What level should I keep the battery at?.. And that 1GB image file..

[Christopher Bort]

On 05/08/07 06:34, libertyof76 at supernet.com (Matthew Butch) wrote:

>Don't forgot that the MacBook does not use Li-Ion Batteries, 
>but LiPo batteries:
>
>http://en.wikipedia.org/wiki/Lithium_polymer_cell

And don't forget that the procedure for calibrating MacBook (and 
PowerBook and iBook) batteries involves intentionally allowing 
the battery to drain fully every few months:

<http://docs.info.apple.com/article.html?artnum=86284>

Apple also recommends that notebook batteries not be plugged in 
all the time. Rather, they recommend that the battery should be 
exercised regularly:

<http://www.apple.com/batteries/notebooks.html>

'An ideal use would be a commuter who uses her MacBook Pro on 
the train, then plugs it in at the office to charge.'

>On May 08, 2007, at 02:02 , Chad Leigh -- ObjectWerks Inc wrote:
>
>>
>>On May 7, 2007, at 9:00 PM, steve harley wrote:
>>
>>>they whom i call Jim Witte wrote:
>>>>is there a general level should I keep the battery at most 
>>>>of the time - ie, that I shouldn't charge it *above*?
>>>
>>>just plug it in; i'm usually pretty fussy, but in this case i 
>>>think its simpler to just trust Apple's firmware to do more 
>>>or less the right thing; notice that the power circuitry 
>>>automatically stops charging for a while when it reaches full 
>>>charge (the light on the connector goes out); this is an 
>>>optimization for better battery life; worst case you could be 
>>>more productive and have cash on hand for a new battery in a 
>>>year or two
>>
>>What I have heard is not that Li-Ion don't liked to be charged 
>>above a certain level, but rather, that they don't like full 
>>discharge.  Ie, better to let it run to 40% and then plug it 
>>in than to let it run out.
>>
>>Same goes for your cell phone -- plug it in every night 
>>whether it needs it or not.
>>
>>However, in reading wikipedia 
>>(http://en.wikipedia.org/wiki/Lithium_ion_battery) it seems 
>>there is some tuth to what we both have heard.
>>
>>Chad

-- 
Christopher Bort
<topher at thehundredacre.net>
<http://www.thehundredacre.net/>