75%. I really didn't think removing the sync for one of the gmail accounts would add-up to anything. This is the same percentage I got back when I tested Smooth Calendar (Just before my trip). I would expect the cost of syncing a second account to be negligible. Most of the cost would be eaten-up by the original sync.; Adding corporate sync was so expensive because it was another application syncing something. If I can add both my gmail accounts to it then perhaps I can tell if one app is more efficient than the other, but I would bet that syncing with the corporate email would still eat a bit of battery since it involves a different set of servers. All of this gets pretty academic and I am getting tired of not using my phone as I wish for fear that it will skew the results. I would be happy if I got 70% with WIFI and Bluetooth on all day. So next week I'll test those individually and then together. That will be the end of this little exercise. And for those who don't understand what I've been doing and so have suggested I do a factory reset or load Juice Defender, you really ought to read through my posts to this thread. The easy way is to click on my name to the left. I probably will do a factory reset at the end of it all just out of curiosity, and I will probably give JD a try on this phone since I did buy it for my last one, but my intent was to prove or disprove all the suggestions that were made. I intend to roll all this up next week with all I have discovered. I don't expect that what I experience is the same for everyone--there is more than one reason for high battery use. I do think something is going on with the phone's radio, though I am not so sure that problem is necessarily exposed by the battery statistics everyone has been posting. Everyone is not necessarily spending a significant portion of their day in a low signal area, and those that do probably use more battery during idle. So if you are like me, your top two changes for the most impact are turning off global (and that is best done by removing the SIM card since the settings seem to revert at times) and setting a custom battery saver to cover the times you are in low signal. I'd also recommend that you leave the phone plugged in while you're asleep.