I don't think so, my mid 2012 mbp still charges to 5560mAh... Oh, it has 300 cycles too...
I'm at 82% not 79%, and in less than 4 month my warranty will expire, should I contact apple support now?Apple might get you a replacement when you have less than 80% capacity while having less than 1000 cycles.
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This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ by GGJstudios
The F.A.Q. includes the following topics:
- BATTERY INFORMATION
- BATTERY LIFE FROM A CHARGE
- AC POWER
- CALIBRATION
- BATTERY LIFESPAN
- CHECKING STATUS AND HEALTH
- CHARGING
- WHAT IS A CYCLE?
- BATTERIES ARE NOT COVERED
- BULGING OR SWELLING BATTERY
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I have a 2009 MBP with less than 500 cycles and 85 to 82 % capacity. I do not mind yet. And probably never will.
I think mine was close to 80% after 2.5 years. I took it to Apple, they ran some diagnostic, and a couple of hours later I had a brand new battery.
I'm at 82% not 79%, and in less than 4 month my warranty will expire, should I contact apple support now?
What kind of warranty is this? 2 years only?
The battery seems to be at the low end of Apples own specifications (up to 1000 cycles with 80% charge remaining), so maybe it is a good idea to show it to Apple. But nobody here can guarantee you that it will be replaced.
I tend to keep it powered with the power source when I'm at home (95% of the time). Is it better to run it on battery power even if I'm at home? Wont this increase my battery cycle drastically?
Is there a chart that lets you know if you are eligible with a replacement from apple?
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what is your use? we have roughly the same cycles and model (mid 2012)
did you have applecare?
I did. It was in the last month of AppleCare.
The graph they showed me showed my battery failing prematurely. I'm not sure if having AppleCare helped in this situation. On my previous MacBook I had a few batteries replaced outside AppleCare because it was either failing early or bulging. This was back around 2010/2011.
it's the standard (non apple-care) legal warranty for all goods sold in europe
You will be out of luck then, I think. Batteries are consumables, so I think they will be excluded from such warranties (like e.g. car tyres would be excluded). In addition the battery is still within specifications.
being very close to the limit, with a third of the stated cycles I expect they will replace the battery, if they don't I'll wait the 23rd month and try again hoping it wil have dropped under 80% by then
by close to 80% you mean 80+ or 80-? btw I have a call scheduled for wednesday and ask them
I tend to keep it powered with the power source when I'm at home (95% of the time). Is it better to run it on battery power even if I'm at home? Wont this increase my battery cycle drastically?
Is there a chart that lets you know if you are eligible with a replacement from apple?
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what is your use? we have roughly the same cycles and model (mid 2012)
having it plugged in 95% of the time might contribute to the issue
having it plugged in 95% of the time might contribute to the issue, I had a battery replaced once an one of the questions they asked was how often do I use it plugged in vs on battery, I am more of a 60/40 split
I thought that the oscillation of the battery from 95% to 100% was designed to keep the battery working while plugged in
No, there is no such function. In fact, Apple charging technology is designed to avoid such short discharges/recharges. When your battery is fully charged, it stops charging and runs on AC power as long as it's plugged in. Only in rare circumstances will it draw power from the battery while plugged in.
Run on battery whenever you need to and plug it in whenever you can. You can plug or unplug any time you need to, regardless of the charged percentage, and you never need to completely drain your battery. Just make sure you don't run on AC power exclusively, as your battery needs to be used regularly to stay healthy.The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
That's either because you're running apps with enough power demands to draw on both AC power and the battery, or you have a loose connection somewhere between your charger and the logic board. Apple batteries do not do that by design. That's why if you plug in a battery that's already around 93-99% charged, it won't charge. Such short discharges/recharges are not good for the battery.I can assure you that my mbp fluctuates 95-100% while on charge