MeMeMeMeMe wrote:
HYPOTHESIS
Interesting. I just noted that I was able to produce about 700 MB of photo / video data on my iPhone 4S in just a couple days in only about 50 files. This is because the iPhone 4S generates so much data with its HD video capability.
I shudder to think how long it would take to upload 700 MB of data, even using WiFi through my anemic cable modem upstream bandwidth.
I thought I had photostream turned off when I was still experiencing the battery drainage problem, but I will check to be sure, and also check to be sure that when photostream is turned off, that the phone is indeed not syncing the photos videos.
By default, the 4S is set to upload photos and videos only when attached to WiFi, but when there is a lot of data being uploaded (particularly in videos) it would be better if the phone only uploaded when actually attached to the power supply, or, say, when the battery fullness was greater than 70 %. Otherwise, those batteries are likely going to drain very fast while the phone chugs along trying to trudge through massive uploads. Apple could think about putting in a warning message when the phone is disconnected from power supply when there is a lot of syncing yet to do…
I don't think this really explains everything, since a lot of people seem to be reporting that turning off photostream doesn't help. But I'm also going to check to be sure that turning off photostream actually turns off photostream.
Well, now I've looked into it a bit, and this doesn't seem to be a likely explanation. Turns out, so far as I can tell, you can't see how many photos / videos were uploaded to iCloud by photostream by logging into the iCloud web site. On a mac, you have to open iPhoto and check your photostream from there. I just did this, and it turns out, all of the photos and videos in my photostream were taken before I wiped my iPhone and re-set it up fresh. Im still having the battery problems, and it's not because photostream is uploading videos.