I dont get this right, when i go to Mail Settings, i always have my "Fetch New Data" setting to "Push: OFF" and Fetch Hourly, This way to save battery life. When i click on the "advanced" button, it shows my email as Fetch, but iCloud says "PUSH". Can i turn it on to fetch to earn battery life? what differences does it make on my iCloud syncing, will it even save an extra battery life on my iPhone?