#MAC POWERBOOK G4 BATTERY REPLACEMENT HOW TO#
#MAC POWERBOOK G4 BATTERY REPLACEMENT PRO#
#MAC POWERBOOK G4 BATTERY REPLACEMENT DOWNLOAD#

How to Reset your MacвЂ™s NVRAM, PRAM, and SMC, Macworld,2017.06.Battery Type: Li-ion, Battery Volt: 10.iBook Clamshell Battery Issue, eBay, 2012.02.07.AppleвЂ™s Secret Battery Reset Utility for WallStreet and Clamshell iBooks, Joe Rivera, Low End Mac, 2006.07.05.Clamshell iBook Battery Info, Applefritter forum, 2004.11.12.

#MAC POWERBOOK G4 BATTERY REPLACEMENT DOWNLOAD#

You can also use Battery Reset 2.0 from Apple, which you can download from my Dropbox account if Apple ever removes its download. And now your вЂBook will recognize the new battery and calibrate itself with a fresh start because youвЂ™ve cleared out all memory of the previous battery. Some sources recommend using Open Firmware to reset NVRAM, but Cmd-Opt-P-R should always be sufficient. Shut down your вЂBook, start it up, and hold down Cmd-Opt-P-R simultaneously until it chimes 3 or 4 times to clear out the old PRAM data. Reset the PRAM and/or NVRAM (nonvolatile RAM).Straighten out the end of a paperclip and hold the reset button down for 5-10 seconds. There is a small reset button вЂњunder the grilleвЂќ. ThereвЂ™s a two-step process to teaching your вЂBook to forget about the old battery and prepare it for the new one: Old or incorrect data in the PMU (known as SMC for System Management Controller in Intel-based Macs) can prevent your new battery from charging completely. When you replace an old battery with a new one, you should reset the PMU. Slide the memory door away from the memory compartment. Add a comment Step 2 Upper Case Remove the four Phillips screws from the memory door. On other Macs, you remove the PRAM battery, but on these вЂBooks you canвЂ™t вЂ“ and you certainly do not want to remove the PRAM capacitor. Step 1 Battery Use a coin to turn the battery locking screw 90 degrees clockwise.

If your вЂBook has a good PRAM capacitor, that can interfere with your ability to reset the Power Management Unit (PMU).

Once the PRAM capacitor has been replaced, your вЂBook should remember the time, date, and other PRAM settings unless you let the battery drain too far.

#MAC POWERBOOK G4 BATTERY REPLACEMENT PRO#

If you are not comfortable with challenging disassembly and reassembly, or if youвЂ™re not comfortable doing component-level replacement and soldering, get a pro to do it. You will need to remove the old PRAM capacitor ( this page has a good photo of it) and solder in a replacement. The part you are replacing is a 0.022F 5.5V capacitor, and iBooks can be a challenge to take apart, especially the clamshell models. Disassembling an iBook is a challenge even with the guides from iFixit, and clamshell iBooks are among the most difficult Macs to take apart and get back together successfully. This is not an expensive part, but it is a difficult project. If your iBook has a good battery and gives you the wrong date every time you turn it on, you need to replace the PRAM capacitor. Sometimes that capacitor goes bad, preventing the PRAM from getting any power at all. Instead of a PRAM battery, iBooks have a PRAM capacitor, which can hold a charge for a short while вЂ“ perhaps 20 seconds вЂ“ so you can swap out a nearly drained battery for a charged one and not lose the PRAM settings. ThatвЂ™s the biggest indicator of a dead PRAM battery in most Macs, but in iBooks it means no power is getting to the PRAM. If you remove your вЂBookвЂ™s battery or let it run out of juice, the PRAM loses its settings and your вЂBook will think itвЂ™s 1969. Instead, the parameter RAM (PRAM for short) is maintained by using the charge in the iBookвЂ™s battery.ДЇor the sake of convenience, we will use the term iBook or вЂBook to encompass the various iBook models as well as the 12вЂі PowerBook G4. Other World Computing and NewerTech have announced that they are shipping the highest capacity replacement batteries ever made for Apples PowerBook G4. Neither does the 12вЂі PowerBook G4, which is based on the iBook G4. Unlike most Macs before and since, iBooks do not have a PRAM battery. Apple made an unusual decision when it designed the original iBook, the one with the handle.

Mac powerbook g4 battery replacement