What is the polycythemia vera life expectancy?

What is a Battery's Life Expectancy compared to Human's life expectancy from the year 1800 to today?

  • I know the average human's life expectancy from birth but I do not know a battery's life expectancy from manufacture and attempts to search come up with ads about the newest laptop battery's and ads about increasing your battery's life.I want to make a chart that shows rate of increase in life expectancy in each for comparison. If one already exists a link would be appreciated.

  • Answer:

    A battery has a rated capacity-not a life expectancy. You could talk about life-expectancy under self-discharge (sometime called shelf-life), but you cannot make a valid comparison between this parameter and a change in life expectancy for people. Your graph may share common axes, but would otherwise have no meaningful correlation. Rated capacity can be translated into a time only if you know the load conditions under which the battery is being discharged. Life expectancy must take into account geography, gender, health, economic status, historical era, etc.. Let me guess- you're in the same science class as the guy with the radio station question! :-)

zeke132191 at Ask.com old Visit the source

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Well ... what type of battery? I mean - Lithium Ion batteries didn't exist until recently, and they have a longer "shelf life" than Carbon batteries. And then there's rechargeable vs non-rechargeable.

Walt_OReagun

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