It happened to me twice: I turned off the phone due to low battery (@ 33%), and when I turned on the phone again the battery was dead. What gives?
Battery working while the phone is turned off?
- Thread starter sanibel
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I think fast boot uses more power when "off" than normally to keep certain processes running so it can turn on more quickly. Maybe turning off fast boot helps? Not sure..
I have noticed similar affect and assume that it isn't that the bat is being used while the phone is off but rather that the boot process takes that much power and just kills the batt
I have even varafied this by pulling the batt after turning it off and had the same effect
I have even varafied this by pulling the batt after turning it off and had the same effect
There's no way....not that I doubt you...but there's no way
Seriously though...if you guys are having batts lose 30% charge from boot up - something is wrong. I just turned off with fast boot and immediately back on...no change in batt. Turned fast boot off and powered down and on, no change (actually gauge read 2% higher after this..haha). Did a batt pull and powered back on and kept the same batt level, and then finally just did a restart.
Fast boot ON + Power Off must use battery. I don't know how fastboot works, but I can't imagine it powering on in 2-3 seconds unless processes are left working. I think it's more of an advanced standby rather than a power off with fastboot on.
Someone smarter than me please chime in!
First thing to do is to check the health of your battery. Then we could (try) to figure this thing out. ?
I noticed something similar the other day. Switched the phone off when getting on the flight. When I landed, 2 hours later, I powered it back on and about 20% of battery life disappeared.
There's no way....not that I doubt you...but there's no way
Seriously though...if you guys are having batts lose 30% charge from boot up - something is wrong. I just turned off with fast boot and immediately back on...no change in batt. Turned fast boot off and powered down and on, no change (actually gauge read 2% higher after this..haha). Did a batt pull and powered back on and kept the same batt level, and then finally just did a restart.
Fast boot ON + Power Off must use battery. I don't know how fastboot works, but I can't imagine it powering on in 2-3 seconds unless processes are left working. I think it's more of an advanced standby rather than a power off with fastboot on.
Someone smarter than me please chime in!
I'm coming from BlackBerry and I had the myTouch for the past month. While getting used to the new platform, I noticed 1 difference that bothered me: the option to automatically boot up and turn off the android at a set hour, like BB and Nokia does. While searching the forums on the topic, I see that the mainstream concept is that BB does not turn off completly when you shhut it down, and the android does, hence you cannot use an app to wake up the phone.
My 2 cents:
With Fast Boot enabled, myTouch needs 10-15 sec to boot up, the boot screen starts with "m" myTouch logo and all my apps ar ready to go.
Without Fast Boot enabled, it needs 40-45 sec to boot up, the boot screen starts with "T-Mobile myTouch" logo, then passes to "m" logo, then you get the message "prepairing SD card" and then the apps are loading.
So, clearly Fast Boot does not let the phone to shut down completly. Plus, we have the option to Restart, underneath it sais "Close all apps and restart phone", another hint.
That being said, why can't we have a option in OS to shutdown and power up the phone at certain time? Or at least an app that stays in a dorment state?
Anybody else has the same opinion?
Kevin OQuinn
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Not sure if you will find something like that. Fastboot isn't an android feature. It's a myTouch 4G feature.
It's basically hibernation for the phone, so technically it's not a real reboot.
Sent from my myTouch 4G
Well then, this means we have to find the developer who's willing to create such application for us, the myTouch users. And if we can get that, I bet a lot of other android phone makers will follow trend.
Kevin OQuinn
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Reboot manager / widget
Find it in the market. Might be what you're looking for.
Sent from my myTouch 4G
Find it in the market. Might be what you're looking for.
Sent from my myTouch 4G
Not quite what I was talking about. In the app you pointing to, after the scheduled power off you need to turn the power on manualy. Since it's not native in OS like on RIM's, I was looking for an app like AutoWIFI, which runs in the background, but to be able to set "handheld power off at xx.xxh" and "handheld power on at yy.yyh". One more thing, when you look at the description under "Fast boot" option, it reads "Turn off to use some Market apps". Looks like they already thought about letting the devs to put some background running apps to mess with the feature.
Kevin OQuinn
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Yeah I did notice that, too, and honestly I didn't try the app i linked to, I just saw it and it sounded close to what you wanted.
I think the "turn off to use some market apps" means anything that would require a real reboot. For example ROM Manager. It requires to be able to reboot into recovery. Fast boot wouldn't allow this. Same thing with other apps that would do similar things.
Agreed - though I'm not sure what apps it doesn't close out of entirely... because I've tested this after noticing the warning of losing unsaved data when a "restart" is performed. I started editing a sheet in office....and turned off/on via fastboot - and all my unsaved data was erased.
Interesting conversation!
Yet, my battery-life sucks to no end. It's a new phone/battery. Oh hum...
Yet, my battery-life sucks to no end. It's a new phone/battery. Oh hum...
fatboy97
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I found it interesting that my battery life was not very good on a plane trip when my phone was in airplane mode... then on my next trip I put it in airplane mode, rebooted, turned it off before we took off, used it for a couple hours (playing games - Angry Birds addict), then noticed after the flight that I actually had 80% battery life... makes me think there are things running in the background.
Just a thought, maybe putting your device in Airplane mode, rebooting, then turning it off might get you better battery life if you have to turn it off... or at least it worth a try!!!
Just a thought, maybe putting your device in Airplane mode, rebooting, then turning it off might get you better battery life if you have to turn it off... or at least it worth a try!!!
Kevin OQuinn
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Umm a little more detail would help us diagnose. How long does it last? What kind of usage are we talking about?
Kevin OQuinn
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You basically turned off all the radios and then rebooted, which closed all the apps you had open. Nothing was pulling data and no apps were running. You should get amazing battery life in those kinds of settings.
Regular usage, I suppose. I turn off Wi-Fi and GPS when I do not need them. Lately though, as I posted at the beginning of this thread -- as I was getting maybe 8 hours worth of battery-life, I decided to test my phone and twice I turned it off overnight with 30% battery juice left. To my dismay, when I tried turning it back on in the morning there was zip-a-de-dooda battery left. I'm scratching my head.
Edit. More specifically (Menu >>> Settings >>> About Phone >>> Battery >>> Battery use):
Display: 68%
Android OS: 14%
Android Sys: 9%
Media: 3%
SwiftKey: 2%
Call standby: 2%
Launcher Pro Plus: 2%
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Kevin OQuinn
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Get battery snap from the market. It's a lot more detailed. See what that says.
It is weird when turned off it drains that much. Maybe someone with a little more technical knowledge will see this and chime in.
Sent from my myTouch 4G
It is weird when turned off it drains that much. Maybe someone with a little more technical knowledge will see this and chime in.
Sent from my myTouch 4G
I find it odd that OS takes 14%, mine never went over 6%. And your Sys takes 9%, mine only 2%. It has to be something wrong with the phone. I would replace the phone.
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