Originally Posted By: Arney
Lithium ion cells area best recharged frequently and not allowed to continue charging when full. Conversely, deep discharge can permanently damage them, although many/most lithium ion cells (or the device that uses them) have a mechanism to cut off the load once the cell drains down to the certain low voltage to prevent that damage.


There must be a device in my Treo 700 that stops charging at the top end. I have left the charger on it every night for the last 6 years. The phone finishes charging after about a half hour or so, and the charger stays on it for another 8 hours or so. Then again, in the morning, the charge is full, not just 95% or whatever it would be for being on standby for those 8 hours.
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