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PB G4 Ti Battery evaluation ?

Message #1 - Posted 2008/09/12 - Norm

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

Battery percentage stays at 0%.

If battery is gone, is there a "best" place to purchase a replacement?

Thanks in advance.

Message #2 - Posted 2008/09/12 - Claude V. Lucas

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

Battery percentage stays at 0%.

If battery is gone, is there a "best" place to purchase a replacement?

Thanks in advance.

Presuming that you are referring to the battery charge indicator.

Before you spend, give this a go.

Boot it on the power supply.

Unplug the power supply, let it sit till the battery goes dead.

Plug the power back in and let it charge up.

This might take a few hours.

See if that recalibrates the indicator.

If it does, then you're all set.

If not, unplug it again and see hoe long it takes to die again.

If you have a reasonable amount of charge time you might not need to buy a battery.

If it dies quickly then the battery is gone...

"reasonable" and "quickly" are something *you* have to decide for your situation.

Message #3 - Posted 2008/09/12 - nospam

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

does the powerbook work when plugged in and battery removed? what kind of run times are you getting?

Battery percentage stays at 0%.

if it stays at 0% when charging then it's definitely gone.

If battery is gone, is there a "best" place to purchase a replacement?

apple might still sell them, otherwise check ebay. also, newertech has replacements if apple doesn't.

Message #4 - Posted 2008/09/12 - Norm

Previously, nospam wrote:

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

does the powerbook work when plugged in and battery removed? what kind of run times are you getting?

Before doing this, what is the purpose of first step?
The battery does not charge at all. No run time if unplug AC.

This started after a vacation and PB being off for extended period.

Battery percentage stays at 0%.

if it stays at 0% when charging then it's definitely gone.

Yes, stays at battery of 0% when AC plugged in.

If battery is gone, is there a "best" place to purchase a replacement?

apple might still sell them, otherwise check ebay. also, newertech has replacements if apple doesn't.

Message #5 - Posted 2008/09/12 - Norm

Previously, Claude V. Lucas wrote:

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

Battery percentage stays at 0%.

If battery is gone, is there a "best" place to purchase a replacement?

Thanks in advance.

Presuming that you are referring to the battery charge indicator.

Yes. Sorry, not very clear.

Before you spend, give this a go.

Boot it on the power supply.

Unplug the power supply, let it sit till the battery goes dead.

PB shut down immediately.

Plug the power back in and let it charge up.

Stayed at zero battery charge indicator.

This might take a few hours.

See if that recalibrates the indicator.

If it does, then you're all set.

If not, unplug it again and see hoe long it takes to die again.

I'll try again.

If you have a reasonable amount of charge time you might not need to buy a battery.

If it dies quickly then the battery is gone...

"reasonable" and "quickly" are something *you* have to decide for your situation.

Message #6 - Posted 2008/09/12 - Claude V. Lucas

Previously, Norm wrote:

Previously, nospam wrote:

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

does the powerbook work when plugged in and battery removed? what kind of run times are you getting?

Before doing this, what is the purpose of first step?
The battery does not charge at all. No run time if unplug AC.

This started after a vacation and PB being off for extended period.

Battery percentage stays at 0%.

if it stays at 0% when charging then it's definitely gone.

Yes, stays at battery of 0% when AC plugged in.

If battery is gone, is there a "best" place to purchase a replacement?

apple might still sell them, otherwise check ebay. also, newertech has replacements if apple doesn't.

Sounds like it's dead...

Google...

Message #7 - Posted 2008/09/12 - Jolly Roger

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

Battery percentage stays at 0%.

If battery is gone, is there a "best" place to purchase a replacement?

Thanks in advance.

Download and install this script onto the PowerBook:

<http://www.mitt-eget.com/software/macosx/#battery>

Then run it to see the reported voltage.

Send responses to the relevant news group rather than to me, as E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts.

JR

Message #8 - Posted 2008/09/12 - Tom Harrington

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

Battery percentage stays at 0%.

Unless the contacts are damaged or something, it's dead.

If battery is gone, is there a "best" place to purchase a replacement?

I've had good luck with replacements from Newer Technology.

Tom "Tom" Harrington
Independent Mac OS X developer since 2002
http://www.atomicbird.com/

Message #9 - Posted 2008/09/12 - nospam

Previously, Norm wrote:

does the powerbook work when plugged in and battery removed? what kind of run times are you getting?

Before doing this, what is the purpose of first step?

to make sure the powerbook works. alternately, try it with a second battery but i'm assuming you don't have a second one.

The battery does not charge at all. No run time if unplug AC.

dead battery.

This started after a vacation and PB being off for extended period.

probably just a coincidence.

Battery percentage stays at 0%.

if it stays at 0% when charging then it's definitely gone.

Yes, stays at battery of 0% when AC plugged in.

dead battery.

Message #10 - Posted 2008/09/14 - Fred McKenzie

Previously, Norm wrote:

Is there a way to determine if a PowerBook G4 Ti's battery is gone or if it is another problem?

Norm-

Have you tried resetting the Power Management Unit (PMU)? Doing that might correct a problem that prevents the PowerBook from charging the battery. For info, see:

<http://support.apple.com/kb/HT1431?viewlocale=en_US>

On the other hand, your PMU might be defective. I had similar symptoms to yours on an old PB G3 (Wallstreet). I replaced the battery, but after a few days the symptoms returned. The PMU was replaced and both batteries worked again. You might have to replace your battery just to find out if the PMU is OK or not!

Fred

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