The Weego 66.1 was recently reviewed by Truck Trend as a solution to when your battery dies at the worst possible time.
"I’m sure most of you have experienced that moment when you turn the ignition key of your truck to start the engine and absolutely nothing happens. There is a nearly infinite number of reasons why it is not working, especially on newer vehicles that are heavily equipped with electronic accessories, but there is also a good likelihood that a low or dead battery could be the culprit.
There are a multitude of things that can cause a battery’s voltage to diminish. Some of the more common reasons are related to driver error, like leaving the lights on or listening to the stereo for too long with the engine off. Even if batteries are well taken care of (never drained completely or overheated), they do eventually go bad. While they typically last years without even a hiccup, a new cell can go bad in a matter of weeks for no particular reason.
A battery always seems to die at the most inopportune time, like when you are rushing to pick up the kids from school or running late for work. If your luck is like mine, then it happens when you’re in the middle of nowhere with no one around to help with a jump start. Dead batteries never happen on a lazy Saturday when you’re just going to the store and there is nothing really going on."