Quote:
Originally Posted by ProDigit
I've written a few articles on this on other forums.
I written Duracell and they have confirmed that Li-Ion best always remains charged.
Completely emptying them could cause them to get into a state where part or even the whole of the battery never can be charged again.
A Li-Ion battery always need a remaining voltage, and the less you charge it, the less it wears out.
This resembles my experience of the past 5 years I've been using Li-Ion batteries in my cellphones.
They also recommend to at least charge a non-used battery once every 2 to 3 months (depending on the drain of the battery).
Modern batteries may only need recharging every 6 to 9 months when not used.
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that's interesting, and yes, using a Li ion is the only way to actually keep the capacity up, but i think a topped off battery that sits is worse from my experience with many laptops.
my cell phone was the only one in the family who's battery was never replaced.
i think the best advice is if you want to Use the battery, USE the battery. a battery that sits unused will deplete faster than one that is used every day, this is what most reports ive seen has said.
as for the 6 - 9 months. Never once have I heard any body who keeps their laptop plugged in for more than 6 months go out and get more than 1 hour that their battery gives them. while with actual working laptops they work every day just fine
and my argument for batterys not being stored while full is, if they last so long full, then they would top them off before packaging, instead of giving you a 10-40% battery charge on new devices