OK so here is the deal.
I did the battery calibration of charging to 100 and then wipe the battery stats and then fully deplete. The following day I wanted to drain it even further down so after the phone hit zero and shut down. I then plugged it into a usb just long enough to get into recovery and then immediately unplugged it from the usb (10-15 seconds.) I just left it sitting there in recovery for AN HOUR before it shut off on it's own. I am wondering why there is that much power still left in the batteries and yet the phone still shuts down? Is there a reason the phone needs to keep that much of a reserve?
Thanks!
atomb said:
OK so here is the deal.
I did the battery calibration of charging to 100 and then wipe the battery stats and then fully deplete. The following day I wanted to drain it even further down so after the phone hit zero and shut down. I then plugged it into a usb just long enough to get into recovery and then immediately unplugged it from the usb (10-15 seconds.) I just left it sitting there in recovery for AN HOUR before it shut off on it's own. I am wondering why there is that much power still left in the batteries and yet the phone still shuts down? Is there a reason the phone needs to keep that much of a reserve?
Thanks!
Click to expand...
Click to collapse
Well, draining a modern lithium ion battery completely is detrimental to it's lifespan, so... yes, there is a reason for the reserve.
Hi, I've noticed that the phone has fast boot enabled by default,which improves the boot time very much,but I have 2 questions about it:
1) when you shut down the phone, is it completely shutdown like with hibernation on PCs or is it in a sort of standby? I'm asking this because before shutting down the phone battery was on 75 percent left and now, just after the power on it is on 56 percent... I don't know if it is a matter of battery stats not yet calibrated or if battery drains overnight with phone shutdown and fast boot enabled..
2) battery usage stats are not reset upon a phone restart, so I can not see the screen on time related to my second charge, since it continues accounting time since the first boot... Is it again related to fast boot, which does not shut down completely the phone?
Do you leave fast boot enabled? Are there other cons related to it?
This is a very great phone, let's hope firmware 1.28 improves the battery life..
Sent from my HTC One X using Tapatalk
I think it depends on how you use the phone. The only time I turn my phones off is when I want to reset them to clear some software glitch or other, and since that needs a full power off, I disable fast boot. The One X still boots quickly enough without it, considering I don't do it very often.
If I was turning the phone off and back on more frequently, I might leave it enabled. I guess that's down to personal preference and usage patterns.
In terms of what fast boot does, I think it's a low power sleep mode, not full Windows-like hibernation - i.e. there is some slight power drain while the phone is off. In one of the DHD threads recently, someone had significant power drain from a rogue app even while the phone was turned off. When he disabled fast boot, the battery drain went away. This suggested to me that this app was stopping the phone from completely sleeping - but if it had been completely powered down, that wouldn't have happened. I don't know this for a fact, though, it's just a theory based on observations.
preacher65 said:
In terms of what fast boot does, I think it's a low power sleep mode, not full Windows-like hibernation - i.e. there is some slight power drain while the phone is off. In one of the DHD threads recently, someone had significant power drain from a rogue app even while the phone was turned off. When he disabled fast boot, the battery drain went away. This suggested to me that this app was stopping the phone from completely sleeping - but if it had been completely powered down, that wouldn't have happened. I don't know this for a fact, though, it's just a theory.
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Click to collapse
I may be in a similar situation, since 15 percent of battery life drain in 8 hours with phone shutdown is definitely too much.. hope firmware 1.28 will help also for this
Sent from my HTC One X using Tapatalk
Slaytanic said:
I may be in a similar situation, since 15 percent of battery life drain in 8 hours with phone shutdown is definitely too much.. hope firmware 1.28 will help also for this
Click to expand...
Click to collapse
Definitely too much - mine loses less than that overnight, and the phone shouldn't use more power when it's turned off than when it's on!
As you say, hopefully updates will fix it.
tldr: My Incredible drains battery when turned off :-/
I have an HTC Droid Incredible that I use for testing my developed apps, and for playing around with people's roms, and I have found an odd issue with it. I can charge up the battery and use it for hours and hours and it consumes what I would consider a normal amount of charge, but when I turn it off, it still consumes battery charge. I'll charge it to 100% and disconnect the charger, hold the power button and select Power Off, and when I turn it on the next day the battery is very depleted. Yesterday I did this, and this morning about 16 hours later, I turned it on to see a 23% charge. If I leave it for more than a couple days, it won't even turn on at all and I have to charge it again before I can do anything with it.
I've tested this over the past few weeks with two separate batteries (one used, one brand new), and the same thing happens with each battery. It's definitely the phone and not the battery, because I have taken the batteries out completely, waited a few days, and they stay near 100% charge.
Some history on this phone:
I got this phone from a friend in a semi-working state. I couldn't root, s-off, or really do anything with it, so I did a factory reset, messed with it for a while, and finally decided to follow the steps in this thread to "unlock,downgrade,and achieve s-off with htcDev". This has allowed me to mess with roms, etc, so I have installed a couple, and now have "inc-eng 4.1.1 RC2" installed from this thread, and this kernel: "[email protected] #64 Mon Sep 3 18:55:57 EDT 2012"
The issue at hand however was happening before I even had it in my hands, as my friend described the same thing happening to him (he did not mess with rooting, roms, etc).
BipolarMike said:
tldr: My Incredible drains battery when turned off :-/
I have an HTC Droid Incredible that I use for testing my developed apps, and for playing around with people's roms, and I have found an odd issue with it. I can charge up the battery and use it for hours and hours and it consumes what I would consider a normal amount of charge, but when I turn it off, it still consumes battery charge. I'll charge it to 100% and disconnect the charger, hold the power button and select Power Off, and when I turn it on the next day the battery is very depleted. Yesterday I did this, and this morning about 16 hours later, I turned it on to see a 23% charge. If I leave it for more than a couple days, it won't even turn on at all and I have to charge it again before I can do anything with it.
I've tested this over the past few weeks with two separate batteries (one used, one brand new), and the same thing happens with each battery. It's definitely the phone and not the battery, because I have taken the batteries out completely, waited a few days, and they stay near 100% charge.
Some history on this phone:
I got this phone from a friend in a semi-working state. I couldn't root, s-off, or really do anything with it, so I did a factory reset, messed with it for a while, and finally decided to follow the steps in this thread to "unlock,downgrade,and achieve s-off with htcDev". This has allowed me to mess with roms, etc, so I have installed a couple, and now have "inc-eng 4.1.1 RC2" installed from this thread, and this kernel: "[email protected] #64 Mon Sep 3 18:55:57 EDT 2012"
The issue at hand however was happening before I even had it in my hands, as my friend described the same thing happening to him (he did not mess with rooting, roms, etc).
Click to expand...
Click to collapse
Maybe the battery is bad... take it out of the phone at 100 and leave it overnight and see what happens life wise
Sent from my EPAD using xda app-developers app
zachf714 said:
Maybe the battery is bad... take it out of the phone at 100 and leave it overnight and see what happens life wise
Sent from my EPAD using xda app-developers app
Click to expand...
Click to collapse
Thanks, but I did test that, with both of the batteries I have. I've left them for multiple days out of the phone, and when put back in they show 95-100%.
Maybe it's not turning off all the way.
Here's another test: turn it off, remove the battery for about a minute, then put the battery back in. Turn it on the next day and look at the battery level.
Might be a ROM issue. What ROMs have you tried this with? Have you tried stock sense and CM7?
Will do, I'll post tomorrow with my results.
If you have fastboot enabled then the phone is never really off. Try charging it then pull the battery, and put it back in the phone but leave it off. Turn it on latter and see if there was any battery loss. Fastboot is like hibernation. Its possible that some app is misbehaving and trying to sync or something while its hibernating, draining the battery.
Alrighty so yesterday I charged both batteries to 100%.
Battery A stayed out of the phone on my desk.
Battery B I removed from the phone, waited 10 seconds, and put back in the phone (I did not turn it on).
This morning, the phone (with Battery B in it) would not turn on until I charged it for a few minutes, and displayed 0% charge when it finally let me turn it on with the charger connected.
This is so weird...
Also, the rom I'm using doesn't have a fastboot option that I can find.
cmlusco said:
If you have fastboot enabled then the phone is never really off. Try charging it then pull the battery, and put it back in the phone but leave it off. Turn it on latter and see if there was any battery loss. Fastboot is like hibernation. Its possible that some app is misbehaving and trying to sync or something while its hibernating, draining the battery.
Click to expand...
Click to collapse
Okay so Battery A I put into the phone at 4pm yesterday, turned it on and found it had a 73% charge. I then turned the phone off, waited a few minutes, put the battery in and left it on my desk. This morning 12 hours later, I turned it on and it has a 25% charge.
I'm so confused... if I don't turn the phone on, how are the batteries discharging? Both batteries keep their charge when left out of the phone for a prolonged period, but discharge when in a phone that hasn't been turned on. Bah! >_<
BipolarMike said:
Okay so Battery A I put into the phone at 4pm yesterday, turned it on and found it had a 73% charge. I then turned the phone off, waited a few minutes, put the battery in and left it on my desk. This morning 12 hours later, I turned it on and it has a 25% charge.
I'm so confused... if I don't turn the phone on, how are the batteries discharging? Both batteries keep their charge when left out of the phone for a prolonged period, but discharge when in a phone that hasn't been turned on. Bah! >_<
Click to expand...
Click to collapse
Mabey there is a short in your phone somewhere. Does the battery last like normal when the phone is on, or does it also die quickly?
cmlusco said:
Mabey there is a short in your phone somewhere. Does the battery last like normal when the phone is on, or does it also die quickly?
Click to expand...
Click to collapse
I'll have to test this when i get home, but I beleieve the battery discharges at a normal rate when the phone is on.
(this is not my normal phone, just one I use for testing apps, etc. so I don't use it on a regular basis)
I'll charge one of the batteries to 100% and leave it on overnight, and post my results.
BipolarMike said:
I'll have to test this when i get home, but I beleieve the battery discharges at a normal rate when the phone is on.
(this is not my normal phone, just one I use for testing apps, etc. so I don't use it on a regular basis)
I'll charge one of the batteries to 100% and leave it on overnight, and post my results.
Click to expand...
Click to collapse
Okay I left my phone on for 18 hours in airplane mode, and it drained battery SLOWER than with the battery inserted into the phone and the phone never turned on.
So weird... I don't understand.
BipolarMike said:
Okay I left my phone on for 18 hours in airplane mode, and it drained battery SLOWER than with the battery inserted into the phone and the phone never turned on.
So weird... I don't understand.
Click to expand...
Click to collapse
Very strange. I have no clue what would cause something like that.
cmlusco said:
Very strange. I have no clue what would cause something like that.
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Click to collapse
Mine drains when all the way off 2 but not that bad... I think it may be the MotherBoard keeping power to the Nand memory so it dosen't relock and keeping power to the CPU so it can be quicker on bootup
zachf714 said:
Mine drains when all the way off 2 but not that bad... I think it may be the MotherBoard keeping power to the Nand memory so it dosen't relock and keeping power to the CPU so it can be quicker on bootup
Click to expand...
Click to collapse
I'm assuming there's no way to stop it from doing this?
It's not a huge deal, as this is a test phone I use for development, but I may be eventually selling my test phones, so I try to keep them in good working order, or get them to a decent refurbished point Plus this is a weird enough phenomenon that I figured it deserved discussion.
BipolarMike said:
I'm assuming there's no way to stop it from doing this?
It's not a huge deal, as this is a test phone I use for development, but I may be eventually selling my test phones, so I try to keep them in good working order, or get them to a decent refurbished point Plus this is a weird enough phenomenon that I figured it deserved discussion.
Click to expand...
Click to collapse
There maybe no stopping it I guess because mine does it 2 but not that fast..... Oh yeah an I think this is the 1 test phone you don't sell It has 2 many good devs
I'm having a very interesting issue with my HTC One. When I power the phone completely off (ie: Hold power button, click power off), the battery still drains when left alone for a few hours. I'd except maybe a percentage or two drained when the phone first boots back up, but its kinda unacceptable that in ~12 hours the battery goes down 15+%!!
Last night, at 8:00PM EST, I turned off my One with a bit over 80% battery remaining. I even rebooted into recovery this time and hit power off to ensure that the phone wasn't doing some crazy deep-sleep hibernation junk. This morning, at 9:00AM I turned the phone back on and had 63% battery! About a 20% drain for 13 hours of completely powered-off sitting on a desk? I've attached a screenshot to further describe the issue. I'm at a loss for this one. With my usage, the phone honestly drains the same amount of power with the phone off than if I just left it on!
To add more confusion: When I first got the phone (Monday after the launch), I didn't have this problem. I'd turn the phone off with 100% once it was charged and 12 hours later turn it back on to 100%. A week or two into using the phone, I started seeing this. I thought it was something weird with Stock, and Googling suggested that the HTC One had some deep-sleep hibernation mode to make boots faster, but after installing CM10.2 I have the same issue. Even with powering the phone off from recovery!
Any ideas? Anyone else noticing this? Is my One defective? (I hope I don't need to send it back.......)
Rain724 said:
I'm having a very interesting issue with my HTC One. When I power the phone completely off (ie: Hold power button, click power off), the battery still drains when left alone for a few hours. I'd except maybe a percentage or two drained when the phone first boots back up, but its kinda unacceptable that in ~12 hours the battery goes down 15+%!!
Last night, at 8:00PM EST, I turned off my One with a bit over 80% battery remaining. I even rebooted into recovery this time and hit power off to ensure that the phone wasn't doing some crazy deep-sleep hibernation junk. This morning, at 9:00AM I turned the phone back on and had 63% battery! About a 20% drain for 13 hours of completely powered-off sitting on a desk? I've attached a screenshot to further describe the issue. I'm at a loss for this one. With my usage, the phone honestly drains the same amount of power with the phone off than if I just left it on!
To add more confusion: When I first got the phone (Monday after the launch), I didn't have this problem. I'd turn the phone off with 100% once it was charged and 12 hours later turn it back on to 100%. A week or two into using the phone, I started seeing this. I thought it was something weird with Stock, and Googling suggested that the HTC One had some deep-sleep hibernation mode to make boots faster, but after installing CM10.2 I have the same issue. Even with powering the phone off from recovery!
Any ideas? Anyone else noticing this? Is my One defective? (I hope I don't need to send it back.......)
Click to expand...
Click to collapse
You have to go into settings>power and uncheck fast boot. With this check it kinda puts the phone into hibernation mode and it never totally turns off.
My solution above is for a Sense based ROM not sure what may be causing this running a CM based ROM. Kernel maybe????
mademan420 said:
You have to go into settings>power and uncheck fast boot. With this check it kinda puts the phone into hibernation mode and it never totally turns off.
Click to expand...
Click to collapse
I did this while still on Stock; didn't change anything. Note that I'm now on CM10.2 where Fast Boot isn't a thing. Also, powering off from recovery should negate any hibernation, which I tried last night and still saw a 20% drain in 12 hours!
Rain724 said:
I did this while still on Stock; didn't change anything. Note that I'm now on CM10.2 where Fast Boot isn't a thing. Also, powering off from recovery should negate any hibernation, which I tried last night and still saw a 20% drain in 12 hours!
Click to expand...
Click to collapse
CLUELESS I don't get that kinda drain with my phone being on and untouched. It may be a defective battery.
mademan420 said:
CLUELESS I don't get that kinda drain with my phone being on and untouched. It may be a defective battery.
Click to expand...
Click to collapse
That's what I'm thinking, although what is weird is that usually batteries are either defective on day 1, or degrade over time. It's weird that in the course of a week or two I went from a seemingly perfect battery (maintained charge while powered off) to a terrible battery.
To make matters weirder: I'd expect more than terrible battery life while the phone is on, although I'm not seeing anything excessively bad. This is going to be a nightmare trying to explain to VZ, especially because I can't just tell them I've diagnosed with CM10.2 and a custom recovery. What sucks the most is I'm (more than likely) going to get a "certified like-new" phone back... ugh...
Rain724 said:
That's what I'm thinking, although what is weird is that usually batteries are either defective on day 1, or degrade over time. It's weird that in the course of a week or two I went from a seemingly perfect battery (maintained charge while powered off) to a terrible battery.
To make matters weirder: I'd expect more than terrible battery life while the phone is on, although I'm not seeing anything excessively bad. This is going to be a nightmare trying to explain to VZ, especially because I can't just tell them I've diagnosed with CM10.2 and a custom recovery. What sucks the most is I'm (more than likely) going to get a "certified like-new" phone back... ugh...
Click to expand...
Click to collapse
Yeah, I feel your pain GOOD LUCK:fingers-crossed:
I bought it used earlier this year. Been working flawlessly without a hint of problems. I turn it off at night because we still have a landline (VOIP). This morning it wouldn't turn on. I plugged in the charger (it was about 65% when I shut it down last night) and got no battery icon. Finally got it to start by holding power + vol down then releasing vol after about 30 seconds. The battery was at 42%. It normally loses nothing when off and even during the day drops only 20-30% (I'm a very light user.) Any thoughts? Can a battery just die (almost) spontaneously?
lmacmil said:
I bought it used earlier this year. Been working flawlessly without a hint of problems. I turn it off at night because we still have a landline (VOIP). This morning it wouldn't turn on. I plugged in the charger (it was about 65% when I shut it down last night) and got no battery icon. Finally got it to start by holding power + vol down then releasing vol after about 30 seconds. The battery was at 42%. It normally loses nothing when off and even during the day drops only 20-30% (I'm a very light user.) Any thoughts? Can a battery just die (almost) spontaneously?
Click to expand...
Click to collapse
Did you actually see it completely power off?
Phalanx7621 said:
Did you actually see it completely power off?
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Click to collapse
Yes. It's ok so far. Has lost only 3% in almost 4 hours. Just sent a couple texts and checked something on the internet. I think I'll leave it on tonight in airplane mode.
This has been happening for a while with mine - I've had it since it was new. I powered it off last night at 100% and it was at 1% when I turned it on this AM.
I have not had the problem since my original post. Most nights I leave it on in airplane mode and it loses a few %. Don't turn it off more than once a week and have not seen the problem turning back on.