I've jumped two different cars 3 times each (we were having temporary battery issues) and the cars started instantly each time and the JNC box still hasn't lost any charge

I borrowed this from my neighbor twice now - and has brought my Prius Plugin 2012 model back from the dead 2 times now

He has used it probably 100 times or better this winter ... electrical short in his car of some kind he is having to wait until spring to locate because of the snow and ridiculously cold temps up there ... and he is VERY HAPPY with it!!No wait time

I love it, as a lady that has gone thru a thousand jumps and dead batteries (Smh i know) this is has been my savior every single time!

and i know he has used it many times thru the years and has not failed once

Works every time.

Works great every time.

This thing gets used 5-10 times per year and has never failed.

I've jumped my car a few times with it and it worked every time

The same day my car died 5 times in one day from a bad battery cable

Tough on batteries and vehicles can have a hard time starting - especially if they are not kept in a garage

Based on the positive reviews and a recommendation from another dealer, I ordered one of these in 2012, it was regularly used (abused a few times) and it lasted until 2019

I have had the "pleasure" of having to jump my wife's car multiple times in the since I got this

Both times, worked perfectly.

I'm not sure why this has so many bad reviews, so far it has been entirely reliable and has worked every time

Tough on batteries and vehicles can have a hard time starting - especially if they are not kept in a garage

We had a wiring issue in our Honda Odyssey, where the battery would constantly drain - couldn't pinpoint the issue, and my second car had a hard time jumping the minivan

It works every time

Very strong jump all the time!

Worked great the short time that it worked.

So far this jump starter works every time

worked every time i jumped my car....worth the money!

We have dropped these off the engine compartment to the ground more times than I can count piece have broke off the Box and it still works

My little car (Mazda Miata) has a difficult time starting when the temperature dips down into the 20s or

My car had a parasitic drain and I bought this jump box because I'm having a hard time finding the source of the power loss

Time after time I thank myself for getting this

I have had this unit for just over a year and it has been useful many times

piece of junk i used 3 or 4 times and it died!!

hassle-saving!This has jumped my car multiple times over multiple years

Worked like a charm ever time.

Works every time, once I start the trucks they usually will hold a charge and start the vehicle as long as I'm using them daily

Works every time!

Works first time, everytime

My all time best was a car that has sat for over a year and it started up 1st try

Works every time with a good charge on it

Tried 3 times in different ocasiona with dead battery...never worked

I own a towing company it's works every time we use it every day bet one i have ever bought

I killed the battery three times

It's only been used twice so far, but has been flawless both times.

In these days of uncertain times, it is always good to be prepared

Works great every time!

Works EVERY TIME & powerful!

no problems only jumped my mower a few times.

Works awesome every time

This has been a lifesaver more times than i can remember.

Love love love this unit has worked every time

First time using a box to jump, so easy

love it, use it all the time.

I've been buying this jump start for years, it works really good all the time.

n’t know if it works yet

n’t work