If your Macintosh is forgetting preference settings or losing track of time, you need a new PRAM battery. This 4.5v battery is compatible with several Macintosh systems.

Compatibility:

• Power Macintosh and Performa 5200, 5300, 5400, 5500, 6200, 6300, 6400, and 6500 series
• Power Macintosh 4400 series
• Twentieth Anniversary Macintosh
• Macintosh 630 Family including Quadra, LC, Performa 630 series
• Macintosh LC 575, Performa 575, 577, 578 series
• Macintosh 640CD DOS

Condition: New. Old stock. Tested for 4.5v.

Warranty: Guaranteed to deliver 4.5v at the time of installation.