Battery Reconditioning 4 You
If you suspect a power problem, see the appropriate power supply check in the following list:
Check the Power Adapter" on page 78 Check the Battery Pack" on page 79
Check the Power Adapter
Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable. See the following figure:
q Replace the System board.
q If the problem is not corrected, see "Undetermined Problems" on page 92.
q If the voltage is not correct, go to the next step. NOTE: An audible noise from the power adapter does not always indicate a defect.
Check the Battery Pack
To check the battery charge operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
If the battery status indicator does not light up, remove the battery pack and let it return to room temperature. Re-install the battery pack.
If the charge indicator still does not light up, replace the battery pack. If the charge indicator still does not light up, replace the DC/DC charger board.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.