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can someone explain this cycle stuff to me. I have 15 right now?

A cycle is how many times your battery has been discharged and charged (ie 1 complete total discharge or 20% one day, 30% the next, and 50% the next, regardless of charging or not). I wish I could give you a stat of my PowerBook's old battery (it was around 20%) but I bought a new one for it the other day, so I'm too lazy to go get the other one.
 
I think if you leave it plugged in all the time it kills the battery. I unplug my MB as soon at it is at 100%, unless I am using the disc drive. Also I let it run down almost all the way before plugging it back in. My battery health is still at 100%, whereas my grandmother, who got a MB last xmas (like 4 months ago), and leaves her's plugged in all the time, has a battery at about 92%.
 
I think if you leave it plugged in all the time it kills the battery. I unplug my MB as soon at it is at 100%, unless I am using the disc drive. Also I let it run down almost all the way before plugging it back in. My battery health is still at 100%, whereas my grandmother, who got a MB last xmas (like 4 months ago), and leaves her's plugged in all the time, has a battery at about 92%.

i don't know i keep mine plugged in all the time and i still have a 100 percent after nearly 10 months but I have only 47 cycles. haha its plugged in right now.
 
Methinks I be calling in at the Apple Store soon...

Lasts about 1hr30 off mains. The Loadcycles isn't right. It's about 13. I don't really use it away from mains, and calibrate it once a month or so.
 

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I bought a new battery 1 1/2 years ago for my TiBook. It currently has 438 cycles and still lasts 2:30 on average. Is it luck or is it the non-battery gulping ppc?
 
Wow;
Looks like the majority of people either do better battery management than I or what?

We usually leave the MacBook plugged in the kitchen island counter, but I'd say at least 1-2 times a week the battery did get a full discharge and re-charge, so we still cycled the battery.

I did use the save feature to sorta track history of the battery, mostly last Oct/Nov is was just over 80%, so I never got concerned and stopped tracking, now of course "How low can I go"?
MacBookBattery4-28-08.jpg
 
Here's Apple's page on laptop batteries.
http://www.apple.com/batteries/notebooks.html
They say that you should atleast slightly discharge the battery fairly frequently.
"Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her MacBook Pro on the train, then plugs it in at the office to charge."
Personally, I take my macbook to work just about every day (while it's asleep), and if I use it at work I'll usually leave it unplugged unless it drops below 50% charge. Then I plug it in when I get home.
So far, my system seems to work for me:
Picture%202.png
 
Pretty good for its age and amt of cycles... I'm a college student, so its basically in sleep mode when I get back to my apt and then plugged in when I'm in class.

battery.png
 
My iBook G3's HD died and I cant be bothered to replace it as im selling it for £70 to my mate's dad and I am getting a MacBook within the next week anyway, so I cant screenshot this or anything...

BUT... After almost 4 years about 80% of the battery was still working according to Coconut Battery!

Do I have a special one?
 
Charge it, run it down, charge it... just like Apple said to do. :p

So, at work I have a Dell Laptop, it docks into a station and I use it there 95% time plugged in, those batteries are different technology than Apple's?

I never had problem in 22 months, same battery, never have to do this re-condition stuff.

btw, we are going to buy a new battery, thx to Fed govt stimulus check!
 
Not to shabby, can't believe its been 5 months already.
 

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I have the best battery :D

Notice also how my maximum charge is higher than the capacity of the battery!
 

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Well, stopped by Apple store, bought a new battery, negative battery cycles??

Charged it for full 4+ hours.

newbatt5-22-08.jpg
 
so basically a good rule of thumb would be just leave it unpluged till the battery dies then charge again?

I left mine plugged in while I did stuff like iMovie and shared to youtube
 
I am doing great! And I know why, I run on power as less as possible, keep the liquids flowing is what the advice is, even when it is Li-Ion

http://www.candlepowerforums.com has some good battery info.

And, that is definitely not the advice.

The only advantage/use of cycling your battery would be to calibrate the capacity measurements.

What would go the farthest to making it last more cycles is if someone wrote a hack to charge the battery to, say, 4.1V per cell instead of 4.2. You'd have slightly less capacity, but much longer cycle-life. There is an advantage to not keeping the battery at 100%, but you can't get that advantage by using it a lot ;)

Apart from that? Keep it cool. They can die with little usage just from sitting under a hot laptop for years. If yours rarely leaves the desk and runs hot, consider removing the battery.

I suppose coolbook, or whatever kept the maximum continuous power lower, would help a little. I routinely play games that give me 1.5h on a MB, which, for the same number of cycles, would be a little worse than using it at a 3-4h rate. Still, only a 1h rate or worse would really be a problem.

50% charge is the best level for long-term storage.

And, last, they are generally good for about three years, even if not cycled much. If you get more, consider yourself fortunate.
 
Technitions at my school told me that discharging and fully charging a new battery 3 times puts it to its full capacity.

My MacBook's battery meter time left thingy jumps around all over the place! From 6 hours to 8 then 2 then 4... Make up your mind! :D
 
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