dead BTI battery for PB 190/5300
The battery is dead as it is not recognized neither by the PB itself nor by a VTS charger. Mere speculation: if I take it apart with all the precautions what should I look at to see if it is broken? Is there a logic board or else? Ben -- PowerBooks is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac http://lowendmac.com/lists/support.html PowerBooks list info: http://lowendmac.com/lists/powerbooks.shtml -- AOL users, remove mailto:; Send list messages to: mailto:[EMAIL PROTECTED] To unsubscribe, email: mailto:[EMAIL PROTECTED] For digest mode, email: mailto:[EMAIL PROTECTED] Subscription questions: mailto:[EMAIL PROTECTED] Archive: http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/ Using a Mac? Free email more at Applelinks! http://www.applelinks.com
Re: dead BTI battery for PB 190/5300
I took it apart. There are 12 elements (which resemble AA batteries) connected as a parallel series (+-_+-_+- etc...). From the small logic board only 4 wires: the neg, the pos, and two yellow that connect the batteries pack to a small round magnet nested between two adjacent batteries (is it a temperature sensor?). Any help in this subject is welcome. I was really surprised to see that the content of the battery are actually 12 normal AA batteries. Provided they are normal AA batteries as they are shorter... Ben The battery is dead as it is not recognized neither by the PB itself nor by a VTS charger. Mere speculation: if I take it apart with all the precautions what should I look at to see if it is broken? Is there a logic board or else? -- PowerBooks is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac http://lowendmac.com/lists/support.html PowerBooks list info: http://lowendmac.com/lists/powerbooks.shtml -- AOL users, remove mailto:; Send list messages to: mailto:[EMAIL PROTECTED] To unsubscribe, email: mailto:[EMAIL PROTECTED] For digest mode, email: mailto:[EMAIL PROTECTED] Subscription questions: mailto:[EMAIL PROTECTED] Archive: http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/ Using a Mac? Free email more at Applelinks! http://www.applelinks.com
Re: dead BTI battery for PB 190/5300
Powerbooks and Newton's packs used AA NiMH batteries. You can even buy NiMH AA batteries with soldering tabs and refurbish the battery pack, sometimes even using better cells which will last even longer. For more on newton batteries, check out http://www.pda-soft.de he wrote a really good guide to refurbishing different Newton's batteries and some are similar to the powerbooks. Kirk Zathey On 8-Dec-04, at 12:07 PM, Beniamino Cenci Goga wrote: I took it apart. There are 12 elements (which resemble AA batteries) connected as a parallel series (+-_+-_+- etc...). From the small logic board only 4 wires: the neg, the pos, and two yellow that connect the batteries pack to a small round magnet nested between two adjacent batteries (is it a temperature sensor?). Any help in this subject is welcome. I was really surprised to see that the content of the battery are actually 12 normal AA batteries. Provided they are normal AA batteries as they are shorter... Ben The battery is dead as it is not recognized neither by the PB itself nor by a VTS charger. Mere speculation: if I take it apart with all the precautions what should I look at to see if it is broken? Is there a logic board or else? -- PowerBooks is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac http://lowendmac.com/lists/support.html PowerBooks list info: http://lowendmac.com/lists/powerbooks.shtml -- AOL users, remove mailto:; Send list messages to: mailto:[EMAIL PROTECTED] To unsubscribe, email: mailto:[EMAIL PROTECTED] For digest mode, email: mailto:[EMAIL PROTECTED] Subscription questions: mailto:[EMAIL PROTECTED] Archive: http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/ Using a Mac? Free email more at Applelinks! http://www.applelinks.com -- PowerBooks is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac http://lowendmac.com/lists/support.html PowerBooks list info: http://lowendmac.com/lists/powerbooks.shtml -- AOL users, remove mailto:; Send list messages to: mailto:[EMAIL PROTECTED] To unsubscribe, email: mailto:[EMAIL PROTECTED] For digest mode, email: mailto:[EMAIL PROTECTED] Subscription questions: mailto:[EMAIL PROTECTED] Archive: http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/ Using a Mac? Free email more at Applelinks! http://www.applelinks.com
Re: dead BTI battery for PB 190/5300
Powerbooks and Newton's packs used AA NiMH batteries. You can even buy NiMH AA batteries with soldering tabs and refurbish the battery pack, sometimes even using better cells which will last even longer. For more on newton batteries, check out http://www.pda-soft.de he wrote a really good guide to refurbishing different Newton's batteries and some are similar to the powerbooks. Hi, i refurbished a Powerbook 540c pack with modern cells. They should probably have the doubble energy then the original ones. But there is something more. The electronic of the battery seems to calculate with the resistance of the cells. They are all soldered serial and there is already a resistor. Due to this all, the Powerbook 540c doesnt recognize the real capacity of the battery. Until now i didnt find the time, but next will be to measure the resistant of an original battery and then modify the self-refurbished with an resistor. So that the refurbished one has the same reading as the original. Probably then i get more power out of it. -- +---+ | () Gruesse/regards [EMAIL PROTECTED] | | /\ Manfred Guentnerwww.serv.de.eu.org | +---+ -- PowerBooks is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac http://lowendmac.com/lists/support.html PowerBooks list info: http://lowendmac.com/lists/powerbooks.shtml -- AOL users, remove mailto:; Send list messages to: mailto:[EMAIL PROTECTED] To unsubscribe, email: mailto:[EMAIL PROTECTED] For digest mode, email: mailto:[EMAIL PROTECTED] Subscription questions: mailto:[EMAIL PROTECTED] Archive: http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/ Using a Mac? Free email more at Applelinks! http://www.applelinks.com
