In article .com,
"Mike Granby" wrote:

Conclusion: Don't trust the battery monitoring software,
and don't expect any real warning of an impending
low-battery shutdown.

Amen! Mine was showing 17 hours' life, so I didn't bother taking the
power cable into the plane, and 40 mins later, the thing died!

Don't you have to cycle Lion batteries a few times before they reach
maximum charge? For my laptop batteries, the manufacturer suggests
running them low and recharging once in a while to help ensure a more
accurate battery life indication, so there's some tie-in with the
software that guesstimates the battery life.



JKG