Professional-Grade 7000A Peak Car Battery Jump Starter (All Gas/10L Diesel) 5000A CCA Portable Car Jump Starter Battery Pack, 12V Safe Jump Box Jumper Starter with Extended Jumper Cables, DC, Lights

This charger is powerful enough to jump start most engines yet is compact enough to be easily stored. It was charged to about 75% when received and fully charging took about an hour with a 35W adapter.I have not had a need to jump start anything, but did use a USB port to charge a device and it works as expected.Along with the jump starter, the kit includes a case, jumper cable, USB A to USB C cable, a cigarette lighter adapter (which uses the same connector as the jumper cable) and a manual with instructions in many different languages.The case includes a cloth divider to protect the jump starter when closed. It would be nice to have basic instructions printed on this divider for ease of use.Pros:Battery capacity - should be able to jump a wide range of enginesCompact sizeIncluded caseCons: plugging/unplugging the supplied jumper cable or cigarette ligher adapter takes a lot of effort. The connector requires a lot of force to insert and remove.Both USB-A ports also require more effort than normal, but they do work fine.When the jumper cable is plugged in, the LED flashed alternating red/green. This seems odd to me as I would think its showing an error. Based on the supplied manual, this is normal. Seems odd though. I would expect a solid green when ready and solid red if it needs to charge and flashing red if there is an error.Note: After buying this for over $110, the priced dropped to $70 and has a 50% coupon. For $35, this is a great option that I would recommend.

Short story: this is a great little time saver that works like a charm.For some background, I have a truck that I frequently need to jump-start as the battery sits too long without use. Typically, this requires connecting the jumper cables to another vehicle and letting it sit for a few minutes to charge up before I turn it over. Even after a couple of minutes, it would still crank rather slowly. Growing tired of dragging out the cables, I thought I'd try a portable unit, but I wanted something small enough to fit under the seat. After some research, I purchased this unit from BuTure and I've been very happy with it. After charging the unit, the next time I needed to jump-start that truck I connected the charger, turned the key, and it started right up. No waiting, no slow cranking, it just worked. I've used it two more times since then and the unit still shows 90% charge remaining. It's been such a time-saver (and hassle-saver) that it's gained one of the few 5-star ratings I've ever given.

I am very satisfied with the quality & performance of this jump starter. I've used it a number of times and it has worked well every time. This is so much easier than having to jump between 2 vehicles. I keep it in my vehicle so I'm ready to help others is needed. I liked it so much I decided to buy another one but a different brand that was cheaper. This other one could not start the vehicle. I tried the BUTURE 5000A and the car started right up. I decided to return the other brand & purchased another BUTURE 5000A. Both have never failed and they keep their charge for long periods.

Purchased this for a car starter and for the 12v cigarette adapter. It works well and the attachments are easy to use. I also like the USB plug in for charging phones etc.

Seems well built I haven't tried it after it has sat in my car at zero for a few days but they day it will.It started my 42 hp diesel tractor after it sat in the cold for a month.

nice item and strong case

I like this starter,charger, bank device a lot. I didn’t expect it to really start my car after sitting for months without a charge to this device. One morning I heard the click click of a weak battery. I calmly pulled this out of the hatch, connected it and the car started right up. Wow!Ilikehiw it comes with its own case, it’s compact and fits easily by my spare tire/donut of a tire. It’s versatile too. With the usb ports I can also use it as a portable charger for electronics during a power outage. Well worth the money in my book.I like it so much, I got one for every car. Just in case right?

A simple, compact, well packaged unit.The fully charged voltage of 16.8V tells me this is four cell lithium-ion construction - good for jumping a weak starting battery. Some jumper packs use 3 cells for ~ 12.8V.Please note – when using the supplied cigarette lighter attachment, some inverters and other accessories will not function with the higher voltage. I used an adjustable dc-dc step down buck converter to reduce the voltage down to 12.5V so it would work with my sensitive inverter.https://www.amazon.com/DROK-Adjustable-Converter-Transformer-Protective/dp/B07JZ2GQJF?crid=QY42TCC7QQ1S&dib=eyJ2IjoiMSJ9.tMVmVW5QJbEBLOhIj0dBfNkmo2pJsMjMSw1tJJW9ebxR6cr2BAXwLH015OY5s-l9bZSpB-Jb9_SwcCLnq1WLWYJ5PaNAAtRLqlIGdyWcXlzNRt7493QDJs0eyN8oh1KpWTftf-rztTIzchXT0-f2NL-9ggbZG84eyCU5OpeA0S0yssJ5-Nj3t6ZWtWaqWfcXaw4-9t1byo1_tv7A0qGxtBg-l9m-csDqJFw1A6wciYk.5lvfD7ulkixly8QpE5BHYUfjUSa6KAaMmjFMhScbxDQ&dib_tag=se&keywords=dc%2Bto%2Bdc%2Bstep%2Bdown%2Bbuck%2Bconverter&qid=1736984457&sprefix=dc%2Bto%2Bdc%2Bstep%2Bdown%2Bbuck%2Bconverter%2Caps%2C194&sr=8-3&th=1I have not needed to jump my truck yet, so can not comment on that function.The LED state of charge meter is a nice feature.