The PowerBook 500 series computer has 2 battery bays that are each capable of holding a single PowerBook Intelligent Battery. The PowerBook will charge the battery in the left bay completely before charging the battery in the right bay. Once a battery is completely charged, the charging circuit for that battery goes into a maintenance stage. This maintenance stage will ensure that the battery's charge stays 'topped off' thus preventing any self-discharging that may occur.
If the computer has 2 batteries installed (one in the left bay and one in the right bay), the unit will draw power from the battery in the left bay first.
Article Change History:
24 Apr 1995 - Complete update of article.
17 Feb 1995 - Minor spelling correction.
Support Information Services