feel like charging it every time you use it. It has some nice "extra" little features that you probably won't use a lot, but are definitely nice to have on the off chance you do need them. I keep this thing in my car literally all the time. It has not only saved my sorry butt more times than I can count, but it also allows me to use my car without worry in the winter when there's a less than 50% chance my car wouldn't normally work. If you are even THINKING about buying this, stop thinking, and give Stanley your money already. Even if you aren't thinking about it, even if you don't have a car, buy it. ## Frequently Bought Together - STANLEY J5C09 Portable Power Station Jump Starter 1000 Peak Amp Battery Booster, 120 PSI Air Compressor, USB Port, Battery Clamps - C2G Legrand Universal Power Cord, Computer Extension Cord with 18 AWG Power Cord, 6 Foot Computer Power Cable, Black, 1 Count, C2G 03115 - caseling Bag Cover for Stanley J5C09 Battery Jump Starter 1000 Peak/500 Instant Amps / J7CS 700 Peak/350 Instant Amps, 120 PSI Air Compressor --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://mongolia.desertcart.com/products/1407686-stanley-j5c09-1000-peak-amp-automotive-jump-starter-portable-power](https://mongolia.desertcart.com/products/1407686-stanley-j5c09-1000-peak-amp-automotive-jump-starter-portable-power) --- *Product available on Desertcart Mongolia* *Store origin: MN* *Last updated: 2026-05-01*