Before you begin, disconnect the power adapter.
Note: This procedure also covers removal of the main battery door.
Important: Before removing the main battery, use the Macintosh Shut Down command. Otherwise, all RAM contents will be lost.
Awarning: The main battery is a NICAD battery that contains toxic materials. Send undamaged, dead batteries to Apple for recycling—do not discard dead batteries with other waste. If the battery is damaged, do not return it to Apple. Dispose of damaged batteries according to local ordinances. Review battery handling and disposal instructions in Bulletins/ Safety.
1 Slide open the battery door.
2 Using the battery door as a handle, pull out the main battery.
3 Slide the battery door completely open.
4 Pull the end tab until it releases and remove the door from the battery.
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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.