001B 4000A Car Jump Starter, Jump Starter Battery Pack for Up to 10L Gas and 8L Diesel Engines, Portable 12V Jump Box with USB Ports, LCD Display, Storage Case, LED Light

I’ve had this for several months now and I have helped out friends with battery issues. This is so convenient especially in situations where you cannot jumpstart with another car. Also it’s much safer than using jump cables with another vehicle. It has other functionalities like flashlights and phone charger The battery life is very good too. I lent it to a friend who was having starting issues (he really needs to by a new battery for his car) and has used it no less than 6 times to start his car over a two week period without recharging. This is great value for the money. Strongly recommend as car batteries nowadays gives no warnings before they die. It’s so easy even your wife can use it 😊

Excellent starter, easy to use and very useful, helps me a lot when my car falls out of battery and charges quickly, I recommend them

My husband had mixed feelings at first. He thought maybe it would not have the power to jump as needed. He used it and it worked very well. It is compact and he can easily carry on his motorcycle. Very easy to use and well designed.

I purchased this jump starter for my son. I had a coupon code, and the price was right. Very reasonable price.Pros: it is compact. It has a flashlight. It’s ready for 3500 amp jump. Has USB connections. Shows a display of the battery life. Easy to use. Also serves as a battery power bank. It functions well. The design is functional and easy to use. Charging is simple.Cons: very plasticky. Does not seem to be a heavy duty well-built item. We will see.

Compact, with storage case, easy to use. Flashlight is bright and has different modes of flashing. It charged quickly, but haven't had to jump start anything yet, but I feel secure it will work when needed! Works well as a charging port! Great quality at low price

I left the dome light on for a social engagement. It was about 6 hours in all in sub-zero temperatures. When I got back to my car, I saw the light still on, but dimmer than normal. So, I switched it off, crossed my fingers and pushed the start button.Click. And then! Nothing. 😠Luckily I always have cables and knew that since the evening was done others would be out soon and indeed one was. I asked for a jump and he said he would help. Without power however, I could not even unlock the back hatch to get to them, so started to climb through the back seat to lift up the spare tire storage when he stopped me."Don't worry about that." he said then returned to his car to get one of these. We popped the hood, hooked it up and VROOM VROOM (Its a Mazda) started right up! So I just had to have this for my next blunder!On the bright side, I have not had that problem again, but have been near to others with who have! Now I got to be the hero of the moment to give them a start from something in a nice convenient case of portable power! Excellent value!

I have electrical issues in my vehicle that cause my car not to start sometimes, I went through 3 batteries (that all tested good) before I decided I had to stop pulling out the big cables and waiting for help. This little box has saved me so many times already! Super easy to use, you can hear it *click click* when it’s charging (my brand new battery) and my car starts perfectly! The only down side is that I feel it takes a while to charge. Sometimes it stays at 87% for example for an hour or two. I unplug it and plug it back in and it charges to 100% pretty soon after that.I would highly recommend this jump box to anyone! Love that it’s cheaper than a tow or a new battery, saves time waiting, and it’s super portable!

Honestly did not expect much from such an inexpensive booster, but I've been pleasantly surprised. My luck, a short while after buying it I had some battery drainage issue and jumped my car off twice before I could get a replacement. Them a coworker needed it. Between the 3 jumps, it went from 95% to 93% after also using the flashlight. Honestly can't go wrong for the price.