Less than 1 day old battery -- 99%?

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Level 1

1 points

Less than 1 day old battery -- 99%?

I had my battery replaced yesterday on my MBP 13", running 10.6.8, from mid 2010. I charged it to 100% last night and worked with the AC adapter for a while. iStat Pro said my health was at 100%. I then turned off my computer for the night, and this morning, with 0 cycle count still, my battery health is at only 99%. Today I'm doing a calibration of my battery, but I'm concerned that it's already gone down 1%. I know 1% isn't a big deal, but shouldn't it have stayed at 100 for more than a few hours, which is really all it's gotten since I had it turned off? 😕

Here's the current stats of the battery

Battery Information:

Model Information:

Serial Number: W02226LC8D3LC

Manufacturer: SMP

Device name: bq20z451

Pack Lot Code: 0000

PCB Lot Code: 0000

Firmware Version: 0201

Hardware Revision: 000a

Cell Revision: 0165

Charge Information:

Charge remaining (mAh): 5414

Fully charged: No

Charging: No

Full charge capacity (mAh): 5717

Health Information:

Cycle count: 0

Condition: Normal

Battery Installed: Yes

Amperage (mA): -690

Voltage (mV): 12228

MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.4), BATTERY REPLACED - 7/19/2012

Posted on Jul 20, 2012 9:29 AM

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Answer 1

Best reply

stedman1

Community+ 2024

Level 10

256,440 points

Jul 20, 2012 9:32 AM in response to JustAGirl17

Your battery is fine. The battery health will fluctuate, today it may be 99% tomorrow 100% next day 98%.

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Answer 2

Jul 20, 2012 10:16 AM in response to JustAGirl17

You're fine. As stedman1 says, it changes all the time.

My battery goes from 5720 one day to 5610 to 5724 and now to 5684.

If your battery lasts you over 5 or 6 hours in normal use - not using games, then you have nothing to worry about.

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Answer 3

JustAGirl17 Author

Level 1

1 points

Jul 24, 2012 6:29 PM in response to stedman1

Sorry to bother you, but I'm just curious because it now says only 94% ... and that seems like a greater fluctuation than necessary. It's also now only capable of 5412 mAh. I'm mostly concerned because my applecare will be running out before this battery would actually fail so if it is defective and going down this quickly, I'd rather know now... Apple doesn't do refurbished batteries in their repairs like they can do some other parts, right? Thanks for your time.

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Answer 4

Jul 24, 2012 6:31 PM in response to JustAGirl17

are you getting over 5 hours of use from it?

if so, try not to worry about it so much...........

like i said before, my battery keeps on changing state.....now i'm at 5507. last night i was at 5601.

if however, you feel that it's not performing as it should, then take it to Apple and have them test it for you before your warranty expires.....

good luck..

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