I have a smaller 1k unit that I was using from Walmart and there were a couple of occasions in cold weather it would not jump my 17 Ram Ecodiesel until it warmed

Amp 12V as I live in cold weather country, and recently my Dodge Ram 2500 diesel would not start due to the cold.

I tried using this on my brother's car in really freaking cold weather, (about -10 degrees F) and it did nothing.

Starts diesel after sitting too long without getting started - helpful for older batteries or cold weather.- Minimizes engine wear by providing strong starts during Winter.- Fill air or power other DC appliances without starting truck or opening the hood.- Charge mobile devices, headlamps, or any USB charged device.- Charge up quickly while driving.

Be careful of cold weather though

So worth the money , the cold weather kills my battery on my tahoe every year if i dont drive for a few days

never failed to start any of my vehicles even in cold weather

So worth the money , the cold weather kills my battery on my tahoe every year if i dont drive for a few days

this little unit will start my engine even in the cold with the help of glow plug know how. cycle 8 times with glow plugs in cold weather, then try to start

Cold weather kills car batteries fairly

I have not tried it in cold weather yet, but I am expecting it to do well.

Cold weather kills car batteries fairly

Got to use it at work on a Ford e350 in pretty cold weather

But the car had only been driven maybe 600 miles in 6 months so with cold weather the car would not crank.

Perfect tool for this frigid weather

Really easy to use, very powerful, great to have around the house as well as in the car

The car was parked in a bad spot for jumping, nose in against a fence and a bunch of total strangers running as fast as they could from the guy with his hood up

Very powerful I have used it about 10 times never failed to start a vehicle, I work in a car dealership as a

n’t failed me