> I am following all of these suggestions on my iPhone4S. It is rare that I have any battery life after 8 PM, and it only comes off its charger at 9:30am. so what should I do? I want to wait for 5S for new phone. Do I just struggle and charge as I can in the car or at home? I have let it run down at least 1x a week.
> Claudia
The display screen uses a large fraction of the iPhone's power. Dimming the brightness saves battery proportionally.
The iPhone has Wifi, cellular, and Bluetooth radio receivers and transmitters, and a GPS radio receiver, all of which suck down power while they are turned on. You can save power by turning off ones you aren't using.
Some Apps -- notably 3rd-party mapping/guidance ones -- suck down a lot of power to run the GPS radio all the time, and/or to download maps continually as you move around. Killing such Apps when you aren't using them (double-tap the Home button to open the "Rapid-switching tray", then tap-and-hold on the icon until they all jiggle, and tap the icon's X).
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Jim Saklad mailto:jimdoc@icloud.com
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