I understand this is a sensitive subject to bring up, as there are 10 battery threads popping up each day.
But I think I have an unusual battery problem...
My Galaxy Nexus eats pretty much the same amount of juice whether it's powered on or completely powered off, and I get about 8h out of my batteries.
I have 3 batteries, and all of them give me about the same battery time.
I just did a short test:
1. Charge battery in cradle to full.
2. Put the fully charged battery into the phone.
3. Power on phone, and check battery - 99%
4. Power off.
5. Power on the phone 30 min later, and the battery is down to 91%
Can anyone out there give me a hint as to what can possibly drain my battery when the phone is powered off?
pejan said:
I understand this is a sensitive subject to bring up, as there are 10 battery threads popping up each day.
But I think I have an unusual battery problem...
My Galaxy Nexus eats pretty much the same amount of juice whether it's powered on or completely powered off, and I get about 8h out of my batteries.
I have 3 batteries, and all of them give me about the same battery time.
I just did a short test:
1. Charge battery in cradle to full.
2. Put the fully charged battery into the phone.
3. Power on phone, and check battery - 99%
4. Power off.
5. Power on the phone 30 min later, and the battery is down to 91%
Can anyone out there give me a hint as to what can possibly drain my battery when the phone is powered off?
Click to expand...
Click to collapse
your batterstats can be off a little, or your 3 batteries are bad.
pejan said:
I understand this is a sensitive subject to bring up, as there are 10 battery threads popping up each day.
But I think I have an unusual battery problem...
My Galaxy Nexus eats pretty much the same amount of juice whether it's powered on or completely powered off, and I get about 8h out of my batteries.
I have 3 batteries, and all of them give me about the same battery time.
I just did a short test:
1. Charge battery in cradle to full.
2. Put the fully charged battery into the phone.
3. Power on phone, and check battery - 99%
4. Power off.
5. Power on the phone 30 min later, and the battery is down to 91%
Can anyone out there give me a hint as to what can possibly drain my battery when the phone is powered off?
Click to expand...
Click to collapse
If your phone is draining a significant amount of battery over a matter of several hours....say...20-30% or more during an eight hour period of being turned off, then something is wrong with your phone or batteries (less likely with all three).
I suppose it's possible that all 3 batteries are bad, but I find it unlikely as I didn't buy them at the same time.
I have tried to reset the battery stats from the CWM recovery menu, but I read earlier today that resetting the battery stats does not influence battery time.
8h, then the phone shuts off.
Or leaving the phone powered off for about the same time, I can't power it on as the battery is completely drained.
Once your battery is fully charged it will stop charging the phone but continue to display that it's "charged" until it drops below 90%.
After you restart the phone it will display the current charge.
Sent from my Galaxy Nexus using xda premium
El Daddy said:
Once your battery is fully charged it will stop charging the phone but continue to display that it's "charged" until it drops below 90%.
After you restart the phone it will display the current charge.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
His batteries die when the phone is off. Did you even read the thread?
Sent from my GT-I9300 using Tapatalk 2
joshnichols189 said:
His batteries die when the phone is off. Did you even read the thread?
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Yes I did read his post. I wrote what I thought was happening. It has been a common thing people have been confused about on android since day one.
In other news... You sure love your condescending replies don't you?
Sent from my Xoom using xda premium
El Daddy said:
Yes I did read his post. I wrote what I thought was happening. It has been a common thing people have been confused about on android since day one.
In other news... You sure love your condescending replies don't you?
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
When your battery dies when it is off it is not doing what you are describing.
Implying you didn't read.
Sent from my GT-I9300 using Tapatalk 2
El Daddy said:
Once your battery is fully charged it will stop charging the phone but continue to display that it's "charged" until it drops below 90%.
After you restart the phone it will display the current charge.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Fyi that was only true on previous nexus like the nexus one. The gnex driver does not work this way anymore.
Might be a rouge app. Post a picture of your battery stats.
Swyped on my CM9 Galaxy Nexus
The other question is if the problem is a new one or something that's been going on since the phone was new?
He said even if his phone is off.
All these points to hardware issue.
Sent from my Galaxy Nexus using XDA
It is weird that the batteries drain when the phone is off.
Heck, even with only display off you should get even longer battery life.
But.... eight hours of battery life per day for the Gnex sounds "Normal" and "Right" to me!
If all three batteries are the same, than you should check the next logical step. Bigger Batteries.
Here is one from Amazon...
"Seidio BACY38SSGNLN-BK Innocell 3800mAh Super Extended Life Battery"
Hardware issue with the phone.
There is no way you should be draining a charged cell in 8 hours.
..this might be silly...but have you tried charging the batteries in the phone itself? (sounds like you charge them externally only)
defective hardware
I agree that it is probably defective hardware.
When a device is powered off, the battery should drain very slowly.
It might still be helpful if we could see a picture of your battery stats.
Here is mine, and you can see my screen is taking most of the battery life.
Which is because I have it set for max brightness.
Related
I have 2 extended batteries, one is 2200mAh and the other one is 2400mAh. They both drain very fast unless they are charged using an external charger. I was just wondering if anyone else was having draining issues as well.
XDA app on EVO 4G
shonmac11 said:
I have 2 extended batteries, one is 2200mAh and the other one is 2400mAh. They both drain very fast unless they are charged using an external charger. I was just wondering if anyone else was having draining issues as well.
XDA app on EVO 4G
Click to expand...
Click to collapse
I personally believe that the algorithm used to determine charge capacity is inaccurate. I have a 3500 mah battery and I have to go through a series of charging maneuvers to get it to charge completely. Once it is charged fully, the battery life is outstanding. But if I simply disconnect when the LED turned green, without my maneuvering, it "appears" to drain fairly quickly.
Posting & replying via the XDA Premium app
dougjamal said:
I personally believe that the algorithm used to determine charge capacity is inaccurate. I have a 3500 mah battery and I have to go through a series of charging maneuvers to get it to charge completely. Once it is charged fully, the battery life is outstanding. But if I simply disconnect when the LED turned green, without my maneuvering, it "appears" to drain fairly quickly.
Posting & replying via the XDA Premium app
Click to expand...
Click to collapse
I have the same exact problem. Do you think an update in the firmware could possibly fix this problem if it were brought to HTC/Sprint's attention
XDA app on EVO 4G
shonmac11 said:
I have the same exact problem. Do you think an update in the firmware could possibly fix this problem if it were brought to HTC/Sprint's attention
XDA app on EVO 4G
Click to expand...
Click to collapse
It would need to be more than 1 person complaining to get that kind of result. id by chance you're on PRL&NV 1.90, try downgrading to 1.77, as many users see better battery life on 1.77 over 1.90.
teh roxxorz said:
It would need to be more than 1 person complaining to get that kind of result. id by chance you're on PRL&NV 1.90, try downgrading to 1.77, as many users see better battery life on 1.77 over 1.90.
Click to expand...
Click to collapse
I don't know how to do that and I'm not rooted
XDA app on EVO 4G
If the battery drain you see is the INITIAL drain this is to be expected. Your phone will drop to about 92% or so in the first 10 minutes. After that it should be smooth sailing
(if this is not what you're talking about, disregard this comment haha)
dougjamal said:
I have a 3500 mah battery and I have to go through a series of charging maneuvers to get it to charge completely.
Click to expand...
Click to collapse
Can you define maneuvers?
I have a 3500 mah battery too. I usually leave it on the charger for a good 90-120 minutes after the green light is lit. Once the waveform in the batt monitor widget has stabilized to one resembling a sawtooth wave (/\/\/\/\/\/) with identical amplitudes, I consider it done. I followup by shutting the phone down, waiting til the amber light is green again, then unplugging/booting up.
Depending on the amount of use during the previous off charger time, rebooting it keeps the os from slowing down.
Greenfieldan said:
If the battery drain you see is the INITIAL drain this is to be expected. Your phone will drop to about 92% or so in the first 10 minutes. After that it should be smooth sailing
(if this is not what you're talking about, disregard this comment haha)
Click to expand...
Click to collapse
That's what happens but not around 90% its more around 70% then it last for about 8 hours
XDA app on EVO 4G
I have a 3000mah battery and I use battery snap to monitor volts and remaining time left on battery. The battery status could say 100% but I look at the volts. If it says 100% but only 3.991 Volts for example then I know my battery isn't fully charged and within 10min it will be at 88% . But when my volts say 4.204 volts then I know it's truly at 100% and battery life is great . So I suggest check the voltage before unplugging.
Sent from my PC36100 using XDA App
What do you mean manuvering
?
Sent from my Desire HD using XDA Premium App
ive read lots of threads about the battery on the evo, its natural for it to drop from 100% to 90% within the first 10 min, something about the evo not charging the battery fully to help preserve the battery or something, there is some steps you can do to charge the abttery fully, but that invloves turning it off, plugging, unplugging, etc... personally i use an external battery charger, and 2 batteries, it seems to charge the battery better, and it doesnt seem to drop that 10% so quickly, it still drops faster then it should, but it seems to stick a little longer, but after it drops that 10% it stabalizes and drops a lot slower, u can pickup batteries and chargers cheap
My phone seems to be using 2% battery every 15 minutes on standby, worse when its on.
When I check what is running, it says Android OS 50%...... what can I do? I usually charge my phone three times a day.
Sent from my Galaxy Nexus using xda premium
I use a variety of apps to check what is going on with my phone.
Watchdog - monitors apps for excessive cpu usage
Cpu spy - see how long your phone stays at each frequency, but more importantly in deep sleep.
Battery monitor widget - monitors battery usage
System tuner pro - get detailed analysis of a recorded system usage.
Also, when in battery usage, I click android os to see how long it has kept your phone awake. Have you made any changes to your phone? Installed a custom ROM?
Sent from my Galaxy Nexus using xda premium
Also...give it a few days of charge-ups. It really does make a difference.
FWIW, with moderate use, my Droid Charge 4G does about 10-15% every hour. So I don't even think 8%/hr is that bad... :/
no changes to the phone, its all stock. Any benefits moving to a custom ROM on the nexus?
I've had the phone for two weeks, battery has deteriorated. Now charge it three times a day.
Sent from my Galaxy Nexus using xda premium
Crazy CS said:
no changes to the phone, its all stock. Any benefits moving to a custom ROM on the nexus?
I've had the phone for two weeks, battery has deteriorated. Now charge it three times a day.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
You probably never calibrated it properly to begin with. Charge to 100% > unplug > wipe batterystats.bin > let the battery drain completely until the phone powers off. Then charge it continuously over night and in the morning unplug and let the phone drain completely until it powers off.
I am a pretty heavy user as I text literally every 2 minutes all day (girlfriend ) and I manage to get 20-25 hours easily.
I also drain my battery out completely every day for good measure
Charging in between screws up your calibration, try not to charge unless you are below 15%. And do not disconnect it until it is fully charged (98-100%).
Note: I've also noticed wifi saves you a lot more battery juice than being on 3G/4G, so keep your wifi active if you are in range
KiNG OMaR said:
I also drain my battery out completely every day for good measure
Charging in between screws up your calibration, try not to charge unless you are below 15%. And do not disconnect it until it is fully charged (98-100%).
Click to expand...
Click to collapse
This is just not accurate for Lithium Ion batteries, which have no cell memory and gain more from frequent shallow charges than deep charges.
krohnjw said:
This is just not accurate for Lithium Ion batteries, which have no cell memory and gain more from frequent shallow charges than deep charges.
Click to expand...
Click to collapse
Not to mention draining a Li-ion past 5% can shorten the life of the battery.
Further Li-ion's have a lifespan measured in cycles. You get about 500 cycles on a typical Li-ion. A cycle is a drain and charge. If you use 50% of the charge and then recharge to 100% you only use half a cycle. By needlessly draining the battery you are using up limited cycles reducing the life span of the battery.
While I'm sure android's calibration needs to know the upper and lower boundaries of a charge I'm certain it would be smart enough to handle charges when the battery isn't completely drained. Most battery calibrations work this way. Every once in a while you need to charge to 100% drain to 5% and recharge without using to 100%
Wheres battery stats.bin located?
Sent from my Galaxy Nexus using xda premium
Crazy CS said:
Wheres battery stats.bin located?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Clockwork Recovery -> Advanced.
.. file is in /data/system i believe
its probably a bad app working with ICS.
Use watchdog and it will tell you.
Check your widgets that they aren't constantly refreshing.
My phone just started to do this about a week ago.
I tried reflashing, wiping cache/data, factory reset- nothing.
Whenever I charge, it will either charge significantly slow, or say charging but the percentage just goes down as if it wasn't even charging in the first place.
So I powered off for the entire night, (8-9 hours) and it will say fully charged. And I keep it connected to the charger but when I take a look at the phone again about 15 min later it reads 83% battery and charging.
I was really annoyed so I just left my phone on the charger again while I took a power nap (1-2 Hours) and after that I take a look and now it reads 68%.
The other day I saw it was fully charged so I took it off the charger and went on with my day. After, not even about 8 hours, it was already 10%.
It's like it only charges normally when the phone is shut off. Do I just need to replace the battery? Or is it something with the phone that drains the battery so quickly? I've already ordered a replacement extended battery off of Amazon just in case.
Most likely your battery. Go into battery stats and see whats apps are having high usage. Or download Gsam.
Sent from my SAMSUNG-SGH-I727 using xda premium
Im pretty sure its the battery now, the stats are normal and it doesn't seem like one process is hogging all the cpu. Can't wait for my extended battery next week, i cant last a week more with this annoying battery issue. Any suggestions for now?
arthurgreeeen said:
Im pretty sure its the battery now, the stats are normal and it doesn't seem like one process is hogging all the cpu. Can't wait for my extended battery next week, i cant last a week more with this annoying battery issue. Any suggestions for now?
Click to expand...
Click to collapse
Keep it off unless you really need it? Also are u rooted or on stock?
Sent from my SAMSUNG-SGH-I727 using xda premium
-Does keeping the phone plugged in via USB (when battery is at 100%) decrease battery life?
-Approximately how long should the battery last if the phone idles? If the screen is on 24/7?
-Are these batteries any good compared to the stock one?
IamaznX said:
-Does keeping the phone plugged in via USB (when battery is at 100%) decrease battery life?
-Approximately how long should the battery last if the phone idles? If the screen is on 24/7?
-Are these batteries any good compared to the stock one?
Click to expand...
Click to collapse
1.) Plugging in the phone while charged does decrease the battery life as you can only charge a battery for lets say 1000 cycles or so.
2.) Battery life depends on how long you use your phone, your ROM so I couldn't say. But my phone with the screen on lasts about 8 hours (SGH-T989)
3.) Check the reviews, it has five stars so I would assume that the battery is pretty good.
nivekx9 said:
1.) Plugging in the phone while charged does decrease the battery life as you can only charge a battery for lets say 1000 cycles or so.
2.) Battery life depends on how long you use your phone, your ROM so I couldn't say. But my phone with the screen on lasts about 8 hours (SGH-T989)
3.) Check the reviews, it has five stars so I would assume that the battery is pretty good.
Click to expand...
Click to collapse
Is losing about 30% battery life overnight (about 7 hours) with the screen off normal?
IamaznX said:
Is losing about 30% battery life overnight (about 7 hours) with the screen off normal?
Click to expand...
Click to collapse
Ehh I wouldn't think so...unless something is waking it up every now and then like a app or something...I normally loose about 10% if that if I let it sit over night
Sent from my SAMSUNG-SGH-T989 using xda premium
IamaznX said:
Is losing about 30% battery life overnight (about 7 hours) with the screen off normal?
Click to expand...
Click to collapse
Not at all. I would use a battery monitor app to see what's draining the battery because that's very excessive drainage.
I can't imagine how much it drains when you're actually using it...
what rom/kernel are you using?
I agree with what others here have said, but just to add a little something, I heard that for the best battery "life" its best to try and keep it between 20% to 90%. Don't quote me, I heard it on one of those YouTube tech channels, I wonder if that is true. I always thought that it was best to completely kill the battery and then fully charge it.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
inocent3 said:
I agree with what others here have said, but just to add a little something, I heard that for the best battery "life" its best to try and keep it between 20% to 90%. Don't quote me, I heard it on one of those YouTube tech channels, I wonder if that is true. I always thought that it was best to completely kill the battery and then fully charge it.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
That's for a new battery. Only for a couple full cycles. Else it's best to charge when you hit 15-20 and charge uninterrupted to 100.
Sent from my SGH-T989
Is it safe to charging at night, if it's not, what will it do to the battery?
Customer service always tells me to charge it just for 3-4 hours, but I have difficulty with that since I get home late and I leave early, but I still manage to get a full battery without it charging overnight but I would just like to know
Sent from my SGH-M919 using xda app-developers app
kevinrubio1 said:
Is it safe to charging at night, if it's not, what will it do to the battery?
Customer service always tells me to charge it just for 3-4 hours, but I have difficulty with that since I get home late and I leave early, but I still manage to get a full battery without it charging overnight but I would just like to know
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
I do it when I can't get a full charge before bed; but I also wake up 2-3 times per night and tend to unplug it once I notice it's at 100%. I've read that once it reaches 100%, if it stays on charge for a certain amount of time it will switch to battery and drain, then charge back to 100% after a certain percentage is drained. I would say that's the case as I woke up one morning and the phone was at 92% charge and was in the process of charging. Battery info said it was charging on AC and the graph showed it went to 100% then back down.
lordcheeto03 said:
I do it when I can't get a full charge before bed; but I also wake up 2-3 times per night and tend to unplug it once I notice it's at 100%. I've read that once it reaches 100%, if it stays on charge for a certain amount of time it will switch to battery and drain, then charge back to 100% after a certain percentage is drained. I would say that's the case as I woke up one morning and the phone was at 92% charge and was in the process of charging. Battery info said it was charging on AC and the graph showed it went to 100% then back down.
Click to expand...
Click to collapse
Hmm that's weird, but from the sounds of that, I don't think it's healthy for the battery to charge for a long time
Sent from my SGH-M919 using xda app-developers app
lordcheeto03 said:
I do it when I can't get a full charge before bed; but I also wake up 2-3 times per night and tend to unplug it once I notice it's at 100%. I've read that once it reaches 100%, if it stays on charge for a certain amount of time it will switch to battery and drain, then charge back to 100% after a certain percentage is drained. I would say that's the case as I woke up one morning and the phone was at 92% charge and was in the process of charging. Battery info said it was charging on AC and the graph showed it went to 100% then back down.
Click to expand...
Click to collapse
Sounds like Google services are using your phone at night. That happens to s lot of people but can be stopped if you follow the battery life thread that skipjacks started.
Sent from my SGH-M919
lalec said:
Sounds like Google services are using your phone at night. That happens to s lot of people but can be stopped if you follow the battery life thread that skipjacks started.
Sent from my SGH-M919
Click to expand...
Click to collapse
That thread is perfect! I would use it but I need notifications to notify me but I did use it for a night! Amazing difference
Sent from my SGH-M919 using xda app-developers app
lalec said:
Sounds like Google services are using your phone at night. That happens to s lot of people but can be stopped if you follow the battery life thread that skipjacks started.
Sent from my SGH-M919
Click to expand...
Click to collapse
I do use that guide. My signal is terrible and is what drains my battery. I really don't believe that is related to any app running wild and draining my battery because from completely dead to 100% takes about 2.5-3 hours with me using it, WiFi on, brightness at 100%, etc; I can also easily get over 2 days without a charge with light use... It would be more but my lack of signal accounts for an almost 1.5% per hour idle drain. Good signal areas I'll drain less than .5% per hour with no use/app changes outside of having a strong signal.
Weird...
When your phone charges to 100%, your phone knows to stop charging, mine always stops charging when is says "reached 100%". I just leave it on the charger and it stays steady at 100 until i take it off.
It shouldn't effect the lithium ion, either.
I thought that was the special thing about lithium ion?
They don't wear down?
Idk, could be wrong.
Sent from my SPH-L720 using xda app-developers app
Overnight charging is a no no. More info here http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
I always leave it charging when I fall asleep. And if, IF I wake up in the middle of my sleep and see that it's at 100% I'll unplug it. If I don't wake-up I'll just leave it charging until I wake up. Been doing that since before I even had a smartphone and never had any problems. Then again I do switch phones every year
Sent from Flip's Galaxy S4
lordcheeto03 said:
I do use that guide. My signal is terrible and is what drains my battery. I really don't believe that is related to any app running wild and draining my battery because from completely dead to 100% takes about 2.5-3 hours with me using it, WiFi on, brightness at 100%, etc; I can also easily get over 2 days without a charge with light use... It would be more but my lack of signal accounts for an almost 1.5% per hour idle drain. Good signal areas I'll drain less than .5% per hour with no use/app changes outside of having a strong signal.
Click to expand...
Click to collapse
A bad signal will definitely drain your battery. When I know I am in an area without signal and will be there for a few hours I turn my phone's power off so I have some battery left when I need it.
Sent from my SGH-M919
I've always charged my phone at night and have never had usages with the battery.
Sent from my SGH-M919 using Tapatalk 2
Bought some cheap batteries on Amazon, I charge whenever I want, however I want (typically overnight, all night). If I ruin the battery, so be it, I can just pop it out and replace it in 5 seconds. This is the real advantage of having a removable battery.
I've always left my smartphones on the charger overnight. Seven years going and haven't had any issues. I do tend to replace my battery after 9-12 months of use though.
lordcheeto03 said:
I do it when I can't get a full charge before bed; but I also wake up 2-3 times per night and tend to unplug it once I notice it's at 100%. I've read that once it reaches 100%, if it stays on charge for a certain amount of time it will switch to battery and drain, then charge back to 100% after a certain percentage is drained. I would say that's the case as I woke up one morning and the phone was at 92% charge and was in the process of charging. Battery info said it was charging on AC and the graph showed it went to 100% then back down.
Click to expand...
Click to collapse
This sums it up. Per the article linked earlier in the thread about charging li-ion, it sounds (relatively) trivial for the device manufacturer to implement a charging cut-off after the cells reach a specific voltage level. Once the cells drop to a certain level they're safe to charge again, and the cycle starts over. I don't imagine it's great for the battery to sit on that recharge cycle, but it's not going to over-charge and become a fire hazard.
I imagine external battery chargers might be a little different. That $3 battery & charger from eBay isn't going to have the same safety regulations as a major manufacturer like Samsung.
norml said:
Overnight charging is a no no. More info here http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Click to expand...
Click to collapse
An interesting tidbit from that article.
Li-ion does not need to be fully charged, as is the case with lead acid, nor is it desirable to do so. In fact, it is better not to fully charge, because high voltages stresses the battery.
Click to expand...
Click to collapse
I'm pretty sure a $600 phone can handle any of your charging blunders. Relax kid.
We're not dealing with Nokia's anymore.
Sent from my SGH-M919 using xda app-developers app
Avoiding full charge has benefits, and some manufacturers set the charge threshold lower on purpose to prolong battery life.
Lithium-ion does not need to be fully charged; a partial charge is better.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
tikay00 said:
I'm pretty sure a $600 phone can handle any of your charging blunders. Relax kid.
We're not dealing with Nokia's anymore.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
All the other comments say not to charge over night...
Sent from my SGH-M919 using xda app-developers app
I charge mine overnight with no issues.
Sent from my TI-82 using XDA Premium
I just called Samsung and they highly recommend me to not charge it over night
Sent from my SGH-M919 using xda app-developers app
norml said:
Avoiding full charge has benefits, and some manufacturers set the charge threshold lower on purpose to prolong battery life.
Lithium-ion does not need to be fully charged; a partial charge is better.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Click to expand...
Click to collapse
I get the general concepts that the article presents, but it doesn't really address any advances in charging methodologies that newer devices could add. It reads like it was designed for 'dumb' devices such as cordless phones, rechargable power tools, etc. For instance, it says never to charge with the device powered on. Yet Windows Phones (at least my Lumia 800) won't charge with the device off...plugging it in automatically boots the phone up.
Our phones obviously have more advanced power circuitry, such as being able to hold the power button in and have the device power cycle no matter what state the phone is in, and I assume it applies to other parts of the phone as well.