UTRAI Portable Car Jump Starter,1000A Peak 13800mAh Car Battery Jump Starter Pack JS-Mini （Up to 7.5L Gas and 5.5L Diesel Engine）,12V Auto Battery Booster,Lithium Jump Box with LED Light/USB QC3.0

Purchased this about 5 months ago and have just had the 'opportunity' to actually test it's jump starting capability. Obviously very compact and clearly a great high capacity USB power bank. BUT, the only reason anyone buys this is for the jump start function. IT WORKS!A neighbor had a TOTALLY depleted battery on a 3.5 liter Subaru. Although well below the 7.5L advertised capacity, any dead battery makes for a good test. INSTANT START after connecting. Easy, flawless, as advertised.

Update: just had it for 2 weeks or so, used it 3 times already and it still said 100% battery... i love it so far and works perfectly for the price I paid. Even though it said 100% battery I'm finally charging it because just in case of anything don't want it to die on me.I bought this because I got tired of taking my dad's portable jump starter because that one is heavy and pretty big... I saw this for $35 and I had to get it since it's basically the size of a power bank and every monday I have to use it since it somehow runs out of battery (since I don't use it the weekend) and this little guy I can have it hidden behind my seat and no one is gonna know it's there... I used this twice today and still has full battery and well will update if anything and let's see how long this lasts

Used this to jumpstart my car today! I charged it months ago and it was holding its charge at 100% so when I needed it, it was ready. It was very easy to use because each cable was clearly marked and it immediately started the battery when I did the jump. The clear markings and simple set up made the whole price feel safe. After starting my car battery, the JumpStart still had 75% life.

It glitched out on me once or maybe I didn’t do it correctly although I was using it before that day but overall I can it works pretty good it’s worth the buy

It’s small and light weight. This is my second time buying this. I bought one for my sister for Christmas and they had to use it twice. She loved it so much that I bought one for my son for his birthday and funny enough the next day he was going to work and his car wouldn’t start. It started the car in one try. I charged it the night before I gave it to him. The price is very reasonable it’s so small you can keep it in your glove box. It would of been a big bonus if it came with a case. I actually bought a case for him to keep everything together. It charges fast. You can test the battery so you know when to charge again. Your only suppose to charge every couple of months so it holds a charge, that’s s big plus. Who knew something so small and light weight could start your car. I’m going to get one for my car, because you just never know you want have to worry about calling someone for help or waiting around for someone to jump start your car. I Highly recommend this product.

I live in Chicago and ride a motorcycle all year round. When the temperature gets below 30 the batteries on my 750cc motorcycle and 175cc scooter always die. I've used this to jump both my motorcycle and scooter about 8 times now on 1 charge. Super simple - connect it to the battery terminals, turn the bike on and hit the engine start... It starts immediately on the first click and has worked every time without fail. It's small enough to fit in my back pack and I take it every time I ride in winter for the peace of mind.

So glad I made this purchase . First off the delivery came a day early and when I open it I was pleased to see how sleek it was but could tell it was made very soundly as soon as I picked it up and handled it . Went and tested it on the car battery that I bought it to use on and first try it started it right up . Very easy to use and anyone could navigate and use it no matter what their mechanical knowledge is , and could do so without written instructions . Very clear on the device where everything connects and what it’s purpose is . Also great extra features to charge iPhone and iPad . Love the product and my whole experience from ordering , from the product and from the delivery was a great experience. I will be doing business with them in the future .-Danny Cassell

For less than $50, this is an awesome car battery jump starter. It not only jump started my car battery super fast but it also has two device charging ports that are perfect for when I go camping with my kids so that we never run out of battery on our phones. This product is small and light to carry. It also has very bright flash light for night time. Overall, this is perfect for my vehicle and my family.