OS 9 PC Emulators

Virtual PC was the main one. SoftPC started to fade out of relevancy by this time and so did hardware PC cards.

Okay.  Thanks.  The issue here is that the documentation TechKnight sent me about the battery EEPROM resetter suggests that its primary benefit was that it worked directly through the battery connectors.  i.e. you install it on a laptop and can reset that laptop's battery.

I don't think it'll work but if one could get Win 98 (or w/e) running on a PowerBook, and if - and this is the real problem - Windows can actually recognize the battery at all, it might be possible to rebuild batteries using no additional hardware.

No version of Windows will ever work on a PPC PowerBook (maybe the PPC versions of Windows NT would work, but that expects something other than Apple's OpenFirmware).

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I'm not really concerned with anything beyond trying to run that program on a powerbook.  And I don't think it'll work.  It's just a curiosity.  One that honestly I might look for a technically running but disposable powerbook to experiement with eventually.

You aren't going to run Windows 98 natively on a PowerBook, it'll be solely in emulation in VPC. I'm not sure if it can pass through battery info.

Windows NT on PPC had basically no software and was only supported on CHRP or similar IBM systems. It did support the ThinkPad 800 series, but I'm not sure about power management. Pre-2000, NT was terribad at it.

(That was what I was going for - I don't care if it's in VPC - but in VPC the battery recognition is unlikely, which is what I think you were getting at.  I don't think the software can run on PPC and anyway it's $70.)

There's no way VirtualPC will give you low-level access to Mac hardware - it's all emulated ... slowly

Well I'm not going to desolder the EEPROM and I don't want to buy separate hardware.  This costs nothing to try (effectively).  Though I basically agree with you.  I'd be completely shocked.