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Helpful answers
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Jan 3, 2014 8:50 AM in response to Rap Attackby Allan Jones,It is the internal backup battery, but replacing it is not simple. Also, new internal batteries are hard to find. You will see a lot of "used" batteries offered--somewhat like buying used chewing gum, IMHO.
You don't say which of the many PowerBook variants you have, but OWC sells new replacement backup batteries only for the 1.67ghz PBs with 17-inch monitors:
http://eshop.macsales.com/item/NewerTech/PRAMPBG417K/
Instructions for battery replacement are in these service guides:
http://www.ifixit.com/Device/PowerBook_G4_Aluminum_Series
NOTE: Apparenlty, 12-inch PowerBooks do not have internal backup batteries. You will see from these instructions that replaceing the batery--assuming you can find one--is not a trivial matter.
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Jan 4, 2014 1:39 AM in response to Allan Jonesby Rap Attack,Hi i havent ID's the model beyond Powerbook g4 as i am not a mac person but because i posted about somethign else and i need to do it will do so soon. Its a 15inch type. Will get back to you soon hopefully.
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Jan 4, 2014 4:11 AM in response to Rap Attackby Rap Attack,This is my model http://www.powerbookmedic.com/identify-mac-serial.php
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Jan 4, 2014 4:29 AM in response to Rap Attackby Rap Attack,Would this be the right battery? http://www.ifixit.com/Guide/Replacing+a+PowerBook+G4+PRAM+Battery/3662
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Jan 4, 2014 9:32 AM in response to Rap Attackby Allan Jones,That link does not show the rest of us your results, but is a great place to find out what you have.
Please rerun and tell us what the site says for description, model year, screen size, processor speed and, if available, the machine model or model identifier code. That will have the format "Powerbook4,2" as an example. Your numbers are probably different from those I used in teh example.
In the process, please don't post your serial number, just the results less the serial number.
Understand that the battery shown in the ifixit page is just the disk-shaped part. It must be resoldered (reflowed) to a sub-board after unsoldering the old battery. Getting the sub-board out is the difficult bit.
My 1gHz 17-inch G4 PowerBook has a dead internal battery and I've not had an issue as long as I keep a charge on the main battery and am at home with full-time cable internet keeps the date/time synched to Apple's time servers.
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Jan 26, 2014 7:39 AM in response to Allan Jonesby Rap Attack,Ah i understand what you said about the battery. I can't afford to keep anything on as electricity charges are too much. I did the PRAM thing someone suggested and that worked for a bit but after not booting the machine for a week we have the clock on the old time again. Its ok because i have scored another slightly newer mac but it has the same issue. Tried it on that too and same result. So have to change that battery or get someone to do it.
