Handheld Jump Boxes

With my Cadillac, its pretty easy to run the battery down, lots of interior lights, leaving the key on trying to hunt down electric problems, etc. I always keep one of these little hand held jump boxes charged and near the car so I can jump start it if I need to. This weekend, we went to see one of my cousin's graduate from Ranger School. He had left his car on base without seeing it for over two months and asked me to bring jumper cables. We got to the car, battery was dead, dead, dead. Not even interior lights. The little hand held jump box is a lot more convenient than jumper cables, I told him we would try that first. His Subaru rolled over slowly, but started. I am just amazed by these little boxes. You just wouldn't think because of the size, that they would be able to start a car, but they do. If you don't have one, and you are car guy, you need to get one. Lots of different ones out there, but this is a picture of mine:

And it will charge your phone over and over again, and theres a flashlight.