The other day I downloaded a new app from the Market called WiSync. It purports to disable auto-sync automatically when a wifi connection is not established. I've tried this out and it seems to work pretty well. Even when you are on a wifi network you can turn the screen off and it will disconnect the wifi and thus disable auto-sync, thus maximizing your battery life.
Again if you try this out you can definitely see the difference in Watts.
I've tried power manager but it's not the same. Power manager works based on your power status, but what I was talking about was a switchable profile. There are times that the phone is not plugged in that I'd like wifi and autosync to be on (if I'm actively using it and chatting with someone on IM) and other times I'd like them to be off (I'm at work or some other quiet environment where I won't be checking my phone for email or messages).
Wifi turns off when you turn the screen off, but autosync stays on. WiSync does a good job though of disabling autosync when wifi is off.
Today I've had my phone off its charger since 8 AM. It's now 4:11 PM (CST) and with on-and-off wifi usage I'm now barely at 81% or 82% (from Watts) battery life, as anytime I have the screen off, wifi and autosync turn off.
With this usage trend I could expect around 34 hours battery life, having good usage of wifi and autosync when I want it and minimum battery usage when I don't. Not quite as good as 4 or 5 days with everything off, but certainly much better than 5 - 6 hours I was getting at first.
Does this solve the unbelievable high charges some persons had to pay when they were abroad?
do i need to enable auto-sync under Settings, Data synchronization?
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