[Noisebridge-discuss] lithium-ion battery questions

Michael Shiloh michaelshiloh1010 at gmail.com
Sun Dec 20 04:28:56 UTC 2009


I little suspicious advice. I think discharging completely is very bad 
for Li batteries, so much so that they usually have a built in circuit 
that cuts out at some threshold.

If no one on this list is an expert, I can forward your question to a 
friend who is quite an expert.

M

John Magolske wrote:
> I recently bought a replacement lithium-ion battery for my X40
> ThinkPad. The salesperson at Central Computers mentioned I should
> charge it to 100% and completely discharge it, cycling twice in this
> manner as an initial "breaking in" procedure. Would anyone know if
> this is appropriate for a lithium-ion battery? Battery University [1]
> recommends against discharging lithium-based batteries too deeply.
> 
> Also, there are safety issues with lithium-ion batteries [2], so I'm a
> little concerned that I might be taking more of a risk by purchasing a
> "no-name" replacement rather than the official Lenova branded battery.
> 
> [1] http://www.batteryuniversity.com/parttwo-36.htm
> [2] http://www.batteryuniversity.com/partone-5B.htm
> 
> TIA for any perspective on this,
> 
> John
> 
> 



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