Currently Being ModeratedMar 27, 2013 10:43 PM (in response to nmondal)
Your machine is one of the newer models with the battery that does not need calibration, unlike some of the older MacBook Pros. Unfortunately, you may have caused some damage to the battery by 'calibrating' it so often - I suspect that's why you're getting the "Service Battery" message.
Sooner or later you're going to have to replace the battery - Apple considers the battery to be a user-consumable item and it sounds as if yours is almost 'consumed' even with the low cycle count.
Currently Being ModeratedMar 28, 2013 4:45 AM (in response to clintonfrombirmingham)
Thanks Clinton for the help. Perhaps you have a valid point.
But from here... [http://forums.macrumors.com/showpost.php?p=9875442&postcount=23]
I can see "Calibration does not affect your battery health, improve battery performance, or extend battery life"
So, it does it boil down to a defective battery then? Or the soaring temparature of Hyderabad is in effect?
Currently Being ModeratedMar 28, 2013 4:49 AM (in response to nmondal)
I don't consider MacRumors as a reliable source. If your Mac is showing "Service Battery", then there's nothing more you can do for your battery apart from taking it to an Apple Store or reseller to have the battery replaced. Another option you have is to use your computer connected permanently to a power source, but I don't think you would like that
Currently Being ModeratedMar 28, 2013 4:53 AM (in response to nmondal)
That's an old article and they also say:
The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries.
...so I don't know if cailbration can or can't 'hurt' the battery health on the newer models.
I agree with mende1 - get the battery replaced if you're not getting the time that you expect with it, or just live with it until it dies.
Currently Being ModeratedMar 28, 2013 4:55 AM (in response to nmondal)
Running the battery down to shutdown does not calibrate a Lithium-Ion battery, it only calibrates the charge reporting circuitry. In fact, independent studies show that full dischartge/charge cycles degrade the life of a Lithium-Ion battery 4 to 5 times faster than cycles to only 50% discharge/charge.
What information to you see when you go to the apple in the left corner of the menu bar, About This Mac, More Info, System Report, Hardware, Power then battery Condidition, Charge remaining, Capacity, Cycle Count and Voltage?
If the Condition is anything but Normal it needs to be checked by an Apple tech at the Apple store genius bar.
Currently Being ModeratedMar 28, 2013 6:04 AM (in response to nmondal)
That is pretty clear that the battery needs to be replaced, they do not actually "service" the battery.
While the cycle count is low for a failed battery, there have been a few similar issues the past couple of weeks. The projected battery life of 1,000 charge cycles is a statistically-based estimate of the battery life, the point at which the capacity drops to 80% of the as-built capacity. The battery-cycle count curve is a bell-shaped curve, with the peak at 1,000 cycles. So there will be batteries that fail sooner and batteries that fail later. You happened to get one that has failed sooner. There are no guarantees a battery will survive to 1,000 cycles.
Take the computer in for service and have the battery replaced, it won't heal itself so don't frustrate yourself trying.
Currently Being ModeratedMar 28, 2013 6:56 AM (in response to nmondal)
You're wlecome. Did you buy AppleCare with the MBP? If so, talk with the techs about whether or not you have any coverage for the battery. They cost in the range of $129-149.
Currently Being ModeratedMar 28, 2013 9:35 AM (in response to Ralph Landry1)
Apparently my battery *automatically healed*.
I am not sure if that is a good thing or a bad thing, or anything at all.
After I completed my callibration (And I am not ever gonna do that, again, thanks to all the knowleges you folks
shared with me...)
Here is how it looks like:-
Battery suddenly is back to normal.
I have no idea how it happened, or if this is a software BUG.
I do not have extended Apple Care Plan... so I would have to loose my 140$.
This might actually be an intermittent failure, later would come back and hunt me again, no idea.
BUT somehow, it is working now.
Currently Being ModeratedMar 28, 2013 10:07 AM (in response to nmondal)
Not sure why but that has been reported by other users who had the service battery alert. The replace alert never clears, however. Don't fixate on it but be aware of the battery condition and if you get the alert or worse alert, take it in for testing.