> Sorry for the waste of bandwidth...  Laptop users: what would
> be a reasonable life expectancy for a Li-Ion battery?  I have
> one from an IBM ThinkPad 600 that's just about 1 year old,
> and it already seems to be dying on me.  The user claims to
> have done the discharge/recharge song-and-dance several
> times, but it still lasts for less than 30 minutes.  Is a 1
> year lifespan typical?  That just seems too short to me...

Attempting to measure the life of rechargeable batteries in calendar time is
not too meaningful, since it depends completely on how they are used and
treated. Li-Ion batteries are nominally good for 400 cycles, as are NiMH
batteries; their memory-effect-prone NiCd brothers are good for about 500
cycles.


Steve Dirickson   WestWin Consulting
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