I have been having battery life problems in the 6 days since I got upgraded to ICS, and I couldn't figure out why it was happening. Today, I got a data usage warning (I really like that feature!) that indicates the Mail program (not Gmail) has used 1.98 GB of data, in 6 days!!! So I think I found the culprit, but I can't figure out why it's happening or how to stop it, short of just not using the mail program. I might try to delete and re-establish the account and see if that does the trick.
I use the "Mail" app instead of the "Gmail" app but here's some things to look for:
- If you get attachment heavy email, check and see if there's attachment options in the settings. There may be a limit on what size it will download or way to stop it from downloading them automatically.
- Unfortunately since Gmail went unlmiited, they no longer display email sizes. If the android app does, use that to gauge the size if your incoming email.
- If you're syncing all lablels/folders, limit yourself to just the important ones. I do believe there is an option to choose which ones are synced.
- ^ In addition, see how far back you're syncing. It might be going all the way back to the beginning instead of, say, the last 30 or so received.
- Go to the Application Management section and see what the current size of the Gmail app is. If it iself is almost 2GB in size, it's doing a lot of excessive downloading and storing. If not, there's probably a truckload of attachments in your downloads folder (generally the default auto-save location) or there's another reason for the high amount of traffic.
Thanks for the tips, Mahlon. Here's some additional information: