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PRAM battery rebuild [message #276679] Sun, 28 December 2014 06:30 Go to next message
Alex Santos is currently offline  Alex Santos
Messages: 58
Registered: December 2014
Karma: 0
Member
Hello

Does anyone know where I can find some reference or instruction to PRAM
battery rebuilds. My Powerbook G3s and TiBook (first gen) all have dead
PRAM batteries. For now I am interested in the G3s but if you have any
information I would appreciate it.

Kind regards

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Re: PRAM battery rebuild [message #276694 is a reply to message #276679] Sun, 28 December 2014 14:57 Go to previous messageGo to next message
Bruce Johnson is currently offline  Bruce Johnson
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Registered: August 2012
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> On Dec 28, 2014, at 4:30 AM, Alex Santos <santos.poland@gmail.com> wrote:
>
> Hello
>
> Does anyone know where I can find some reference or instruction to PRAM battery rebuilds. My Powerbook G3s and TiBook (first gen) all have dead PRAM batteries. For now I am interested in the G3s but if you have any information I would appreciate it.

Ifixit.com has good guides for these kinds of things.

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Re: PRAM battery rebuild [message #276702 is a reply to message #276694] Sun, 28 December 2014 19:24 Go to previous messageGo to next message
Andrew Kershaw is currently offline  Andrew Kershaw
Messages: 11
Registered: October 2014
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Junior Member
On Dec 28, 2014, at 12:57 PM, Bruce Johnson <johnson@pharmacy.arizona.edu> wrote:

>
>> On Dec 28, 2014, at 4:30 AM, Alex Santos <santos.poland@gmail.com> wrote:
>>
>> Hello
>>
>> Does anyone know where I can find some reference or instruction to PRAM battery rebuilds. My Powerbook G3s and TiBook (first gen) all have dead PRAM batteries. For now I am interested in the G3s but if you have any information I would appreciate it.
>
> Ifixit.com has good guides for these kinds of things.
>

I took a quick look at iFixIt earlier, and I didn’t see any obvious guide on building a PRAM battery. I did see guides on replacing the PRAM battery with another assembly, but nothing on making one yourself.

It has been a *long* time since I looked, but ISTR that the PRAM batteries in Wallstreets were just a bunch of series wired VL2330 lithium-ion cells that were spot welded with tabs and then wrapped in plastic to hold them together. You could probably build your own for a couple bucks. These cells seem to be $10-20 each on Amazon. http://www.amazon.com/s/?ie=UTF8&keywords=vl2330 Maybe you can find them cheaper elsewhere.

First generation TiBook PRAM batteries can be bought new on Amazon for less than $15. I’d recommend just going that route and saving yourself the trouble or trying to build your own: http://www.amazon.com/NEW-Powerbook-Titanium-Replacement-bat tery/dp/B004Y6A4HU

Batteries for Lombard & Pismo: http://eshop.macsales.com/item/Newer%20Technology/PRAMPBG3LP /

I didn’t turn anything up with a search for Wallstreet PRAM batteries.

-
Andrew

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Re: PRAM battery rebuild [message #276802 is a reply to message #276702] Mon, 29 December 2014 21:39 Go to previous message
Alex Santos is currently offline  Alex Santos
Messages: 58
Registered: December 2014
Karma: 0
Member
Andrew thank you very much for taking the time to write back. I do
appreciate it.

On Monday, 29 December 2014 01:24:41 UTC+1, Andrew Kershaw wrote:
>
> On Dec 28, 2014, at 12:57 PM, Bruce Johnson <joh...@pharmacy.arizona.edu
> <javascript:>> wrote:
>
>>
>>> On Dec 28, 2014, at 4:30 AM, Alex Santos <santos...@gmail.com
> <javascript:>> wrote:
>>>
>>> Hello
>>>
>>> Does anyone know where I can find some reference or instruction to PRAM
> battery rebuilds. My Powerbook G3s and TiBook (first gen) all have dead
> PRAM batteries. For now I am interested in the G3s but if you have any
> information I would appreciate it.
>>
>> Ifixit.com has good guides for these kinds of things.
>>
>
> I took a quick look at iFixIt earlier, and I didn’t see any obvious guide
> on building a PRAM battery. I did see guides on replacing the PRAM battery
> with another assembly, but nothing on making one yourself.
>
> It has been a *long* time since I looked, but ISTR that the PRAM batteries
> in Wallstreets were just a bunch of series wired VL2330 lithium-ion cells
> that were spot welded with tabs and then wrapped in plastic to hold them
> together. You could probably build your own for a couple bucks. These
> cells seem to be $10-20 each on Amazon.
> http://www.amazon.com/s/?ie=UTF8&keywords=vl2330 Maybe you can find them
> cheaper elsewhere.
>
> First generation TiBook PRAM batteries can be bought new on Amazon for
> less than $15. I’d recommend just going that route and saving yourself the
> trouble or trying to build your own:
> http://www.amazon.com/NEW-Powerbook-Titanium-Replacement-bat tery/dp/B004Y6A4HU
>
> Batteries for Lombard & Pismo:
> http://eshop.macsales.com/item/Newer%20Technology/PRAMPBG3LP /
>
> I didn’t turn anything up with a search for Wallstreet PRAM batteries.
>
> -
> Andrew
>
>

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