Is your computer forgetting what time and day it is?
Macintosh computers contain an internal backup battery to maintain system settings, such as the date and time, when the computer is turned off . The battery may last up to five years though actual life is determined by shelf life of the battery and usage patterns of the computer. The batteries used in the Macintosh computers listed below are lithium, and are 3.6V.
When the computer does not retain PRAM settings (such as the date and time) after it has been turned off, this generally indicates a dead battery. Some Macintosh models, such as the Power Macintosh 7100 and the Quadra 605, display a black screen when the battery has failed and the computer is turned on.
We buy most of what we need for our Macs from OWC Sales, but were surprised and happy to find that they have the best price on the Internet for these 1/2 AA lithium batteries. We don't have any older Macs... we're buying them for the Renishaw tool & inspection probes on our Haas VF-4 and VF-6 vertical CNC mills. It's just another reason to like OWC Sales.
I would recommend this product to a friend!
Verified Purchase.
Jackson,
Jul, 30 2018
Reviewer:Jackson
From:Mondovi, WI
Just what older Macs need
Exactly what my older Mac needed! Replace these on older Macs before they leak due to age and ruin the motherboard!