Strange Power settings Option

[Churchill]

Does anyone know what the new setting in the Power settings mean, and I am talking about:

"When device is turned on, do not charge the battery when connected to PC"

Either I do not understand what it menas or this is a totally useless feature... Why would I not want to charge my device while connected to USB?? Save the battery of your LAPTOP ??

[patr!k]

yep. or keep pda's battery in better condition and charge only when it is almost empty...

[RemE]

Yes, when portable, or connected to a non powered USB port or hub, the phone won't be tapping power. Not bad to have a choice.

Lithium batteries do not need or like to be deep cycled.

[MATTHEWLONG]

With Li-ion batteries I think the best thing to do is top them up all the time. There is even some talk that running to empty doesnt do them any good.

Matt.