As I understand it, with the computer shut down but still connected to a live power source you have a trickle of energy going in to maintain the PRAM settings. When you kill that power source, the PRAM battery kicks in to maintain the settings. The longer itĀs shut down, the more the battery drains, and itĀs not a rechargeable battery, so yes, youĀll reduce the life of the battery. Have a friend who routinely shut off her power strip after shutting off her iMac. Battery died in about 18 months. She doesnĀt do it any more.
In article 1h3gcc0.qm78so9ox8dfN%georg.schwarz@redacted.invalid, Georg Schwarz georg.schwarz@redacted.invalid wrote:
I have been told that completely cutting off the power (via a mechanical switch) to an iMac G5 during non-usage times could reduce the liftime of the build-in lithium battery. Is that true? Can I find a statement from Apple on that issue or any advice pro or against completely cutting off power?
Georg Schwarz georg.schwarz@redacted.invalid wrote:
I have been told that completely cutting off the power (via a mechanical switch) to an iMac G5 during non-usage times could reduce the liftime of the build-in lithium battery. Is that true? Can I find a statement from Apple on that issue or any advice pro or against completely cutting off power?
You don't need a statement from Apple to understand that. It's not exactly rocket science.
In article 250920051520059224%pmevans@redacted.invalid, P M Evans pmevans@redacted.invalid wrote:
As I understand it, with the computer shut down but still connected to a live power source you have a trickle of energy going in to maintain the PRAM settings. When you kill that power source, the PRAM battery kicks in to maintain the settings. The longer itĀs shut down, the more the battery drains, and itĀs not a rechargeable battery, so yes, youĀll reduce the life of the battery. Have a friend who routinely shut off her power strip after shutting off her iMac. Battery died in about 18 months. She doesnĀt do it any more.
I'll "me-too" that. My mother used to run through a battery every year until I convinced her she didn't have to switch off the power strip. And they were $15 batteries for her model.
G