10-in-1 Portable Car Battery Jump Starter with Air Compressor 3500A 21800mAh 150PSI Jump Starter 12V Jump Box (All Gas 12L Diesel), Car Battery Jumper Starter Portable Jumper Cables, Lights

Like many folks, my car sits unused. My two year old battery decided it was weary of life and that holding a charge was against its physical beliefs.However, it would hold a charge for a week, then a couple of days, as long as I ran the engine for 30 minutes or so.Speaking of holding a charge, the first time it died, I had my neighbor help me jump the car, thinking this was a one time deal. The next time it happened, they were on vacation.I decided to see if there was a portable jump starter available. Searching Amazon, there are a plethora of products to choose from. I have to admit my choice was between others and it was reading reviews and overall price+product design that made my decision. I can't speak from knowledge of the device pre buying.I will admit, I was hesitant to buy this. I mean, a portable battery charger? Unheard back when I was a kid, and we trickle charged batteries for days, jumped our cars, debated whether we could touch the powdery leaking acid, and other things one did back when we walked uphill both ways to get anywhere.The charger arrives. The first thing that struck me was how small it is. The second thing was, no power cord. This thing charges via USB. I was thinking, no way, no way this can jump start a car. But, that's me, cynical and a disbeliever. So, I plug it in, watch the pretty blinking light, and think, OK, charge away little battery charger.The charge is full. Now, one thing, the cables are short, but that doesn't really matter, this thing is light and you just put it wherever there is a flat surface. I connect the cables. No spark, nothing. I am thinking wait, no spark? What? Oh, I guess you should turn it on. Important safety tip. Turn it on before using it.I get behind the wheel. Thinking, you know, if this doesn't work, how much is a tow truck. When is my neighbor coming home. Who decided we needed jam and jelly.I turn the key. Boom, it starts. Just like that. I disconnect the cables. I let the car run. I am thinking, wow.5 days go by. Same thing, battery is dead. Lovely. I check the charger. 4 bars. It holds a charge even after jumping my car. I jump it again. I go get some Mexican food from a local food truck. Luckily, I take my new charger. We are now calling him Mickey, after the trainer in Rocky. Just because. I get in my car. Turn the key. Nothing. Mickey is hooked up again, he starts my car.Rinse/repeat the above about 3 more times. I realize, not going to happen with my dead battery, need to buy a new one. So I take it in and Mickey is now idle.Now, filling up the tires. It's a little tricky, because you actually should read the instructions, not just plug it in and think whooshing thoughts. But, Mickey filled all of my tires. Oh, and Mickey overfilled my tires, as the person who replaced my battery told me, since my sensor detected the tires were more than full. Oh, and Mickey still had two bars after filling all four tires and jumping my car.In summary, this is a must have product. Must have for every car. Must have if the power goes out since you can charge your phone. Mickey will live inside my car for all time. He is a champion.Last thing, in terms of storage, everything fits inside the case. Even the medal I plan on giving Mickey as soon as I find an appropriate one. I might be gushing but this is an amazing product. And yes, it's put together very well, no loose parts, no scratches, no hidden nicks or anything like that. I know this because I have gone over every inch of Mickey (OK that sounds a little weird but this thing fascinates me, it's like I discovered alien tech or some cold war relic out of a secret Russian lab).Very much a buy recommend. I will stop now, I think I need to start my car and test the new battery ...

I bought this portable car battery jump starter with air compressor a few weeks ago, and I’ve already used it twice — once to jump-start my own dead battery and once to help a neighbor. Both times it worked flawlessly and immediately. The jump-starting power is seriously impressive, and it had no trouble getting my SUV running in freezing temperatures.One of the things I really appreciate is the built-in safety features. It has reverse polarity protection, spark-proof clamps, and an alarm system if connections aren’t made properly. It gave me so much peace of mind using it, especially since I’m not exactly a car expert.On top of that, the USB-C and standard USB ports are super handy — I’ve used it to charge my phone, tablet, and even a Bluetooth speaker during a camping trip. The built-in air compressor is also a great bonus; I’ve used it to top off my tires and even inflate a basketball.Despite all these features, it’s surprisingly compact and lightweight. It fits easily in the trunk without taking up much space, and the carrying case keeps everything organized.If you’re on the fence, don’t hesitate. This thing is worth every penny and could be a lifesaver in an emergency. Highly recommended

Got it out of the box, it had 75% battery. I charged it like it said I brought it in and out of my car because I know how hard could weather is on batteries and I didn't want it to die before I got to use it and in case of an emergency I didn't want it already dead. I did leave it in my car because honestly I got tired of toting it in and out and forgot for the last 3 weeks or so to bring it in and the first time yesterday I went to use it (luckily in my driveway) it would not turn on. I tried to pump my back tire and I pressed every button after hooking up the inflation hose and even with leaving my l the middle button down would not even light up. I thought great ok my bad the battery is dead from the cold, would make sense we had a cold snap bringing temps down to -5°F and maybe that was beyond what any normal battery could withstand. I pumped my tire up with my backup pump and got in the car and plugged up the item and like magic, it lit up and showed 75% battery. So I don't know what happened or what was wrong, but won't be depending on this as my emergency start or pump or even flashlight. **UPDATE** I plugged it back up just to top it off and it ended up bailing me out the next day 2 times, my battery died and I figured I would give it one more try and OH MY GOODNESS!! It was so easy. It took me a minute to figure out our cause it was stupid simple. You turn it on, plug in the jumper cable, connect it to your car, then when the light on the cable turned solid(not flashing alternating red and green anymore), you start your can and disconnect. 4 steps, no buttons to press or anything to setup. Just turn on, plug and hook up and start. I had a $200 jump pack and it was so frustrating lugging it out of my shed and plugging it up and setting to jump and hooking up, then jump start and lugging back and cables and cords everywhere. This i think by far is the best investment I had gotten to date. Will recommend and use as long as it last then buy again. Thank you, no longer needing assistance from strangers or being stranded in the cold with my daughter.

Just wanted to have something like this in my care in case of an emergancy... and just over 30 days after purchasing this product I went on a weeks vacation and when I returned I had a power converter that is on all of the time and it drained my battery. I pulled out this charging device and hooked it up and my work van fired in seconds... shocking... lol I aired up the tires on my bike and that works great as well. Great product, very high quality, very durable, great features, the light brightness is a little weak. But I highly recommended this product to everyone that wants a multi-functional Car Charging/Air Pump/light that is compact and easy to use.