Mac PRAM Battery

PRAM stands for Parameter RAM. The Parameter RAM is a portion of RAM that keeps track of things like your clock's information and control panel settings. Some settings stored in the PRAM include: settings in the Monitors control panel, the Time and Date control panel, the General Settings control panel, the AppleTalk control panel, and the Startup Disk control panel.

How to tell if your battery needs replacing:

1) The date and time are set wrong. As a test to see if the PRAM battery is dead, set the clock to the correct date and time and leave your Mac turned off for a while. If the clock is set wrong when you turn your Mac on, there is a good chance that your Mac's PRAM battery has gone dead.

2. You can't print, connect to the internet, use an external hard drive or if you're having problems with serial ports. In combination with the problem listed above, it would suggest that the PRAM battery is dead.

3. The color scheme on your Mac is wrong (starts up in B&W) and/or your monitor is set to the wrong resolution during startup. The problem may be caused by a dead PRAM battery.

4. After you turn your Mac on, nothing happens. Everything seems normal, but nothing appears on the monitor. This problem means that the PRAM battery has gone dead.

5. You Mac is more than 5 years old and it has never been replaced. All batteries go bad eventually, better to replace it or have one on hand before it goes bad!

Note : We buy batteries from a several sources so the brand pictured may not be the brand you receive.

Used on these models:

• SE/30, IIx, IIcx, IIci, IIfx, IIsi
• Mac IIvi, IIvx, Performa 600
• LC, LC II, LC III
• Performa 400 series
• Quadra 605, LC 475
• Performa 475, 476
• Centris 610, 650, 660AV
• Quadra 610,660AV,650,700,800,840AV,900,950
• PowerMac 6100, 7100, 8100
• PowerMac 7200, 7300, 7500 and 7600 series
• PowerMac 8500, 8600, 9500 and 9600 series
• PowerMac G3(Desktop, MiniTower, All-in-One)
• PowerMac G3 (Blue and White)
• PowerMac G4 (PCI Graphics)
• All iMac Models