I needed it once and it worked just fine. For some reason, it wouldn't charge with the charger I had for mobile phones, but in the end it charged with a second one I had

I got it for the Navara pickup before I changed the battery (the battery was 5 years old), every day I was left with a dead battery and fortunately I got it and in the field I had no problem.

(So far) Perfect! I used it 3 times on my own car and once more on someone else's (on completely dead batteries) and it responded perfectly. Now I have to see how long it will last...

Useless after a few months, it didn't charge properly, couldn't start, battery was drained not broken, stay away from this for motorcycles

I have sent the product for replacement 3 times and they have returned the same defective product to me all three times without it working!!..

I have already used it 5 times and it worked perfectly. Don't forget after each time you use it to recharge it even if it shows that it is 100% charged, otherwise it doesn't work.

This is the first time I am getting this kind of product, I don't know exactly the Amperes of the battery. I use it for a 125cc motorcycle. Its battery has died and with this, I gave it life!!! It is an amazing product and definitely value for money, I hope I helped and it works for cars, boats, motorcycles but it is a starter NOT a battery charger, this means that it provides immediate power to the vehicle's battery!

Very convenient and helpful. I used it on my CBF600 motorcycle which, after 2 weeks of inactivity, wouldn't even start and it started on the first try. It gives a perfect boost to the battery and I realized this just by turning the ignition.

Tested in a 1,600 CC car. Once installed correctly, the car started easily!

For 3 months in its case and the battery was at 90%, after starting it dropped to 78%.

The only downside is the short cables that barely reach the battery! 4/5

Perhaps one of the worst and most dangerous products I have seen. I opened it up internally and did some tests. First of all, there is no protection at all, so once it reaches 100%, it continues to draw power from the charger, and if you leave it charging for a long time, it will explode. Also, do not leave the product in a car or another vehicle during the summer, because it will burst, nothing to do with the 65℃ resistance that the manufacturer claims. It charges at 5V-1A (5W), quite slow compared to the 5V-2A (10W) that the manufacturer states. The battery capacity, based on my test, is closer to 10,000mAh, not the 15,000mAh that the manufacturer again claims. Overall, it is a Chinese scam, and I wonder how it passed the EU certification check (CE).

It never worked, neither the first nor the second one they sent me as a replacement. I'm waiting to see if they will send a third one, which I don't want, or if they will refund me so I can get something more reliable. I tried it on a duck and it emptied immediately; from 100% battery, it dropped 3% and shut off.
edit. And the third device they sent me as a replacement had the same problem and was sent back for a refund.

The most useless thing there is, it has been replaced twice and still doesn't work, how is it possible for such products to be on the market?

This specific product is good for its price. As a construction, it looks good. I used it and had no problems at all. This

I opened it, used it once to see if it works, not in a car! I just pressed the button, it worked, I left it for 1 month without using it, not even opening it. When I needed it, I opened it, it wouldn't turn on, maybe it didn't have a battery. I put it to charge, it doesn't work. I plugged it into the car with its own cable, it didn't work. I plugged it into a household outlet, it didn't work. I tried it with 7 different cables, it didn't work. A bad Chinese product, stay away. I then opened the box to see the cables, very poor quality..

After two months of power outage, the moto DAYTONA started perfectly with 99% battery. Remaining power of digital LED display.

It lasted almost 8 starts with a dead battery in a few days without charging and had just dropped to 60%.

Good response in starting a large diesel engine, simple use, quick charging. There are no visible indicators on the screen for the other functions, nor clear instructions on how to perform them, nor instructions on how to use the peripherals that accompany it.

Excellent product. It worked without any problem ten days after purchase. I needed it for starting my Nissan nv200. I used it twice in one week and the car started immediately. The battery wasn't completely dead but it didn't have enough power for starting. Anyway, the jump starter saved me three times, one of which I was in the suburbs of Greece.

Excellent product. I use it in my machine, especially in the winter, and it works very well for me. I use a 1600cc diesel engine that has an excellent quality-price ratio. The Type C charging, the LED screen is very good, better than the D1030.