http://www.newnow.com/auto-start-external-battery-c14.html
It doesn’t matter that you have a brand new car or it’s a 10 year old car, if your car will not have a fully charged battery in it you will find it very hard to start your car in a regular way. Normally you will not get this issue, but if you leave your car lights on for overnight or you have an old battery, then you can have a dead car battery. So, in that case an Emergency Jump Starter For Car can be a life saver, and you can start your car easily using that solution. But that is not the only benefit that you will get with it and following are some more benefits that you get with portable car start battery.