[ltp] Running without a battery?

[James Knott]

Theodore Ts'o wrote:
> On Thu, Jan 15, 2004 at 11:21:20AM +0100, Uwe Walter wrote:
> 
>>On Mi, 2004-01-14 at 10:50, Dr. Jason Breitweg wrote:
>>
>>>I have a a TP240 and just got a new battery for it.  I read somewhere that
>>>the best way to keep the batteries life long is to charge it fully then
>>>use it until it is almost fully uncharged and then charge it and so on.
>>
>>Not with Li-Ion any more:
>>
>>http://www.batteryuniversity.com/parttwo-34.htm
>>
> 
> 
> This is definitely an interesting article, which I urge everyone to
> read. 
> 
> The one thing which I'm not convinced about was the recommendation not
> to use a battery while on AC mains, since the battery temperature
> rises when fully charged.  I was fairly sure that on modern Thinkpads,
> once the battery is fully charged, the charging circuit disengages,
> and no power is applied to the battery until it has been discharged
> below 95%.  Hence, it would seem that the battery should not be
> getting hot once it is fully charged and the laptop is running on AC
> mains.  Can anyone confirm this?

I don't know specifically about the battery, but the whole computer 
tends to get a bit warm.