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Re: PowerBook G4 Charging Issue

From "Sebastian P." <info@cornica.org>
Newsgroups comp.sys.mac.vintage
Subject Re: PowerBook G4 Charging Issue
Date 2026-02-06 19:36 +0100
Organization cornica.org - Quicktime archive
Message-ID <info-1D5066.19361006022026@news.individual.de> (permalink)
References <noreply-BCC621.19221302022026@news.eternal-september.org>

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In article <noreply-BCC621.19221302022026@news.eternal-september.org>,
 Asahi Lovehart <noreply@example.com> wrote:

> so, the battery in my powerbook g4 was completely dead when i got it, 
> i've been able to revive it and get it to actually hold a charge, but 
> the powerbook itself refuses to charge the battery at anything over 5mA
> 
> i know the battery itself works (and it is not the BMS limiting the 
> charging speed) as i've been able to force it to charge by connecting a 
> 12V supply to it, and it gets pretty good battery life, but the 
> powerbook itself just refuses to charge it at an actually reasonable 
> speed no matter what i try
> 
> i've reset the PMU multiple times, like i said i've forced the battery 
> to charge as much as it would let me, i've drained it to 0% after, and i 
> can't get the powerbook to charge it at over 5mA
> 
> the only idea i have left is removing the dead PRAM battery and seeing 
> if that changes something, but opening up this powerbook seems like a 
> major pain in the ass qwq

I had the exact same problem with a PowerBook back in the 2000s. Tried all the 
PRAM/PMU resets etc. to no avail. In the end, it turned out it was a faulty 
DC-in board. I replaced it using an ifixit guide and it charged again.

Of course, the question is where to get a good replacement today. Perhaps ask 
around, someone with a broken PowerBook might be willing to help.

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Thread

PowerBook G4 Charging Issue Asahi Lovehart <noreply@example.com> - 2026-02-02 19:22 +0100
  Re: PowerBook G4 Charging Issue Asahi Lovehart <noreply@example.com> - 2026-02-02 19:24 +0100
  Re: PowerBook G4 Charging Issue Your Name <YourName@YourISP.com> - 2026-02-03 10:37 +1300
    Re: PowerBook G4 Charging Issue Asahi Lovehart <noreply@example.com> - 2026-02-02 22:53 +0100
      Re: PowerBook G4 Charging Issue Your Name <YourName@YourISP.com> - 2026-02-03 12:34 +1300
  Re: PowerBook G4 Charging Issue "Sebastian P." <info@cornica.org> - 2026-02-06 19:36 +0100
    Re: PowerBook G4 Charging Issue You're kidding <thekiidder@arlen.com> - 2026-02-07 03:35 +0000
      Re: PowerBook G4 Charging Issue vintageapplemac@gmail.com (scole) - 2026-02-07 07:16 +0100

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