Brain Teasers
Lost MP3 Player
Trivia
Trivia brain teasers have some element of trivia in them, but they are not just pure trivia questions.Trivia
Ralph was a very disorganized guy. About three years ago, he lost a nice MP3 player that had a lithium-ion battery. Last night, he found it and put it in its charger. The next morning, he found it was still dead.
It was fully charged when he lost it. It had been charging all night. Nothing had broken the MP3 player. Why wouldn't it work?
It was fully charged when he lost it. It had been charging all night. Nothing had broken the MP3 player. Why wouldn't it work?
Answer
If a lithium-ion battery is left unused for a long period of time, it goes into deep discharge. This can cause a battery that charges in three hours normally to take about fifty hours to charge. If left long enough, deep discharge can cause it to stop working completely. Ralph was unlucky to have this happen to him.Hide Answer Show Answer
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Comments
YES!!! I got it in! And it was close to being rejected...
not bad but you can bring back even a dead lithium ion battery using a pulse charger set higher than the voltage of the battery
i figured it worked somthing like that, but didnt know what it was called.
Just a regular dead one, when it dies in deep discharge, it won't come back, whatever you do.
Thanks for the comments!
Thanks for the comments!
Kind of easy if you are aware of this type of battery and fortunately I was.
oh no wonder my portable dvd player wasnt working and now i know why thanks!!
hahaha didnt get that one
Cool!
But I am SOOO not good at trivia. . .
But I am SOOO not good at trivia. . .
I got it when it said Lithium-ion. Good, though!
clever, but easy
moral of the story: don't lose your lithium-ion batteries
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