4000A Car Battery Jump Starter Portable Car Jump Starter for Up to 10L Gas and 8L Diesel Engines

Easy to use!! Compact and easy to stow-a-way!! Perfect price. Gives me peace of mind know I have it if needed. And I am able to help others when needed. Was a great purchase Read more

Won’t ever need a new car battery. My car always starts and you can charge your phone. It’s also a flashlight. Amazing! Read more

I was heading out the door for a meeting. My 19 Toyota Tacoma was sitting for weeks in the cold. I drive another truck for work. The Toyota wouldn’t start. Just the rapid ticking sound of the starter. I remember I purchased these for my kids and wife an well as myself for Christmas. It was on my back seat still since Christmas. I plugged in the clamps and placed on the battery. Wow unbelievable I pushed the starter button and started right up. Again it was sitting on my back seat with single digit cold. Great investment. I brought 5 of these. Read more

Works great on jump starting but it doesnt stay charged long. Read more

I have a f350 diesel with a 6.7L During one of Michigan subzero snow falls I went out to my truck the next morning and my truck wouldn’t turn over at all. I purchase this jump pack because it could be delivered that night and it was reasonably good priced. It arrived that night as predicted charged it full even though it came 75% charged already. Went out the next morning, so two nights in subzero weather, hook it up per direction and that 6.7 diesel fired right up with no hesitation. I would definitely recommend this product!!! Don’t be fooled because of its low price this product is a dynamo!!! Very easy to use, very well put together and durable, powerful enough to turn a 6.7 L in two day subzero weather, says that battery life is good for 60 starts which I have to believe due to the ease in which it started my truck, and it has a great little case that keeps it organized and stored nicely. Read more

Works well. Easy to use. Nice to have in your car for emergencies. Nice and compact Read more

My battery in my jeep is around 10-12 years old, can't remember when I bought and replaced it but I know a battery's average life span is 5-7. Anyhow it's been extremely cold this year, below zero in the morning's and my jeep has had some slow cranks but keeps on starting until the day it won't want to and it's not a if it's a when she won't. So I bought this for when that day comes. Well it has happened twice now once was my sister in-laws and my elderly mother. I hooked this jumper up and on my mom's van the battery was completely dead on a -5 degree day, so I pushed the override button and the v6 van cranked right over, took 5 seconds maybe but it kept a consistent crank speed and it started up. My sister in-laws was on the same day a few hours later and it also cranked right over and started. This was all on the same charge I gave the jumper when I received it the week prior and after two jumps the battery indicator light went down by one solid blue light. I'm very impressed by this especially for the cost as I got it on sale for 30 bucks. Ohh I also used it to fully charge my dead cell phone the day I received it and it charged it fast. Very handy to have with you when your in need. Better than the days of carrying around jumper cables and having to waive someone down to jump start your car and no liability issues if their was ever any problems frying someone's electronics in their vehicle. You never know now days with these newer cars. Read more

I got this to start my car it was dead from the freezing cold and snow.. I put it on maybe 3 mins it revved right up , super easy for women , definitely a good thing to have and keep in the card also use as a power bank for emergency snow storms shutting off power… this surprised me I do have the jump it again but just had a really bad snow storm but also needing a new battery. Ladies get thissss! Battery life is great stayed 4 blue circles for almost 48 hours. On the go good always a just in case. Read more