Cells inside a WallStreet battery
Hi again! I've cracked mine open and there are 12 cells, type: Panasonic Lithium ion CGR17670HC I have a pdf file from Panasonic which describes these cells in detail, if anyone is interested. If anyone has a clue where I could get 24 of these (or equivalent) at a sane price, I'd be very happy! Perhaps there's a bulk discount if we club together? All the best Karl Date: Sat, 27 Sep 2003 07:32:11 -0700 Subject: Re: Wallstreet battery update From: Paul Nicholson [EMAIL PROTECTED] In-Reply-To: [EMAIL PROTECTED] Message-Id: [EMAIL PROTECTED] On Saturday, September 27, 2003, at 01:43 AM, Tekno Liber wrote: Is there anything one can do to a dead Li-Ion battery ? Well, you might be able to split it apart and put new cells in it. The cells may be standardized OEM parts. You could at least crack it open, and tell the list what kind of cells are in it. I'd also be curios to know it after you open it, can it be put back together? Paul -- Dr. K. Gensberg,Tel. (44) 121-414 5406 School of Biosciences, Fax. (44) 121-414 6840 University of Birmingham, email: [EMAIL PROTECTED] Edgbaston, Birmingham B15 2TT, England. -- G-Books is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | CDRWs on Sale! | Support Low End Mac http://lowendmac.com/lists/support.html G-Books list info: http://lowendmac.com/lists/g-books.html -- 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/g-books%40mail.maclaunch.com/ --- The Think Different Store http://www.ThinkDifferentStore.com ---
Re: Cells inside a WallStreet battery
http://www.slavin4u.com/lithium.htm That website is selling them for 8$ and some change each. I'm sure you can find them cheaper. On Saturday, Sep 27, 2003, at 11:23 US/Eastern, Dr. K. Gensberg wrote: CGR17670HC -- G-Books is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | CDRWs on Sale! | Support Low End Mac http://lowendmac.com/lists/support.html G-Books list info: http://lowendmac.com/lists/g-books.html -- 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/g-books%40mail.maclaunch.com/ --- The Think Different Store http://www.ThinkDifferentStore.com ---
Re: Cells inside a WallStreet battery
on 27/09/03 11:23, Dr. K. Gensberg at [EMAIL PROTECTED] wrote: Hi again! I've cracked mine open and there are 12 cells, type: Panasonic Lithium ion CGR17670HC I have a pdf file from Panasonic which describes these cells in detail, if anyone is interested. If anyone has a clue where I could get 24 of these (or equivalent) at a sane price, I'd be very happy! Perhaps there's a bulk discount if we club together? All the best Karl On Saturday, September 27, 2003, at 01:43 AM, Tekno Liber wrote: Is there anything one can do to a dead Li-Ion battery ? Well, you might be able to split it apart and put new cells in it. The cells may be standardized OEM parts. You could at least crack it open, and tell the list what kind of cells are in it. I'd also be curios to know it after you open it, can it be put back together? Paul Know that even if you replace the cells, that doesn't mean the battery will start working again. Smart laptop batteries, like the ones in Wallstreet, Lombard and Pismos, to name a few, have an electronic circuit board that communicates with the computer to let him know about the state of the battery. These circuits have apparently a tiny non-volatile RAM that is hard to reset. If the last information stored is about the battery being dead, then the battery won't recharge, even with new cells. I know because I did replace the cells in a Pismo battery but the battery never charged when put back in the Pismo. So, beware before forking out some hard earned cash on cells that could be useless. However, if you want to try, go for it. Maybe you and we will learn something in the process... -Laurent. -- Laurent Daudelin AIM/iChat: LaurentDaudelinhttp://nemesys.dyndns.org Logiciels Nemesys Software mailto:[EMAIL PROTECTED] Sometimes the majority only means that all the fools are on the same side. -- G-Books is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | CDRWs on Sale! | Support Low End Mac http://lowendmac.com/lists/support.html G-Books list info: http://lowendmac.com/lists/g-books.html -- 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/g-books%40mail.maclaunch.com/ --- The Think Different Store http://www.ThinkDifferentStore.com ---
Re: Cells inside a WallStreet battery
On Saturday, September 27, 2003, at 10:59 AM, Laurent Daudelin wrote: on 27/09/03 11:23, Dr. K. Gensberg at [EMAIL PROTECTED] wrote: Hi again! I've cracked mine open and there are 12 cells, type: Panasonic Lithium ion CGR17670HC I have a pdf file from Panasonic which describes these cells in detail, if anyone is interested. If anyone has a clue where I could get 24 of these (or equivalent) at a sane price, I'd be very happy! Perhaps there's a bulk discount if we club together? Search down the local Panasonic manufactures rep. It should be available from their webpage. Know that even if you replace the cells, that doesn't mean the battery will start working again. Smart laptop batteries, like the ones in Wallstreet, Lombard and Pismos, to name a few, have an electronic circuit board that communicates with the computer to let him know about the state of the battery. These circuits have apparently a tiny non-volatile RAM that is hard to reset. If the last information stored is about the battery being dead, then the battery won't recharge, even with new cells. I know because I did replace the cells in a Pismo battery but the battery never charged when put back in the Pismo. There are several manufacturers of battery control chips. Look at the numbers on the chip and tell us which one is used. (let's hope its not a custom part, an standard part marked with an in house number (Apple does this), or a specially programmed microprocessor). The chip documentation will tell how to reset it. As to whether it's easy to do is another matter, it may require a implementing a communication protocol. I don't know if these chips implement a EPROM type memory to store data non-volatile data, or if they depend on a small amount of voltage from the battery always being there to keep alive a CMOS RAM. Anyway, the chip spec will reveal those details. So, beware before forking out some hard earned cash on cells that could be useless. However, if you want to try, go for it. Maybe you and we will learn something in the process... -- G-Books is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | CDRWs on Sale! | Support Low End Mac http://lowendmac.com/lists/support.html G-Books list info: http://lowendmac.com/lists/g-books.html -- 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/g-books%40mail.maclaunch.com/ --- The Think Different Store http://www.ThinkDifferentStore.com ---
Re: Cells inside a Wallstreet battery
On Sep 27, 2003, at 7:45 PM, G-Books wrote: On Saturday, September 27, 2003, at 01:43 AM, Tekno Liber wrote: Is there anything one can do to a dead Li-Ion battery ? Well, you might be able to split it apart and put new cells in it. The cells may be standardized OEM parts. You could at least crack it open, and tell the list what kind of cells are in it. I'd also be curios to know it after you open it, can it be put back together? Paul Know that even if you replace the cells, that doesn't mean the battery will start working again. Smart laptop batteries, like the ones in Wallstreet, Lombard and Pismos, to name a few, have an electronic circuit board that communicates with the computer to let him know about the state of the battery. These circuits have apparently a tiny non-volatile RAM that is hard to reset. If the last information stored is about the battery being dead, then the battery won't recharge, even with new cells. I know because I did replace the cells in a Pismo battery but the battery never charged when put back in the Pismo. So, beware before forking out some hard earned cash on cells that could be useless. However, if you want to try, go for it. Maybe you and we will learn something in the process... I would recommend doing what I am going to do: Buy a replacement battery first. After about 6 months crack open the old battery and purchase similar cells. Then pray for another 6 months that it works and then go into 6 months of counseling. That way if the cells don't work when you first try them you are not disappointed and your insurance covers your insanity because you sought counseling before the unfortunate moment that your cells started on fire. For all of you neo-conservatives (and other similar people) out there: This was a joke. g -- Ryan Coleman SysAdmin/DBA LowEndMac.net Sick of .Mac's lack of support? Try LowEndMac.net! Emails and more starting at $12/year! http://www.lowendmac.net/accounts/ -- G-Books is sponsored by http://lowendmac.com/ and... Small Dog Electronicshttp://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | CDRWs on Sale! | Support Low End Mac http://lowendmac.com/lists/support.html G-Books list info: http://lowendmac.com/lists/g-books.html -- 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/g-books%40mail.maclaunch.com/ --- The Think Different Store http://www.ThinkDifferentStore.com ---
