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    Powerbook 100 Schematic or Test Point Chart? tldr ;-)

    How long did you hold down both reset+interrupt buttons for? - 15 seconds with power connected? (instructions say to have all power removed, I discovered it worked only when plugged in). I found these buttons difficult to push reliably with my fingers… The screen went from blue/black to ‘off’...
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    Powerbook 540c Resurrection

    I just made myself a ‘printer cable’ (crossover cable) with Mini-DIN8 plugs and 3m of nine-wire cable. I was delighted when it worked - my Powerbook G3 Wallstreet (9.2.1) and my Powerbook 100 (7.1) can now see each other, and read each other’s files! I must admit, I was baffled by how I shared...
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    Lithium Polymer battery for PB100 (and maybe portable)

    Yes. https://www.ebay.com/itm/313567626594?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=ZKRiHx-ITd6&sssrc=2349624&ssuid=jwBRrRLmRiO&var=&widget_ver=artemis&media=COPY
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    Lithium Polymer battery for PB100 (and maybe portable)

    Or - is this the easiest solution? - if I understand this board correctly, it takes in a voltage up to 8V, charges a single lithium cell (4.2V), and outputs a boosted voltage adjustable between 4.3V and 27V (so, that could be the ~7V required to run the PowerBook). I guess that multiple cells...
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    Lithium Polymer battery for PB100 (and maybe portable)

    Thank you for all the information and insights. I am trying to make a Powerbook 100 battery as well. I hoped that perhaps 3.2V LiFePO4 cells would be compatible with the charging voltage, but they don’t have enough voltage to run the Powerbook (which seems odd; I thought 6.4V would be enough - I...
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