Portable Car Jump Starter 4000A: 12V Battery Jumper Emergency for 10.0L Gas Diesel Engines, Power Booster Start Boost Charger, Intelligent Protection, USB-A Type-C Ports with mutifuctional Light

Just had a chance to use it for the first time this morning, on someone else's car. It was very simple to connect up and the car with the gutless battery started first time. Very impressed and pleased that I had it. I bought this neat little device to carry around in my EV just in case the 12v battery on that failed (which it never has) and also so that I could jump start other people's cars (I always carried jump leads in the past for this reason, but the EV's 12v battery can't be used with those). I've yet to try starting a car with a completely discharged battery but that seemed like a pretty important feature when I was considering which jump starter to buy. Pros: Simple to use, plenty of power capacity, seems to be solidly built, packs into a tidy little case, has potentially useful additional features (emergency light, powering coolbox, charging phone etc), holds its charge for a very long time when not in use and is very good value for money. Cons: None

Really good bit of kit! Cheap for me in sales but I would pay full price it’s worth it! Fits under my seat, charges in couple hours, seems to last but I don’t need to use it only for emergencies, torch light is handy! All rounder works. Easy to use.

Item arrived with about half a charge, after fully charging it used it on a 1.8L Ford Focus with dead battery. Connected clamps and tried to start engine. For a second it didn't sound it would work but then it fired up. After disconnecting still showed full power. The battery unit does feel plasticy but still seems sturdy. The clamps feel heavy duty with a strong spring action. The carry case is semi hard, not blow moulded but stiffened material. Zip doesn't look the best. Large bottom section for battery with elasticated strap to hold it in place. Zipped netted area in top which holds clamps and other accessories. After single restart, item worked as required. Haven't tried compressor function. Will update as and when it gets used in future

Excellent product. Worked well. Only downside was its a bit fiddly getting it back into its case.

I Have Purchased 3 Other Jump Starters over The Last Month, And had to Return them for A Refund because they Hardly turned the engine over, and Didn't Work ! This Particular One is 100% Brilliant and Started My Car With A Flat Battery Instantly, and used Hardly Any Power ! Proven Quality, And Would Highly Recommend !!

I have a 1.6 petrol Nissan Juke Automatic. Due to health issues, I find myself not driving very much anymore and during the cold snap around Storm Bert (Nov 24), I found my car battery voltage dropped to levels where it couldn't turn the starter motor or do central locking. I've seen a lot of YouTube vids where people use jump packs so I thought, right, maybe that'll work. Blimey, did it work OK. It was miraculous. We needed to use the car so I turned it on, connected the clamps to correct battery terminals, hit start button....boom, started straight away. I could NOT believe how great this is. There is also a "red button" to press if the first technique fails due to the Voltage being 2V, ie very low but I didn't need that function on this occasion. You can also use it as a generic charging brick for phones etc and has a super bright LED torch that strobes/flashes/stays continuous. For the money and the time it saved waiting for breakdown service I HIGHLY recommend this small but mighty bit of kit. NB: getting the clamps and cable into the carrying pouch after use is a pain. I found putting the plug end in first, then the clamps, works a treat. 10/10 from me.

Absolute rubbish. At First I thought that this was a great device - it charged well, it has a lot of functionality (flashlight and USB charging as well as a 12v car socket that you can plug into the jump pack). I fully charged it when I got it and took it out of my car once to top it up after a few months. Recently I had need to actually use it to jump start a car and immediately on plugging it in, the power level started dropping by about 2-3% per second (bear in mind I wasn't even trying to start the car at this point). By the time the key was turned (about 20 seconds after attaching it) the pack was showing about 20%, and this immediately dropped to 0. It didn't even turn the engine once before failing.

I recently got my hands on the Portable Car Battery Jump Starter, and wow, what a lifesaver! This little powerhouse packs a serious punch with 3000A, making it suitable for car engines up to 8.0L, whether gas or diesel. If you’ve ever found yourself stranded with a dead battery, you know how stressful that can be. This jump starter is like having a trusty friend in your trunk, ready to help you out in a pinch. One of the standout features is its ultrasafe design. The jumper clamps are super easy to use, and I felt confident connecting them, knowing that the built-in safety features would prevent any mishaps. There’s nothing worse than trying to jump a car and worrying about sparks flying everywhere! And let’s talk about the LED lights. They’re a game changer, especially during those late-night emergencies. I can’t tell you how comforting it is to have a bright light when you’re working on your car in the dark. It really adds to the peace of mind that comes with this jump starter. But wait, there’s more! It also doubles as a power bank, and if you’re like me, you’re always on the lookout for a quick charge for your devices. The PD65W quick charge capability means I can power up my phone and other gadgets in no time, which is a huge bonus. Overall, I can confidently say that this Portable Car Battery Jump Starter is worth every penny. It’s compact, user-friendly, and truly a must-have for anyone who spends time on the road. Whether you’re commuting, road-tripping, or just running errands, you’ll be glad to have it by your side. Trust me, it’s a purchase you won’t regret!

Love this thing. Used many times.

もしもの時に、 役立つ

we love this it has helped us to start a car a couple of times when lights were left on inside

The power you need, with an excellent case that holds everything, very compact, lightweight and easy to use. Great value for the money. Would recommend it to anyone wanting a road worthy tool in an emergency or just to add air to a car, motorcycle, bike, trailer, or a lawnmower, tire with the auto stop feature. I’ve used all it’s features and so far it’s worked and preformed well.

Perfect if you are looking to extend your battery life or as an emergency kit. Save us more than 4 times on road assistance calls. We changed the battery recently; however, it's always in the car for our trips and to charge our phones during our campaigns.