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MACBook Pro Battery....

C

ccusum

macrumors newbie
Original poster
Dec 13, 2011
2
0
Hi, name is Chris. I have an issue with my MACBook.

What happens is I charge the battery fully to 100%. unplug it and shut it down for the night. I am at 100% when I shut it down and I know it is NOT IN SLEEP MODE. The following day, I turn it on and it is at 50%, later that day, it is either at a very low precent or 0%. I took it to the Genius Bar, and they replaced the battery and I bought a brand new charger.

I am not new to computers, I'm more of a PC guy, but I know there is something wrong my my PC laptop is outlasting my MAC.

Just to be clear, and let you know, I have a 2009 version of the MACBook pro, 15 inch. running snow leopard with the latest version of 10.6.8, 2.66GHz, Intel Core 2 Duo and I just recently wiped the HDD and reinstalled the OS with no additional apps installed.

Any one have any ideas?

P.S. as of writing this post, I lost 10% charge on the battery.
 
GGJstudios said:
False.

This should answer most, if not all, of your battery questions:
Click to expand...

Actually, I performed these tasks and it still is not working.

As far as not having to calibrate the battery is False. user removeal batteries need to be calibrated. at least once a month. So my battery is one that needs to be calibrated.


I took the laptop to a differet genius bar, and I think I got the "mother" of all techs. she agrees with me that the battery is draing too fast. she told me that it needs to go into the depot for repair, but I will look into this after the holidays and post back with what the fix it.
 
lionheart619 said:
My battery max capacity is 97%. I just bought it almost weeks ago, and I never over charge it. :confused:
Click to expand...
Read the Battery FAQ I posted. It's normal that your battery health (max capacity) is less than 100% and that it fluctuates up and down over time. Also, you can't overcharge your battery. Even if you leave it plugged in, it automatically stops charging once it's fully charged.
ccusum said:
As far as not having to calibrate the battery is False. user removeal batteries need to be calibrated. at least once a month. So my battery is one that needs to be calibrated.
Click to expand...
Actually, removable batteries can be calibrated every 30-60 days. It's not required that they be calibrated every month. Read the Battery FAQ. Also, the model you listed in your first post, a 2009 15" MBP 2.66MHz model, has a built-in battery, not a removable one. It does not require regular calibration.

Portables with built-in batteries
Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider.

MacBook Pro (13-inch, Mid 2009) and later
MacBook Pro (15-inch, Mid 2009) and later
MacBook Pro (17-inch, Early 2009) and later
Click to expand...
 
Last edited:
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