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
> 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 Robert Morein on December 16, 2004, 5:35 am
<William P.N. Smith> wrote in message
> 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!
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
> 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 m II on December 20, 2004, 11:14 pm
Gymy Bob wrote:
> Yes, don't discharge them fully or they are done. Keep them about 2/3
> charged.
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
> 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!