Battery Usage When Turned Off

**BigCTM** · 03-13-2012, 08:58 AM

All of a sudden my Rezound has been using the battery when powered off. The last couple of nights I have charged to 100% and then powered down. When I turn it back on the power is around 70% and the battery usage says phone idle around 70%. Not sure why this started happening all of a sudden...I have tried uninstalling the latest apps I have installed and turning off fast boot but that did not help.

Any ideas before I do a reset?

**MrSmith317** · 03-13-2012, 09:11 AM

Someone else I was talking to said that fastboot wasn't actually turning off for them even though they unticked the box. Do you get the full boot animation when you power up? And if you're fully powering down, maybe pull out the battery..??

**laurabward** · 09-06-2012, 11:11 AM

I was told to turn off the GPS before I turned the phone off overnight but it still went down to about 15% overnight anyway, what else is there to do???

**acejavelin** · 09-06-2012, 12:48 PM

Originally Posted by laurabward

I was told to turn off the GPS before I turned the phone off overnight but it still went down to about 15% overnight anyway, what else is there to do???

I am not really sure what to say... are actually turning the phone OFF? Press and hold power to bring up the Power Button Menu, then select Power Off? Takes about a minute or for the phone to power off completely...

I have had a Rezound with ALL radios on, (GPS, BT, 4G, etc.) when powered it off, left it sit for almost 4 total days, and powered it back on with only about 10% power loss (from 100% when powered off to like 88% or 89% when powered back on).

If your device is truly OFF, then it should use almost no power at all, now if it is in Sleep mode (just momentarily press the power button to blank the screen) it will still use battery and it can be considerable if the cellular signal strength is weak. Perhaps pull the battery when you think it is completely off for a minute or so then put it back in.

**laurabward** · 09-06-2012, 12:53 PM

Yeah, totally OFF off! I thought the same thing, but yes, I am definitely hitting the Shut Down option!

**MrSmith317** · 09-06-2012, 01:02 PM

Originally Posted by laurabward

Yeah, totally OFF off! I thought the same thing, but yes, I am definitely hitting the Shut Down option!

As I asked the other person. Do you have the "fastboot" option turned on? If so then the phone is not truly off even though you shut down.

**laurabward** · 09-06-2012, 01:42 PM

I did have it on and just turned it off. So I will try again overnight tonight and see what happens this time! Thx.

**xxfallacyxx** · 09-06-2012, 02:16 PM

If stock as well, booting the phone uses a lot of battery. When turning the phone on, boot time perflock is enabled and it holds the cpu at full power in order to keep boot times down. This does consume a bit of battery power I notice.