Schumacher Electric 800 Peak Amp 12V Portable Lithium Car Battery Jump Starter & Power Pack - Lithium Ion Jump Box - with USB Charging & LED Emergency Light - SL1638

Worked perfect to start my big van, after leaving the headlights on, and was very easy to connect to the battery. It easily stores under my driver seat for easy access. It is pretty light and felt sturdy. I plan on taking it camping with me to charge misc items when electricity is not available.

Great product. Simple to use and very compact. I bought this primarily to go in my wifes Jeep, and for me to take on long distance motorcyle trips. It charges pretty quickly after the battery is low.

This worked great to start my car battery. I watched the How-To video and it started my car the first try. Used it to charge other devices too, like my phone. In warm weather, I kept this in my apartment till I needed it; Then kept it in the trunk until I could buy a new car battery. But then I moved to cold weather. Caution: best not to leave it in the car trunk in cold weather; If it freezes, it is broken! Worked great until then. Only downside was the rubber coating disintegrated after awhile... as in got sticky and was getting like melted rubber. Maybe from salty air (by the ocean)? I had it for several years; worked great till it froze in a midwest winter.

This is an amazing thing to own! I bought it @ a year ago and just used it recently to jump start a car. Very powerful. It failed to start the car the first 2-3 attempts. I had do the "turn all electrical things on" in order to start the dead battery. It worked beautifully. Started right up! It is small, handy and does the job. Every woman needs one of these!

Needs recharge quite often.. haven't had to use it yet however

I bought this a couple of years ago and have never used it, until yesterday. I need a new car battery, but haven't had time. My battery will die if I don't drive the car every couple of days. I finally remembered that I have this, so charged it up and threw it in my car. Yesterday, my car wouldn't start, so I hooked this up (I keep it charged and it holds a charge for a very long time) and it worked like a charm. No more asking neighbors or strangers for a jump. Very glad I have it.

The first 5 or six times I used the jump box. It worked perfectly, couldn't of asked for a better product. Infact the jump box was so powerful it even cold started my New Holland 5610 tractor. I was amazed...I woke up one Saturday morning around 7ish , wanting to get some much need yard work done,. Being early spring. As I prepare my Cub Cadet lawnmower for the task of cutting knee high weeds, every stick, branch, child's toy or tree that will be in sight of the Barefoot family yard.. for the fortunate none North Carolinas. that's all the beautiful yards will grows the early spring of North Carolina.As I turned the ignition key to start, nothing happened. I quickly realized, "yes " the battle dead. No problem right. I have a new amazingly powerful jump box. I quickly applied the +'red' to the positive termamal. Same process to the negative. I firmly grabbed my trusty jump box and pressed the center button to activate the device. The center button became stuck.??? I was confused, I taped it softly, repeated the taping over and over again. Same result. I tried a small flat screwdriver to pry on the sides and edges of the button. My attempts were in vain. I slowly gave into the fact my new amazingly powerful, impressive and perfect in my eyes, had failed me so soon. I now shamefully avoid friends and family for the fear of my failure jump box will be brought up in conversation. I am taking the disappointment day by day trying to void it from my memory of the power I once could yield freely and boastful. As time slowly drags on , the one light that keeps me going is the one year warranty I have shamefully applied for. I often look back on the days I could laugh at week or dead batteries. My one hope for redemption is a lone email that was sent to a manufacturer name I dare not say. I will continue to attempt being strong through the trial of my future on cranking trucks, lawnmower and even tractors again some day.

These hold a charge for a long time, and have several uses as jump starters and backup power supplies.