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Mine is on the nighttime savings mode, and i have it on a dock all night, I dont know if that is enough to bypass the issue.After a week of use, my Bionic (with extended battery) started turning off by itself, requiring a battery pull to boot again. I don't know if this is your issue, but what solved my problem is going to Settings --> Battery and data manager --> Battery Mode and selecting the "Performance" option. Apparently the battery saving modes are buggy.
After a week of use, my Bionic (with extended battery) started turning off by itself, requiring a battery pull to boot again. I don't know if this is your issue, but what solved my problem is going to Settings --> Battery and data manager --> Battery Mode and selecting the "Performance" option. Apparently the battery saving modes are buggy.
After a week of use, my Bionic (with extended battery) started turning off by itself, requiring a battery pull to boot again. I don't know if this is your issue, but what solved my problem is going to Settings --> Battery and data manager --> Battery Mode and selecting the "Performance" option. Apparently the battery saving modes are buggy.
My phone would randomly shut off while it was sleeping and I couldn't turn it back on till i removed the battery, it happened like 2 or 3 times. Then I went to the battery mode and turned off the night time saver and put it in performance mode. I haven't had the problem since.
Mine would shut down during the day as well, and Performance mode fixed it. I can't explain it, but it did work.I notice it during the day, so I am not sure how performance mode fixes this since daytime operations in night mode should be the same as performance mode during daytime

I have the extended battery as well and I see this happen about once a week now. I notice it during the day, so I am not sure how performance mode fixes this since daytime operations in night mode should be the same as performance mode during daytime. But, it's sure worth a try. Having the phone turn off and not knowing about it really is a pain!
How's it working out?
So far it's all good. But I was only getting the problem once a week.
you guys/gals should turn on USB debugging and then attempt to follow the instructions in this thread next time you get a BSOD so you can attempt to generate a bug report for Moto
I think that the problem is more on the stock battery rather than the extended as you can see here:
Have you had a Black Screen of Death with your Bionic? - Android Forums
And it has happened again with the stock battery. I did follow the link and read the debugging process from moto as suggested above. It never created the debug file.