[ltp] Running without a battery?

[Ivarsson, Torbjorn (T)]

> -----Original Message-----
> From: Theodore Ts'o [mailto:tytso@mit.edu]
> Sent: Thursday, January 15, 2004 9:03 AM
> 
> 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 got the impression from the article that the heat they referred to was the heat generated by the computer (CPU etc.) and not the charger. In other words (as I understood it), use only the battery when needed to avoid it being exposed to heat.

But without the battery you'd loose the "UPS"-ness benefit. I don't want to be without it, especially here in Florida where the power has a tendency to go away for about 0.5 seconds a couple of time per week...

T.