MacBook Pro Batteries Gone Wild

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MacBook Pro Batteries Gone Wild

Postby pastrybot » Sun Jan 04, 2009 6:46 am UTC

Well, I have a bit of a crazy battery.

According to Mac OS X's System Info, the battery is doing quite well:

Code: Select all

Full charge capacity (mAh):   4563
Health Information:
Cycle count:   296
Condition: Good
Battery Installed:   Yes
Amperage (mA):   0
Voltage (mV):   12428

Real life disagrees, however. The battery will power the computer for exactly three seconds, then fail. It doesn't matter whether it's completely charged or not. Lately, it's taken to occasionally not working at all. When you unplug the AC adapter, it immediately shuts off. Not good.

I've looked at a bunch of support sites that recommend resetting the System Management Controller and recalibrating the battery... none of them work.

So, Help Desk, should I just bite the bullet and shell out $70 for a new battery?
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Re: MacBook Pro Batteries Gone Wild

Postby b1ackcat » Sun Jan 04, 2009 3:38 pm UTC

before you go buy one of apples overpriced batteries, I suggest you ensure that the battery is actually the problem. Find someone you know with a macbook pro and ask to swap out the batteries for a second. If theirs won't stay on but yours will with the new battery, then yes, it's the battery. if you dont have any friends with a macbook, then take it to an apple store, they should help you with that switch (especially since it means you'll have to buy a replacement part from them).

It's also possible that it's your macbook that has the issue. Maybe a bad contact with the battery, maybe some internal problem. If that's the case, you made need to take it to be repaired if you can't find a solution online (macbook repairs tend to be expensive, because macs don't fail often, but when they do, it's usually catastrophic).

Hope this helps. Good luck.

edit: it's early. grammar is hard
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