Scatach 002 4000A Car Battery Jump Starter,12V Jump Starter Battery Pack (up to 10.0L Gasoline and 8.0L Diesel Engine), Portable Jump Box with LED Display, 3 Modes Flashlight and Jumper Cable

Best absolute product! Very compact and helpful! Not terribly expensive. Reliable and quick even when dying.

I was SHOCKED that this thing actually worked! A few days ago, a technician told me my battery was near the end of its life as I was getting my oil changed. But I figured I'd still have time to shop around for a decently priced replacement. Well, me being stupid, I forgot all about the battery not being good and while I was cleaning out my car's interior one night, I turned the key slightly so the music would play and I'd have some light. Long story short, within 15 minutes, the battery COMPLETELY died. It wouldn't even make that cranking sound when you turn the key! Just nothing... Thank God I was in my own parking lot because I don't have jumper cables with me foolishly. Even if I did, I don't know too many people in my area that I felt comfortable asking for help from some I'm fairly new to this city.After doing some research, I was a bit skeptical about this thing, but I figured, I wanted to wait till my next paycheck before dishing out $200 on a brand new battery if I can. And this was cheap enough, as well as I figured I could just return it if it didn't work. Plus, it can double as a phone charging power bank, which I need cuz my phone is constantly dying lol. So I figured I'd give this one a chance.After charging it up to 100% once it arrived the next day (which I can't remember what the charge was exactly, but it was already over 90% for sure), I went out to give it a go, not expecting much. And to be fair, it wasn't JUST because I had never seen these devices and it sounded too good to be true, but also I knew my battery was basically just fried and at the end of its life cycle anyway, so I didn't even know if it was POSSIBLE to save in the first place. Anyway, I hooked it up as per the instructions, turned the key, and BAM! The engine started up immediately!! I unhooked the battery thing and saw that it still had 99% battery left in it somehow too! I couldn't believe it!I'll definitely be keeping this with me in the car forever from now on until the day I die (or can't drive anymore for whatever reason lol). And I personally feel good recommending this device to literally everyone. It's cheap and it could save you tons of money or at least a headache. Worth it to me!

Performs well above expectations!! Compact and versatile, feels like cheap plastic due to its lightweight but survived its first drop (although from only 3 feet) with no damage inside or out. Would recommend as a great alternative to the more expensive brands!

Inexpensive and simple, it works well. Price I paid: $29.99. Pros: Inexpensive, small, comes with a rugged case for storage, does exactly what it says it does and it does it fine. Cons: Not a lot of battery power, (8MaH, which is pretty small by 2025 standards, and I don't know how much of that 8MaH is accessible for use (most don't let you use the full battery before quitting), battery has a slow but real drain over time while in storage so you will need to charge it every 30-90 days, don't just leave for a year. I charged this overnight to 100% after using it, minutes later I turn it on and it drops from 100% to 99%, then 98%, then 97% over the course of about 90 seconds. So, not so great. My experiences using it have been to jump a 2004 2.4L Honda (not a huge motor) that the battery had sat too long and needed replacing. It did jump it, but it went from 100% to 54% in about 20 seconds of being plugged in. I drove to the store to buy the replacement battery, thought I'd see it the car battery was holding a charge or not (nope), jumped it again, down to 20% and really weak. I also had a big jump pack in the car so I was OK either way. I also loaned the jump pack to a gal pal when her car needed it, the reverse polarity safety does work (how do I say "red to red and black to black" any more clearly?!), and it was fine in the end. I more wanted to see if she could follow directions, I guess not.

This is the 2nd exact same jumper I bought in 2 days. These are awesome, my wife already used the first one and it was excellent so I bought the same one for my car.It came with the jump box, charger, cables (although they could be a little longer), instructions and a zippered hard case.Highly recommend !!

It works wonderfully! I needed to jump my car and had no one to help me, so I ordered this. It got me back up and running easily. It now lives in my car so I'm never stuck again!

Had a 2month old dead battery on a Ford fusion and this thing started it right up after jumper cables didn't work.Might have been old cables but either way I am so impressed.Gonna keep this purchase.

Well made, robust connection, typical functionally for these devices. Light bar charge indicator is less desirable than a percentage charge display. Recharges adequately BUT drops 1 bar, 20%, after a couple starts on a 4 cylinder engine with a battery discharged to 10v. Starts however are very strong. With charge at 3 bars or below, it would not start a Tacoma V6. Works well for incidental and infrequent use before recharge. Price was very affordable. I actually bought 2 units and gifted one.