@gailcalled Then I’ll read it for you. :)
It basically says that always filling a battery up to 100% is a bad thing to do to conserve battery life unless you are going on a long trip. Filling it up to 80–90% is better.
It also says that the larger the amount that is drained from the battery between charges, the worse it is. This pretty much means that letting it drain down to 50% every single time you use it is a bad idea. It lists 10% drop as best, but recognizes that this is sometimes impractical.
It also states that the colder the temperature, the better. It gives 0 degrees Celsius as the best temperature, but the computers themselves tend to function better at higher temperatures.
Finally, it says that they can fail if not charged and discharged enough.