CYCMIA C01 800A Peak Portable Car Jump Starter with USB Type-C 5V/3A Battery Booster with Smart Charging Port

This power back is spectacular! This came recommended to me from a friend so I gave it a try. When it arrived I honestly didn't think a power pack this small would work. My old one I keep in the garage is half the size of a car battery and weighs almost as much. This is about the size of a cell phone and twice as thick. I needed it today to jump a portable generator that had a dead battery. In 10 degrees it it wouldn't even turn over. I connected the cables to the power pack, connected it to the battery, and it started right up. I disconnected the power cable from the battery pack and disconnected it from the battery, and done! This little wonder is going in the truck for sure, and I'll buy one for my wife's car as well.

I'm a professional mechanic and have a older style "portable jumper" roughly the size of a shoe box that's maybe 10 lbs. I was tired of lugging around the old reliable and was looking up and comparing newer portable charger/jump starters like this for a while. There are cheaper options available that aren't as capable and there are more expensive ones that are bigger and stronger. But this one works great for me. I have a moto Droid z it can give it about 4 full charges. The jumper is rated at 800 peak amps and says it can be used for 7.2 Lt gas or 5.5 Lt diesel engines. The other day I had a Ford with a 6.7 lt diesel. Those normally have two 750 CCA batteries and they were both completely dead. I didn't want to over stress my new jumper so I had the old shoe box connected to one battery and this new one to the other. I pressed the boost button on this and had my buddy turn over the truck and it started! I was really impressed when I noticed I had forgot to turn on the old shoe box jumper lol this thing started it by itself. I really like this thing. It's really capable, it fits in my back pocket and it's not all that heavy. Similar devices off a professional grade tool truck are 3 to 4 times as expensive and are less capable. I would definitely recommend one of these.

I bought this portable car jump starter in case of emergencies which didn't occur to me yet but it also came in handy for non-emergencies situation. The device seems to be well made and it has held up well so far to being used several times as a charging device for my phones.Detailed jump start instructions are printed on the jumper clamps which is very considerate in case I lost the user manual.The intelligent jumper clamps (unlike other simple clamps) has over current protection, short circuit protection, overload protection, over-voltage protection, over-charge protection. It will check for the battery level, warn if the connections are reversed, and low battery buzzing to indicate jump starting needed.It also comes with a sturdy carrying case that fit all accessories and cords and leaves plenty of room for additional cables. The flashlight has 2 modes (steady light and SOS) and is bright enough for lighting up the immediate area when you are trying to connect the cables to your dead battery.

Bought this as a back-up for 2 cars going to Barrett-Jackson auction January 2018. Charged it following directions and fortunately did not need it. Did need it for a boat battery jump in October and it did not work. Tried to recharge it for 24 hours and it is completely dead. Not even enough juice to turn on the flashlight. I recommend you look at a different product.

I bought this about 5 months ago but did not have the opportunity to try it on a car engine until a couple days ago. It worked perfectly, started the car, and impressed my friend so much that I gave it to her. The sleek compact design and storage case are also a big plus for this unit. I'm sure my friend will have more use for it than I will and the storage case might keep her dogs from chewing the cables (I hope).Previously I had just used it to charge my phone and it did that well too.

This car jumper has been life saving for me. I have had to use it several times in the last two weeks. I have been having car troubles and was not comfortable being stranded and trying to find someone to give me a jump. The charge lasts a very long time. The clamps are pretty small and that was my only complaint. My car starts right up with no trouble when using this. I feel so much better having this in my car.

Works as advertised, I used it to start my silverado once.UPDATE: used it to jump my truck once, tried to jump another car a year later and it wouldn't work. Thought the battery is dead, plugged it in to charge over night, still didn't work. Realize the flaws light isn't even working, it's not holding any charge anymore. 1 time use I guess.

My friend has one and recommended it to me, after waiting 5 days for it although I do have prime, after fully charging it, I tried to jump a car and it started beeping and lost the full charge. It didn’t work after that so it was a waste of time.