Here's how real-world testing actually goes. First, researchers study the physics behind the technology by asking, "Is this even possible?" If the answer is yes and prototypes are available, battery research labs proceed to beat them to pieces, literally. Researchers have put batteries in ovens at a sweltering 115 degrees for over a year. They've drowned them in swimming pools in an absolute test of the pack's ability to cope with water. They've purposely short circuited them in hopes of a violent, yet glorious, explosion. Sometimes, they grab the Colt .45 and fire rounds at the battery until it just can't handle any more. It may sound more like a Mythbusters episode than something carried out by highly-trained engineers, but these are all examples of real-world testing. Surprised?
[Source: NYTimes | Image: Pak*r - C.C. License 2.0]