Apple's line of PowerBook laptops was intended for the professional and power users. The PowerBook line includes the PowerBook 100, Duo, 500, and 5300 Series; the PowerBook 1400, 2400, 3400; the PowerBook G3, G4 Titanium, and G4 Aluminum.

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Battery not detected, what is the exact fault?

Powerbook 12-inch 867 Mhz which I got for a song. No battery, but I soon fixed that by transplanting my other powerbook's good battery into this unit. It was ok for a day but now the battery cannot be detected. It works fine if I move it back to its original unit. Where should I look at next? Everything else works except this no battery detected problem.

Update

I have replaced the DC-DC Board but it didn't fix the problem. It's unlikely the replacement board has the exact same problem. I guess the logicboard is the culprit here. Reminds me of an 800 MHz iBook I still have that works fine except that it won't charge the battery. The battery charges OK if I put it in another iBook. I've replaced the DC-In board and cable with one known to be good, but it didn't help any.

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Chosen Solution

Try resetting the PRAM on the machine. If that doesn't solve the problem you'll probably have to replace the battery connector board.

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PRAM reset didn't work. Guess it's the DC-DC board that's next. I have a donor machine, fortunately.

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Bernie will be eternally grateful.
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