I would think that screen curtain being on would save more battery life, as I'm sure that even when it is set to zero, display processes are still being sent to the screen, and when screen curtain is on, I'm guessing that the processes are not calculated by the processor. Glenn ----- Original Message ----- From: "Paul Hopewell" <hopew...@hopewell.org.uk> To: "mac-access" <mac-access@mac-access.net> Sent: Saturday, May 10, 2014 4:48 AM Subject: Screen curtain on iPhone
Hello, I am concerned about battery life on my ageing iPhone 3GS running the latest level of IOS 6 (IOS 7 does not work on the 3GS). I know that reducing screen brightness increases battery life. If I set screen curtain on does that have the same effect as setting screen brightness to 0? If I set brightness to say 40% and normally run with screen curtain on I can easily toggle screen curtain off to show the phone content to a sighted person. However if normally setting screen curtain on in this scenario does not improve battery life then there is no point in doing this. Instead I would have to run with screen brightness normally set to 0 and to remember to temporarily increase screen brightness to show the phone to a sighted person. Many thanks. Paul Hopewell <--- Mac Access At Mac Access Dot Net ---> To reply to this post, please address your message to mac-access@mac-access.net You can find an archive of all messages posted to the Mac-Access forum at either the list's own dedicated web archive: <http://mail.tft-bbs.co.uk/pipermail/mac-access/index.html> or at the public Mail Archive: <http://www.mail-archive.com/mac-access@mac-access.net/>. Subscribe to the list's RSS feed from: <http://www.mail-archive.com/mac-access@mac-access.net/maillist.xml> As the Mac Access Dot Net administrators, we do our very best to ensure that the Mac-Access E-Mal list remains malware, spyware, Trojan, virus and worm-free. However, this should in no way replace your own security strategy. We assume neither liability nor responsibility should something unpredictable happen. Please remember to update your membership preferences periodically by visiting the list website at: <http://mail.tft-bbs.co.uk/mailman/listinfo/mac-access/options/> <--- Mac Access At Mac Access Dot Net ---> To reply to this post, please address your message to mac-access@mac-access.net You can find an archive of all messages posted to the Mac-Access forum at either the list's own dedicated web archive: <http://mail.tft-bbs.co.uk/pipermail/mac-access/index.html> or at the public Mail Archive: <http://www.mail-archive.com/mac-access@mac-access.net/>. Subscribe to the list's RSS feed from: <http://www.mail-archive.com/mac-access@mac-access.net/maillist.xml> As the Mac Access Dot Net administrators, we do our very best to ensure that the Mac-Access E-Mal list remains malware, spyware, Trojan, virus and worm-free. However, this should in no way replace your own security strategy. We assume neither liability nor responsibility should something unpredictable happen. Please remember to update your membership preferences periodically by visiting the list website at: <http://mail.tft-bbs.co.uk/mailman/listinfo/mac-access/options/>
