Battery life

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GEOS's picture
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Joined: Dec 20 2003
Posts: 334

I've been needing a new battery for my Powerbook G4 for a while now, but I've been doing some thinking and now I'm not sure. My battery has a bizarre way of discharging. Depending on what I'm doing (and maybe the weather?) it will last as long as an hour or as short as 5 min. No joke. If I'm just surfing the web, i can get a decent life out of it sometimes, but as soon as I do something that kicks the processor into gear, its all over. If i try and watch a youtube or other online video the battery will drop to "0%" and go into sleep mode. I can be at 89% capacity, turn on a youtube video and the computer will be dead in a minute. This has me wondering. Does this sound like a battery problem, or could it be a power problem with the Powerbook itself? If its the Powerbook, I don't want to waste $70 on a battery that is no good to me. Let me know what you guys think. Its an original 867MHz Powerbook G4 12.

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Oh, Hazel, look. The field! It's covered in blood

Quad 2.5 G5, MBP 2.6 17", DP 2.7 G5, Mini 2.33, MBP 2.16 CD, DP 2.0 G5, DP 1.42 MDD, 17” PowerBook 1.67, 12" PowerBook 1.5, TiBooks 1GHz 867 & 667, iMac G3 500, Cubes 500 & 450, B&W G3 450 & 350, iBook 300's, 366 466, Beige G3 350, PDQ G3 233

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GEOS's picture
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Joined: Dec 20 2003
Posts: 334
Wow, nobody has any ideas?

Wow, nobody has any ideas?

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Oh, Hazel, look. The field! It's covered in blood

Quad 2.5 G5, MBP 2.6 17", DP 2.7 G5, Mini 2.33, MBP 2.16 CD, DP 2.0 G5, DP 1.42 MDD, 17” PowerBook 1.67, 12" PowerBook 1.5, TiBooks 1GHz 867 & 667, iMac G3 500, Cubes 500 & 450, B&W G3 450 & 350, iBook 300's, 366 466, Beige G3 350, PDQ G3 233

Dr. Webster's picture
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Joined: Dec 19 2003
Posts: 1687
Have you zapped the PRAM and

Have you zapped the PRAM and reloaded the OS recently?

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Bolle's picture
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Joined: Apr 3 2005
Posts: 44
maybe you should reset the PM

maybe you should reset the PMU.

dankephoto's picture
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Joined: Dec 20 2003
Posts: 1900
Probably a failing battery

You've almost certainly got a battery with one of more failing/failed cells. I'd start saving up for a replacement.

However, here's a couple of things to try:
With the battery installed, do a OF reset (reset nvram, reset all), that sometimes can help a battery with a confused 'brain'.

Do a PowerManager reset.

dan k

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GEOS's picture
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Joined: Dec 20 2003
Posts: 334
Thanks guys, but I've already

Thanks guys, but I've already done PRAM, OF reset and PMU reset. Guess I'll just get a new battery. At least they're pretty cheap compared to my old clamshell.

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Oh, Hazel, look. The field! It's covered in blood

Quad 2.5 G5, MBP 2.6 17", DP 2.7 G5, Mini 2.33, MBP 2.16 CD, DP 2.0 G5, DP 1.42 MDD, 17” PowerBook 1.67, 12" PowerBook 1.5, TiBooks 1GHz 867 & 667, iMac G3 500, Cubes 500 & 450, B&W G3 450 & 350, iBook 300's, 366 466, Beige G3 350, PDQ G3 233

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Joined: Jan 24 2008
Posts: 10
I get this problem with one o

I get this problem with one of my schools old dell laptops sometimes. It is the battery going. You do not need to throw the battery out yet. You can use that battery for the mac. (You know, like to keep it sleeping longer when you are on that plane?)