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Lithium battery FAQ?

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Posted by William P.N. Smith on December 14, 2004, 7:55 am
 
Anyone know where I can find any documentation on the care and feeding
of LiIon batteries?  Charge regimes, discharging, state of charge,
etc?  Don't know that I need to get into the chemistry of them, though
that can be interesting, and can lead to a better understanding of
lifetime, etc.

Thanks!


Posted by Martin Riddle on December 14, 2004, 7:29 pm
 
Will,

Try the Panasonic web site. They have good usable data on  NIMH and NICAD, They
should have some on LION.
App notes too...

Cheers

<William P.N. Smith> wrote in message


Posted by Robert Morein on December 16, 2004, 5:35 am
 
<William P.N. Smith> wrote in message

http://www.batteryuniversity.com/parttwo-34.htm



Posted by Gymy Bob on December 16, 2004, 5:17 pm
 Yes, don't discharge them fully or they are done. Keep them about 2/3
charged.

<William P.N. Smith> wrote in message


Posted by m II on December 20, 2004, 11:14 pm
 Gymy Bob wrote:


These fine people disagree with you. They say a TWENTY percent lower
limit is fine.

====================================
When specifying the number of cycles a lithium-based battery can
endure, manufacturers commonly use an 80 percent depth of discharge.
This method resembles a reasonably accurate field simulation. It also
achieves a higher cycle count than doing full discharges.


http://www.buchmann.ca/Chap10-page6.asp
====================================


Gymy, were you also the one who said that circuit breakers had to be
replaced after one trip?



mike







--
"The day Microsoft makes something that doesn't suck is
probably the day they start making vacuum cleaners."

Ernst Jan Plugge


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