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BATTERY CHARGING
One or two PowerBook 500 series Intelligent Batteries can be charged
in the PowerCenter. The batteries are charged in sequence with the
first battery inserted being charged first. Diagnostic tests are per-
formed on batteries when inserted into the PowerCenter to assure all
battery and microprocessor functions are correct for proper charging
or use of the battery. Power for charging batteries is obtained from
the Apple AC adapter (supplied with the PowerBook) or a Lind DC
Adapter 500.
Battery Charge Procedure
• Apply power to the PowerCenter from one of the recommended
power sources.
• Insert one or two Intelligent Batteries into the PowerCenter.
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Diagnostic tests are run on each battery when it is inserted.
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Tests on a normal battery are completed in less than ten seconds.
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The LCD display indicates the percent of charge in the battery.
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The PowerCenter will not charge a battery with over 98% charge
remaining.
• The PowerCenter begins charging the first battery inserted.
• The ‘Charge’ LED comes ON to indicate the battery is charging.
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The battery charges at the same rate as in the PowerBook.
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A fully discharged battery charges in 1.5 to 2 hours.
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The charge in the battery indicated on the LCD display will
increase as charging progresses.
• At full charge, the ‘Charge ‘ LED turns OFF and the LCD display will
read 100% (see Note 1).
• The PowerCenter automatically begins charging the second battery
inserted.
• The charge cycle proceeds as described above to complete second
battery charging.
• Pulse maintenance charging maintains both batteries at full charge.
Note 1 - If the LCD display jumps to100% at the end of charge or
remains at 100% for a long period before charging is completed, this is
an indication that the battery needs calibration. The battery displays the
amount of charge it believes it contains but the display resets to 100%
when it has reached full charge. This display reset should not be
confused with calibration.
Note 2 - When the PowerCenter is connected to a PowerBook, battery
charging in the PowerCenter is delayed until the PowerBook's internal
batteries are fully charged or removed. The PowerCenter's 'Charge
LED' will blink while charging is delayed.
