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zillatron
28th June 2005, 10:13 AM
Hi all...

Just wanted some feedback from fellow iBook owners:

How is the battery life on your replacement battery?
Same? Better? Gone backwards?

Since i got my replacement i've noticed a distinct drop in battery life - not really sure why...

Could it be the battery is still new, and needs a few cycles to get it up to peak perfomance?

Could it be that I upgraded to Tiger?

Could it be a dud?

Could it be the Earth's alignment to Jupiter?

Interested in your experiences thus far...discuss!

Z
:thumbup:

iSlayer
28th June 2005, 10:17 AM
how much are you getting ?

zillatron
28th June 2005, 10:22 AM
Originally posted by iSlayer@Jun 28 2005, 10:17 AM
how much are you getting ?
At the moment around 2:20.

Taken off the charger at around 7:40am (in sleep mode) woken up about 8:45am.

I'm used to about 4 hours...!

iSlayer
28th June 2005, 10:25 AM
2:20 is awful from a new battery.
Contact apple.
You should get over 4 hours as you said from a new battery.
i get almost 4 on a current model powerbook and they use alot more power

zillatron
28th June 2005, 10:31 AM
Originally posted by iSlayer@Jun 28 2005, 10:25 AM
2:20 is awful from a new battery.
Contact apple.
You should get over 4 hours as you said from a new battery.

Agreed!

i might have to go back to my old 'faulty' battery!

Has anyone else had a similar issue?

pipsqeek
28th June 2005, 10:59 AM
Yes, the battery will need to be fully cycled a few times before you see any great battery life.

2 hours is a little sus though.

pipsqeek

zillatron
28th June 2005, 11:03 AM
Originally posted by pipsqeek@Jun 28 2005, 10:59 AM
Yes, the battery will need to be fully cycled a few times before you see any great battery life.



Thats what i thought - i just had a look in the system info thingy, it says the cycle count is 8.

i'm going to flatten it completly (like the calibration thing) and charge it tonight. See what happnes....


2 hours is a little sus though.
Hence the post here - i wasnt too sure.

And i cant remember what happned when i first got the iBook.

lucky i havent sent back the other battery yet, i might have to fit this one back in the box too :)

zillatron
28th June 2005, 01:50 PM
To further all this....what is the mAh rating supossed to be on these batteries?

In the system profiler, it says the full capacity of this battery is 4431mAh.

Is that anywhere near right?

Thanks for your ideas and comments so far!
Z

Kildare
28th June 2005, 02:39 PM
Mine says 4220mAh & lasts for 4-5 hours typically.
36 on the cycle count however from first use the battery life has always the same.

zillatron
28th June 2005, 03:25 PM
Just tried a mate's battery and his reported 4472 and 17 cycles.

Cant imagine that 41mAh difference would kill 2 hours worth of capacity.


Mine says 4220mAh & lasts for 4-5 hours typically.

then there is that...maybe its just a dud. I'll cycle it tonight and if its no better i'll call Apple tomorrow...

bummer!
Z

mvjs
28th June 2005, 03:36 PM
That 4-5 hour guy might be refering to withour Airport time. If you have Airport on doesn't it kill 2 hours of battery life? Thats what I thought

Kildare
28th June 2005, 04:33 PM
Well considering Apple states "up to six hours battery life" with iBooks & a new battery is giving you less then half that you'd have to wonder - regardless of usage. Good luck with it. :)

zillatron
28th June 2005, 04:42 PM
a new battery is giving you less then half that you'd have to wonder

for sure! and whats worse is the one thats 'faulty' was working as you would expect...so i've gone backwards!


Good luck with it.

Thanks!

I've never had to call Apple before...should be interesting... B)

Z

zillatron
30th June 2005, 10:14 AM
Ok folks, here is an update for all that are interested:

Called Apple, guy on the phone ran me though resetting some power managment thingy (hold down shift, control and option, then power button for 5 seconds...)

Told me to calibrate the battery again and see how i go, if its still doesnt come good, call them again and they'll arrange something for me.

cool - so i did what he suggested, and charging of the battery to at least 2 times as long after the reset and flattening.

Good sign....checked the 'Power' sectionin System profiler again and the rating of the battery has changed to 4578mAh. Happy with that.

After charging, the useable time is 2:38. still not great. I'll use if for today and charge it again tonight. cross my fingers and toes and hope it starts to get better.

Somehow i think i'll be calling Apple again tomorrow :)

Z

Kildare
30th June 2005, 01:03 PM
Originally posted by michaelvjsmyth@Jun 28 2005, 03:36 PM
That 4-5 hour guy might be refering to withour Airport time. If you have Airport on doesn't it kill 2 hours of battery life? Thats what I thought
I rarely have my Airport off.

zillatron
30th June 2005, 01:10 PM
Originally posted by Kildare@Jun 30 2005, 01:03 PM
I rarely have my Airport off.
Ditto.

Still was getting over 4hours with the 'faulty' battery.

Z

macdonald
30th June 2005, 07:43 PM
How do you navigate thru' System Profiler to get to the battery mAh rating and charge cycles? I've been running around in circles trying to find it.

zillatron
30th June 2005, 08:51 PM
Originally posted by macdonald@Jun 30 2005, 07:43 PM
How do you navigate thru' System Profiler to get to the battery mAh rating and charge cycles? I've been running around in circles trying to find it.
You have to have Tiger, its listed in uner 'hardware' as 'power'

doesn't appear in Panther!

Z

zillatron
30th June 2005, 09:38 PM
Just being bored and waiting for my ibook to recharge, i noticed that there is a process consuming ALOT of cpu time...like about 75%.

I'm about to google it, VShieldCheck....anyone have any idea what that is?

its eating CPU cycles faster than i can eat gumi bears - might be why the 'Amperage' field in system profiler (which indicates negative when on battery and posative when on charge) is always very high (negative) when on the battery....

For the slower in the crowd - maybe this is whats eating my battery?


the saga continues!
Z

edit: VShieldCheck is part of Virex apparently, and not compatiable with Tiger...
here (http://http://www.macworld.com/forums/ubbthreads/showflat.php?Cat=&Board=UBB13&Number=326095&page=7&view=collapsed&sb=5&o=&fpart=1)
for a link from macworld that Google found..

If only i'd noticed ealier! :thumbdn: