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Mac Fallout Shelter
Apple's Secret Battery Reset Utility for WallStreet and Clamshell iBooks
- 2006.07.05 - Tip Jar
If you're the owner of a PowerBook G3 Series (a.k.a. WallStreet) or a clamshell iBook and have problems with your battery life or charging your battery, you're in luck. Apple has a program named Battery Reset 2.0, and it resets the microprocessor inside your battery so that it will allow the battery to charge again.
The PMU (Power Management Unit) inside the battery is what tells it if it needs more power and how much charge is left. Charging and uncharging it causes a memory effect affecting the PMU thinking it doesn't have a charge. This application resets the PMU and only works on the models listed below.
Requirements
- Any PowerBook G3 Series like M4753 and M5343 ("WallStreet") or clamshell iBook M2453
- Mac OS 8.1 and higher (sorry, no classic mode or OS X)
Instructions
Download and install Battery Reset 2.0 from Apple's page. Then restart your computer and ensure you have a battery inside your 'Book and it has power from a AC adapter.
Open Battery Reset and verify that you have power from an AC adapter, then click OK. Then click reset to clear the PMU memory in the battery. Then it will tell you to eject the battery and reinsert it.
After that, you will see the battery start charging. Leave it charging until it gets to 100%, and you're all done.
This little program doesn't work with the Pismo or any other 'Book out there, because it's unique to the PMU of the PowerBook G3 series. It saved be from buying a new battery more than once, and it works great for those old free batteries you sometimes find in surplus stores.
I can't guarantee it will work every time, and please read all
the warnings Apple has on their site. Also, don't try to take your
battery apart, because it can harm you, and please recycle your
dead batteries - don't throw them in the trash.
If you find Joe's articles helpful, please consider making a donation to his tip jar.
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Links for the Day
- Mac of the Day: 17" iMac G4/800 MHz, July 2002 - The iMac 'grows up' with a 17" 1440 x 900 display.
- Group of the Day: LisaList supports Lisa users.
- November 8 in LEM history: 99: OS 9: I think I like it - 01: The simplified Mac life - Soured on Windows - Flea market Mac - 02: Little room for improvement in new 'Books - Combo drive upgrade for iceBooks - 04: Re-Porter - 05: Fix the old iMac or buy a Mac mini? - Apple's Copland project - 06: MacBook Core 2 - MacBook value equation - Cheap is as cheap does - 07: Problems with Classic mode in Tiger - The G4 Power Mac that won't run Leopard
- Support Low End Mac
Recent Content on Low End Mac
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- More links in our archive.
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