Power warning

Scoobie Newbie · Scoobie Newbie #1 (**permalink**)

12-17-2011, 07:25 PM

My Mac used to let me know when I had 10 min of power but now it just shuts off. Any idea on how to put that warning back on? Thanks.

chscag · chscag #2 (**permalink**)

12-17-2011, 08:30 PM

What's the condition of your battery? Download the free coconutBattery 2.7.2 to see what the overall condition of your battery is. Your battery may be diminishing too fast when it gets low in order for the 10 minute warning to be issued.

Scoobie Newbie · Scoobie Newbie #3 (**permalink**)

12-17-2011, 10:19 PM

battery is good 73% capacity

chas_m · chas_m #4 (**permalink**)

12-18-2011, 01:35 AM

How old is this battery? 73% would suggest it's pretty old.

Scoobie Newbie · Scoobie Newbie #5 (**permalink**)

12-18-2011, 01:57 PM

Curent capacity is 4363 mAh, design capacity 6300 mAh with 290 load cycles

Scoobie Newbie · Scoobie Newbie #6 (**permalink**)

12-18-2011, 02:54 PM

Well I thought it was the battery but it happened again. I tried to restart it with no luck. I plugged it back in and fired it up. I still have 58% battery left so I am totally confused not as to what the issue is.

pendlewitch · pendlewitch #7 (**permalink**)

12-18-2011, 03:00 PM

Have you recalibrated the battery at all?

TilkiliKiz · TilkiliKiz #8 (**permalink**)

12-18-2011, 03:22 PM

What battery is the OP speaking of? And is the only way to find out status of the battery with that coconut battery ?

pendlewitch · pendlewitch #9 (**permalink**)

12-18-2011, 03:33 PM

Quote:

Originally Posted by TilkiliKiz

What battery is the OP speaking of? And is the only way to find out status of the battery with that coconut battery ?

Hi,we assume that it is the proprietary battery and there are several ways because this is a smart battery.

Here's one:

http://batteryuniversity.com/learn/a...ery_fuel_gauge

Scoobie Newbie · Scoobie Newbie #10 (**permalink**)

12-18-2011, 06:15 PM

I have no idea how to recalibrate the battery. It is the second battery I have owned, from the Mac store. computer is over 3.5 yrs old I am concerned that it is not the battery now as both Coconut and the computer both indicatied that the battery was 58% full when it shut off this time. The times before I just assumed it was the battery. This has happened about 3-4 times now.

Scoobie Newbie · Scoobie Newbie #11 (**permalink**)

12-18-2011, 10:12 PM

Happened again at 58% power, unplugged. Plugged in and it is working fine. Battery icon says service battery.

chscag · chscag #12 (**permalink**)

12-18-2011, 10:45 PM

The battery may actually be bad. Why don't you try a new battery and if it does the same thing, return the battery for a refund. Or have them check it out at your local Apple store.

pendlewitch · pendlewitch #13 (**permalink**)

12-19-2011, 12:48 PM

Quote:

Originally Posted by Scoobie Newbie

I have no idea how to recalibrate the battery. It is the second battery I have owned, from the Mac store. computer is over 3.5 yrs old I am concerned that it is not the battery now as both Coconut and the computer both indicatied that the battery was 58% full when it shut off this time. The times before I just assumed it was the battery. This has happened about 3-4 times now.

Hi,

Follow this link which explains things for you.
Apple Portables: Calibrating your computer's battery for best performance

What chscag says is probably right though, but if you are looking at potentially your third new battery in 3.5 years it might be that your charging regime needs adjusting to something more suited to Lithium which is in essence to recharge more regularly in smaller amounts rather than big, big recharges from the red-zone and beyond.

Scoobie Newbie · Scoobie Newbie #14 (**permalink**)

12-19-2011, 04:58 PM

Thanks pendlewitch, I do big charges actually. Drain to close to nothing then recharge. I will adjust accordingly.

dtravis7 · dtravis7 #15 (**permalink**)

12-19-2011, 05:50 PM

My ibook did that and it was the battery. It started not giving the warning then as time progressed, it shut down at a higher and higher percent.

chscag #2 (permalink)
Member Since: Jan 23, 2008 Location: Fort Worth, Texas Posts: 32,016 Mac Specs: 21.5" iMac 2.5 GHz i5, iPad 3rd Gen., 3 iPods	12-17-2011, 08:30 PM What's the condition of your battery? Download the free coconutBattery 2.7.2 to see what the overall condition of your battery is. Your battery may be diminishing too fast when it gets low in order for the 10 minute warning to be issued. Community Guidelines
	QUOTE Thanks

chas_m #4 (permalink)
Member Since: Jan 22, 2010 Location: Victoria, BC Posts: 13,705 Mac Specs: 2009 MacBook Pro, Black speakers, Black Benq second monitor, black iPhone 4, Black 2012 iPad, etc.	12-18-2011, 01:35 AM How old is this battery? 73% would suggest it's pretty old. Cheers, chas_m -- My essay for switchers and newbies
	QUOTE Thanks

pendlewitch #7 (permalink)
Member Since: Sep 10, 2011 Location: Nelson,UK Posts: 1,645 Mac Specs: iMac 27" Mid 2010, 3.2GHz Intel Core i3,4GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, ML 10.8.3	12-18-2011, 03:00 PM Have you recalibrated the battery at all? iMac 27-inch Mid 2010, WD My Book 1TB Firewire, Magic Mouse,Magic Trackpad, iPhone 4, iPod Nano 4GB 3rd Gen,ATV2, Samsung LE40 Series 6, Denon AVR1910, Kef HTS 1001.2’s and Kube-1 Sub Denon DCD510AE, Panasonic DMP-BD60,Sky+HD,Logitech Harmony One Advanced. MOTM October 2012.
	QUOTE Thanks

chscag #12 (permalink)
Member Since: Jan 23, 2008 Location: Fort Worth, Texas Posts: 32,016 Mac Specs: 21.5" iMac 2.5 GHz i5, iPad 3rd Gen., 3 iPods	12-18-2011, 10:45 PM The battery may actually be bad. Why don't you try a new battery and if it does the same thing, return the battery for a refund. Or have them check it out at your local Apple store. Community Guidelines
	QUOTE Thanks

dtravis7 #15 (permalink)
Member Since: Jan 04, 2005 Location: Modesto, Ca. Posts: 25,814 Mac Specs: iMac C2D Late 2007 20" with 10.8.3, Macbook Santa Rosa 4GB Ram OSX 10.8.3	12-19-2011, 05:50 PM My ibook did that and it was the battery. It started not giving the warning then as time progressed, it shut down at a higher and higher percent. ...Dennis Mac-Forums Community Guidelines
	QUOTE Thanks

Power warning

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Scoobie Newbie #1 (permalink)
Member Since: May 03, 2008 Location: Canada Posts: 166 Mac Specs: 17" MBP, 2.5 GHz, 4GB RAM, 250GB HDD, OSX 10.8.1.....iTouch 4, 64gB....iPhone 5	12-17-2011, 07:25 PM My Mac used to let me know when I had 10 min of power but now it just shuts off. Any idea on how to put that warning back on? Thanks.
	QUOTE Thanks

Scoobie Newbie #5 (permalink)
Member Since: May 03, 2008 Location: Canada Posts: 166 Mac Specs: 17" MBP, 2.5 GHz, 4GB RAM, 250GB HDD, OSX 10.8.1.....iTouch 4, 64gB....iPhone 5	12-18-2011, 01:57 PM Curent capacity is 4363 mAh, design capacity 6300 mAh with 290 load cycles
	QUOTE Thanks

Scoobie Newbie #6 (permalink)
Member Since: May 03, 2008 Location: Canada Posts: 166 Mac Specs: 17" MBP, 2.5 GHz, 4GB RAM, 250GB HDD, OSX 10.8.1.....iTouch 4, 64gB....iPhone 5	12-18-2011, 02:54 PM Well I thought it was the battery but it happened again. I tried to restart it with no luck. I plugged it back in and fired it up. I still have 58% battery left so I am totally confused not as to what the issue is.
	QUOTE Thanks

TilkiliKiz #8 (permalink)
Member Since: Dec 13, 2011 Location: Maryland-US Posts: 30 Mac Specs: Processor:2.7GHz Intel Core, 4GB 1333 MHz, Mac OS X Lion, 27 in. display	12-18-2011, 03:22 PM What battery is the OP speaking of? And is the only way to find out status of the battery with that coconut battery ?
	QUOTE Thanks

Scoobie Newbie #10 (permalink)
Member Since: May 03, 2008 Location: Canada Posts: 166 Mac Specs: 17" MBP, 2.5 GHz, 4GB RAM, 250GB HDD, OSX 10.8.1.....iTouch 4, 64gB....iPhone 5	12-18-2011, 06:15 PM I have no idea how to recalibrate the battery. It is the second battery I have owned, from the Mac store. computer is over 3.5 yrs old I am concerned that it is not the battery now as both Coconut and the computer both indicatied that the battery was 58% full when it shut off this time. The times before I just assumed it was the battery. This has happened about 3-4 times now.
	QUOTE Thanks

Scoobie Newbie #11 (permalink)
Member Since: May 03, 2008 Location: Canada Posts: 166 Mac Specs: 17" MBP, 2.5 GHz, 4GB RAM, 250GB HDD, OSX 10.8.1.....iTouch 4, 64gB....iPhone 5	12-18-2011, 10:12 PM Happened again at 58% power, unplugged. Plugged in and it is working fine. Battery icon says service battery.
	QUOTE Thanks

Scoobie Newbie #14 (permalink)
Member Since: May 03, 2008 Location: Canada Posts: 166 Mac Specs: 17" MBP, 2.5 GHz, 4GB RAM, 250GB HDD, OSX 10.8.1.....iTouch 4, 64gB....iPhone 5	12-19-2011, 04:58 PM Thanks pendlewitch, I do big charges actually. Drain to close to nothing then recharge. I will adjust accordingly.
	QUOTE Thanks

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