PowerBook - extreemly high full charge capacity

spock · spock #1 (**permalink**)

06-30-2009, 09:28 PM

So my fiance's Powerbook will only last on battery for a few min before it goes into sleep. At first I thought the battery was just bad. However I looked in system profiler and found that the full charge capacity is 64811 (mAh). Now I know that is not right because my MacBook pro is only ~5000 mAh. I just tried the PMU reset and didn't work. Oh yeah and if I let it sit in standby after it shuts down it takes around 2 days to finally shut off completely. Any ideas? Battery shot? need a reset?

Here is what it says in the Battery Info:

Full charge capacity: 64811
remaining charge: 718 (charging right now normally gets to about 4-5k mAh I think)
amperage: 0
voltage 11481
cycle count: 129

Square_nothing · Square_nothing #2 (**permalink**)

07-01-2009, 05:31 AM

erm a 11481 volt battery with 0 amps that basicly static electrisity...

spock · spock #3 (**permalink**)

07-01-2009, 09:57 PM

there can't be any amperage if it is not using the battery. It was charging at the time.

anyone have any ideas? I was watching it later and the remaining charge went up to 4500 mAh before I unplugged it because I am pretty sure the max charge is supposed to be 4400 mAh

Melhof · Melhof #4 (**permalink**)

01-13-2011, 05:12 PM

Quite the same problem here.

Also my girlfriends Powerbook has the same battery problem.
The full charge capacty is about 62822 mAh (62 Ah = the battery size of a car starter battery)
I guess there has been a bad contact in the past and the laptop has been charging and charging till, meter kept on running till this crazy amount.

Every compleet cycle it makes it goes down a little bit. (about 300 mAh/cycle)
But it will mean that the value will be right in about 150 cycles...
But my house works on a few solar pannels, so this is no joke...

I have Googled around and done the PMU reset and also tried:
command-option-p-r (reset PRAM) and
command-option-o-f; reset-nvram; set-default; reset-all

Also cleaned the battery contacts.

The Ah memory chip is probably in the battery its self.
And it does not get reset by the remedies above.

Since this battery is not very good anymore i think about opening it. Disconnect the battery from the chip for some time and by that reset the chip.

Any other solutions?
I am open...

Greetz,
Melchior

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
3 day old macbook, new battery help!?	iPlayLax	Apple Notebooks	5	02-21-2008 12:41 PM
HELP! Sound/Audio on Powerbook Not Reaching Full Capacity??	MacNewbie	Music, Audio, and Podcasting	4	08-17-2007 03:53 AM
97% full charge?	TheInvsbleMan	Switcher Hangout	5	06-25-2007 12:01 AM
New HD not showing full capacity	dijerydack	Other Hardware and Peripherals	6	05-28-2006 03:33 PM
Compact Flash Card... Not Able to Use Full Capacity?	GTwinkie	Switcher Hangout	2	02-20-2005 09:28 PM

PowerBook - extreemly high full charge capacity

Internet Services

Web Development

Digital Marketing

Consumer Tech

spock #1 (permalink)
Member Since: Jul 01, 2008 Location: St Louis Posts: 10 Mac Specs: Macbook Pro 15" 2.5ghz	06-30-2009, 09:28 PM So my fiance's Powerbook will only last on battery for a few min before it goes into sleep. At first I thought the battery was just bad. However I looked in system profiler and found that the full charge capacity is 64811 (mAh). Now I know that is not right because my MacBook pro is only ~5000 mAh. I just tried the PMU reset and didn't work. Oh yeah and if I let it sit in standby after it shuts down it takes around 2 days to finally shut off completely. Any ideas? Battery shot? need a reset? Here is what it says in the Battery Info: Full charge capacity: 64811 remaining charge: 718 (charging right now normally gets to about 4-5k mAh I think) amperage: 0 voltage 11481 cycle count: 129
	QUOTE Thanks

Square_nothing #2 (permalink)
Member Since: Jun 15, 2009 Posts: 27	07-01-2009, 05:31 AM erm a 11481 volt battery with 0 amps that basicly static electrisity...
	QUOTE Thanks

Melhof #4 (permalink)
Member Since: Jan 13, 2011 Posts: 1	01-13-2011, 05:12 PM Quite the same problem here. Also my girlfriends Powerbook has the same battery problem. The full charge capacty is about 62822 mAh (62 Ah = the battery size of a car starter battery) I guess there has been a bad contact in the past and the laptop has been charging and charging till, meter kept on running till this crazy amount. Every compleet cycle it makes it goes down a little bit. (about 300 mAh/cycle) But it will mean that the value will be right in about 150 cycles... But my house works on a few solar pannels, so this is no joke... I have Googled around and done the PMU reset and also tried: command-option-p-r (reset PRAM) and command-option-o-f; reset-nvram; set-default; reset-all Also cleaned the battery contacts. The Ah memory chip is probably in the battery its self. And it does not get reset by the remedies above. Since this battery is not very good anymore i think about opening it. Disconnect the battery from the chip for some time and by that reset the chip. Any other solutions? I am open... Greetz, Melchior
	QUOTE Thanks

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)