Solved

Powerbook 540c won't run on battery

Posted on 1998-06-22
3
361 Views
Last Modified: 2009-12-16
Is there a way to get my pwerbook to operate on battery pwr again?  Operates fine on adapter, but not at all one battery power.  One battery indicates charged up okay, but when I pull the adapter cord out the screen goes dark.  Neither of the two batteries will make it run, in either battery slot, either separately or together.  Sound like a hardware problem? Could attempting to run it with one bad battery (one may be bad) have messed up some logic so that now even the good battery won't get recognized?
0
Comment
Question by:milstan
  • 3
3 Comments
 
LVL 6

Accepted Solution

by:
TheHub earned 100 total points
ID: 1536050
Zap the PRAM using the freeware, TechTool:
www.micromat.com

reset your control panels. go.

*note: make sure your battery is completely dead before trying to give it a charge. and make use of the latest Battery Recondition utility from Apple (overnite charge).
0
 
LVL 6

Expert Comment

by:TheHub
ID: 1536051
addendem:
BatteryAmnesia (1.4.0b) [180K]
http://www.macfixit.com/library/tul/BatteryAmnesia.sit.hqx

BatteryAmnesia is a utility for any PowerBook that uses a nickel-cadmium (NiCad) battery or Nickel-Hydride (NiMH) battery. Over time, these batteries are susceptible to a "memory effect", which can reduce their battery capacity. The memory effect can be cured by fully discharging the battery before recharging it. Rather than just waiting for your battery to discharge on its own (and putting up with the alert messages that appear), use BatteryAmnesia for a safe, fast and automatic deep discharge.
0
 
LVL 6

Expert Comment

by:TheHub
ID: 1536052
addendem 2:

ResetPwrMgr (no version # ) [9K]
http://www.macfixit.com/library/tul/ResetPwrMgr.sit.hqx

It seems that Apple invents a new way to reset the power manager on each of its PowerBooks. And even if there was only one way, it is not always easy to remember what it is. This utility does the job for you quick and  easy. I haven't checked it on all PowerBooks, but it works on the ones I have tried.
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Apple Mail Hyperlinks 3 28
Mac All-In-One doesn't finish booting 3 49
Apple iMac 4 95
Macbook Hard Drive Issue 23 113
This article describes in detail how to set up the iPad in the Enterprise using iPCU aka iPhone Configuration Utility.  This could also be used for the iPhone although I have not detailed out any differences. Preparation as an iPad Administrator:…
There is a security feature on iOS devices that is nearly impenetrable when it has been activated.  This article will provide some possible solutions as well as necessary steps to take to ensure you do not end up with a locked device.
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question