Ok lets just say the cut off period for the battery to count as 1 cycle is about 70%

If u use untill lets day 90-80% u can recharge it up and avoid losing a cycle. It doesnt count.

If ur battery life goes below 70%, eg.65% might as well use it untill finish thn recharge. Or u will lose 65% of battery.

Battery life could last an average of 500-800 cycles before shortage occurs.

Btw its a good thing to download iStat Pro widget on ur dashboard to monitor on the cycle

Im working at an Apple store =D above 3 yrs experience

Download iStat pro thn u'll noe what i mean and the actual battery cycle count rate ;]

Using a Macbook Pro and a Macbook White... seen it, check it... worked with Apple engineering team... cant be wrong

Apple store in Aussie part time whn im studying there

Apple reseller in Malaysia part time... No Apple store here... (and yes i know what is the difference between the Apple Store and a Reseller)

We multitask, so whn engineering center need us we go

I think YeeFang wanted to know about the ''battery health' 70% cut off thingie not the total battery cycle of 800-->1000 in total. Because this is the question most customers ask. And why should we care about the percentage and not the total cycle? Because if u were to charge everytime at 70% or below, u are using 1 cycle and wasted 70% of the battery. That means u reach 1000 faster, and more cycle means ur battery die faster. If u follow the battery health rule ur battery optimizes its usage taking a longer time to reach 1000.

Theres a senior engineer at my place that uses a macbook white, and takes care of the battery cycle like i did. been 4, almost 5 yrs... total battery cycle 500... battery in tip top condition... nonit change. Other friends who doesnt care much about the cycle, battery 3 yrs confirm giv problem... total battery cycle 800+ (battery kembang, battery run out fast etc) So thats y it is important to keep track the percentage

Less cycle = Longer battery life

But nvm lah... if u dont want to headache and care about ur battery... waste the cycle all u want and get a replacement battery... cheap cheap only maaahhh... RM500 +-

Hope tht helps... Sorry if i was doubted, or downed at... or not so good at explaining things

This post has been edited by Creamy Crimson: Jun 3 2011, 11:42 PM

no prob man!

and battery kembang (inflating) is a very scary thing...

Jellybean: I use iStat Pro widget to monitor on the cycle, different models have different breakeven point that range between 80%-70% u can use iStat to check your breakeven point for the cycle

iStat Pro can be downloaded fr here http://www.apple.com/downloads/dashboard/s...s/istatpro.html

calibration can be done if ur macbook is seldom used just to get the battery up and running

ferr & mkaz: continuously charging ur macbook with the ac adapter is safe, and a good thing. It has automatic overcharge protection.

as wei said, it is caused by chemical reaction and heat. More cycle will increase ur chances of an expanding battery.

And yes, dont worry too much bout it and be too paranoid about battery cycles... gadgets are meant to be changed at some point of time