Battery

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Level 4

3,215 points

Battery

My G3 Powerbook has stopped recognising the battery after shutdown. It finds it again if the battery is removed and reinserted twice. Anyone think of a reason for this?

Intel iMac 20, Mac OS X (10.4.6)

Posted on Mar 5, 2007 2:25 PM

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Answer 1

jpl

Level 7

28,285 points

Mar 5, 2007 7:57 PM in response to Jim Calderwood

Jim,

Which model G3 do you have?
http://docs.info.apple.com/article.html?artnum=24604

If you have the Powerbook G3 Series Bronze Keyboard M5343 'Lombard' or the Powerbook G3 Series M4753 'Wallstreet' and are running 9.x or earlier, give Battery Reset 2.0 a try to remedy the issue.
http://docs.info.apple.com/article.html?artnum=60655

Message was edited by: jpl

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Answer 2

Jim Calderwood Author

Level 4

3,215 points

Mar 6, 2007 4:59 AM in response to jpl

Bronze Keyboard running 10.3.9

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Answer 3

jpl

Level 7

28,285 points

Mar 6, 2007 2:35 PM in response to Jim Calderwood

Jim,

A few questions...

Is the battery recognized if the power adapter remains connected during a shutdown and restart?

You may wish to test the internal rechargeable backup battery.
http://docs.info.apple.com/article.html?artnum=30580

Possibly the easiest test is to find another Lombard and Pismo, swap batteries, and see how each performs.

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Answer 4

Jim Calderwood Author

Level 4

3,215 points

Mar 7, 2007 5:55 AM in response to jpl

Testing the internal backup battery was an interesting suggestion and produces informative results. The fact that the backup battery does not run down when the power is off and the main battery does not seem to be recognised is strange.

I haven't yet found out if the batter is recognized in your other test.

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Answer 5

jpl

Level 7

28,285 points

Mar 7, 2007 7:56 AM in response to Jim Calderwood

Jim,

The internal backup battery will run down if both the main battery and power adapter are disconnected. Even though the main battery appears not to be recognized, make sure it is removed for this test.

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Answer 6

May 10, 2007 9:16 AM in response to Jim Calderwood

One thing to consider is the type of battery - non-apple logoed batteries appear not to be recognized in OS X - but work fine - especially noticible when waking from sleep - I've had this problem with 7 different Pismos, and nothing - except plugging it into the AC adapater and taking the battery out and reinserting seems to work. (This is NOT a problem when running just OS 9 - leads me to believe it's an OS X software problem).

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