Pleased with this battery

[Wang Foolio]

Once again, I ask why people are getting so up in arms over something like this.

These things are an estimate only. You callibrate so that it has a more accurate estimate of battery health. It does seem a bit odd that the mAh reading is fluctuating a bit, but that's hardly the OP's fault if the software is slightly inconsistent.

Anyway, we should be giving partial credit to Mr. Bell Curve as well as the designers if the readings are true. For every battery that fails or rapidly tails off after a handful of cycles there will be one that miraculously maintains health after hundreds of cycles.

Having a battery that shows near-100% health after years and a thousand cycles is like winning the lottery. It probably won't happen to you, but there's enough people out there that somebody's gonna win eventually.

 

[GGJstudios]

Having a battery that shows near-100% health after years and a thousand cycles is like winning the lottery. It probably won't happen to you, but there's enough people out there that somebody's gonna win eventually.

Having good battery health after a large number of cycles isn't a lottery. It's the result of properly caring for and using your battery. It's not a game of chance. While some batteries may be defective, the rest can all perform well if used properly.

 

[Droid13]

"Pretty much" isn't the same as "exactly".
"keep it on the mains for a bit" isn't the same as 2 hours.
"then leave it some more" isn't the same as 5+hours.
It only works when you do it correctly.

And that is what I have done consistently for 3 and a half years, on a monthly basis. Exactly. As specified by http://support.apple.com/kb/HT1490 .

Once again, I ask why people are getting so up in arms over something like this. These things are an estimate only (...) Anyway, we should be giving partial credit to Mr. Bell Curve as well as the designers if the readings are true

As i jokingly said before:

...chances are I am just lucky with this one, the next one will be extra bad to even things out lol

I am quite curious about the readings I get now and am interested to see what happens after another recalibration and a fresh install of iStat.

Will post again soon!

 

[Droid13]

Recalibration Complete

Recalibration performed to specification.

Laptop went to sleep at around 23:30 having discharged from full running on AC power for approximately 2 hours. Laptop left for over 5 hours overnight. Charged fully from around 07:00. Now running off battery.

coconutBattery installed to provide detailed battery information.

Here's the screenshot. Looks like I have a 5020 mAH battery. Looks like there is a considerable margin for error in these readings. The thing I don't get is the age of my MacBook being reported as 31 months when it was bought in May 2007 - that would be coming up to 44 months...

EDIT: Had logic board replaced for broken ethernet port during second year of ownership, could this be influencing the reported age? Have put in my serial number, hasn't made a difference.

 

[Droid13]

Dear All,

I cannot explain why my battery still works, or indeed why coconutBattery reports that my MacBook is younger than it is. For those wishing to understand more about MacBook batteries and their maintenance, the following links are all useful:

http://guides.macrumors.com/Laptop_Battery_Guide
This link is a general overview, also includes some of the starting charge capacities of some of the older laptop batteries

https://forums.macrumors.com/posts/9875442/
This is GGJstudios updated overview, particularly useful for those with newer machines

Both of the above texts provide further links to software that can be used to check the health of a battery.

http://www.apple.com/batteries/notebooks.html
This is Apple's page on looking after batteries. The most useful part of it reads "Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her notebook on the train, then plugs it in at the office to charge. This keeps the battery juices flowing"

http://support.apple.com/kb/HT1490
This is Apple's support page for battery calibration, split into sections for old and new machines.

Right, I better get back to enjoying my holiday.
Take care all.

Regards,
Droid13

 

[Droid13]

Battery is finally dying...

Dear All,

My battery is finally conforming to natural laws and has begun its death spiral.

I can only hope that Apple releases an updated iMac before my machine and its power source finally succumb. Maybe in a couple of months?

Best regards,
Droid13

 

[GGJstudios]

My battery is finally conforming to natural laws and has begun its death spiral.

I can only hope that Apple releases an updated iMac before my machine and its power source finally succumb. Maybe in a couple of months?

Your battery is perfectly fine. What makes you think it's dying? It is perfectly normal if your battery health (maximum capacity) is more or less than 100%, even when brand new, or if it fluctuates up or down over time. For further details, read the CHECKING STATUS AND HEALTH section of the following link.

This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

 

[biohead]

Your battery is perfectly fine. What makes you think it's dying? It is perfectly normal if your battery health (maximum capacity) is more or less than 100%, even when brand new, or if it fluctuates up or down over time. For further details, read the CHECKING STATUS AND HEALTH section of the following link.

This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

Check the date of his original post, and his updated post. Then perhaps read the whole thread to understand why he updated with this info.

Sometimes the textbook answers are completely inappropriate.

 

[GGJstudios]

Check the date of his original post, and his updated post. Then perhaps read the whole thread to understand why he updated with this info.

Sometimes the textbook answers are completely inappropriate.

I have read the whole thread, and have participated in it for more than a year. There is nothing in the OP's screen shot that indicates the battery is dying.

 

[Droid13]

It is finally over...

Dear All,

My battery has finally failed. That's it. All over. No complaints.

I intend to replace with an iMac and would like to get away without spending any more money on this machine - new batteries (from Apple at least) cost £101 http://store.apple.com/uk/product/MA566G/A/rechargeable-battery-13-inch-macbook-black?fnode=5a

My only question now is, as a safety/performance issue, am I better off leaving the battery in or removing it completely from the MacBook?

Thank you for your help.

Regards,
Droid13

 

[Blondie :)]

I don't think it's too much of an issue to leave it in, unless it starts swelling. If it starts swelling, you'll notice because your trackpad won't really work anymore.

 

[Droid13]

Thanks!

Hopefully I won't experience battery swelling - with any luck I'll have my iMac in late December / early January and can submit the machine for recycling...

 

[chrisperro]

so apple suppose to throttle down the machine when the battery is out,so a dead battery is the same as no battery?