Apple Says That Wi-fi Sync Occurs When The iOS Device Is Plugged In To Power

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Battery life with my iPhone 4S was very poor, and I finally discovered why: I'm using a battery extender case. The problem is that the phone considers that the case is a source of AC power, so if have iTunes Wi-Fi sync on - which only operates when your phone is plugged in - you'll be syncing more than you might expect, since your phone is technically plugged in.

The solution is to either turn off Wi-Fi sync, or use an external battery pack that has an on-off switch so that you can control when it is actually sending current to the phone.

[KIRKMC ADDS: I guess this makes sense. Apple says that Wi-Fi sync occurs when "The iOS device is plugged in to power." But this should only occur if two other conditions are met: "iTunes is open on the computer," and "The iOS device and the computer are on the same Wi-Fi network." So I would think that if you're not on the same network as your Mac, then nothing should hap...

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