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2hours 40mins
that was how long the M5000 survived.
Conditions of test:
streaming London's Heart 106.2 over WiFi, access point in the same room, wireless settings at max power save
the phone was on, and the display was at max brightness
out of the time, 18 mins was spent talking over UMTS on speakerphone under max brightness
during the test, some activity was also done...tapping, opening menus...etc
observations: during the test, all connectivity failed at one point, (usual bug with this thing.....loses wifi, cant connect to mobile network unless flight mode is cycled or phone is reset)
if im not mistaken this happened about 40 mins into the test
I was wondering does the amount of power equal more distance on the prophet wifi? or just better speeds?
My experience tells me that it just speeds up battery drain ... nothing else
Could be wrong but never really seen any gain in setting it up on high performance!
I dont agree!
I did see a real performance boost when I chose High Performance over Battery.
Before I touched the settings my WIFI connection was being disconnected every few seconds. But after I set that higher, I noticed that the WIFI connection was not being disconnected anymore and internet came more stable/faster.
I did do a test to see the difference and going from the lowest to medium actually double the download speed and going from medium to high just gave a little bit faster but I still dont know if it improves the distance or not
i started to copy a big file from my PC's shares onto my prophet via wlan:
with lowest battery usage:
batterystatus showed 2xx mA power usage and my network adapter was uploading with ~30kb/s
with highest performance level:
batterystatus showed 5xx mA power usage and my network adapter was uploading with ~300kb/s
i could not see any difference for the distance.
for browsing the web over wlan i think the lowest level is more than enough: browsing is limited by the cpu power and a fast data connection can't replace a fast cpu / can't reduce the page-rendering times.
Is it normal that I can barely last a day on a charge with this device?
My GSM devices could go at least 2 days without charging. I don't mind charging every night, but right now it would be dead before my day is over if I don't charge it at my desk too. That can't be right?
I ran bunch of test on this before i decided to keep it. One day I set it up without anything running. from 8am to 8am the next day the battery power was still 100%. Another test I did was playing audio. it went about 6 hours and I still had 20-30% battery remaining. it was loosing a about than 10%-15% per hour.
The problem is once you go on data mode it stays there and doesn't come out when it doesn't need it anymore and that drains the battery super fast. These type of programs:
-weather check
-Windows Live (for maps and searches)
-traffic
-e-mail (if you have autocheck on)
When you see the data mode (the two arrows that replace the tower icon) appeaing go in the comm manager and disable the data mode. That's obviously not a permanent solution but until figure out how to have the programs that use the data connection to return the radio to audio mode when they are done using the data mode, you can save some power.
I hope that helps.
The Mogul's battery life is definately very sensitive to the software you have running.
When I first got mine, it would barely last me 8 hours of light usage before getting the critical battery alert.
A week or two later, after a few charge/discharge cycles and a ton of configuration/software tweaks, my battery lasts all day, and is only down to 60-70 percent when I go to plug it in at night
Just to extend on what was already said, if you have outlook set up to sync automatically, set it to 5 minutes instead of "as they arrive." This made a big difference for me.
I use BatteryStatus to monitor my battery drain, and it drains at about 30-40 mA when the screen is off and when it is on and dim, around 85-100 mA or so when nothing is really active and I am at the today screen.
From my experience, the thing that affects battery life the most is the signal quality of the phone/data service. If I'm in a location where the signal is 0 or 1 bar, then the battery will drain to 20-30 percent in about 4 hours. With a strong signal, the battery only goes down to 50% for the full day.
caxiem said:
From my experience, the thing that affects battery life the most is the signal quality of the phone/data service. If I'm in a location where the signal is 0 or 1 bar, then the battery will drain to 20-30 percent in about 4 hours. With a strong signal, the battery only goes down to 50% for the full day.
Click to expand...
Click to collapse
Bingo
It's not the PDA part that is draining it, it's the RF part.
TC1 said:
Bingo
It's not the PDA part that is draining it, it's the RF part.
Click to expand...
Click to collapse
Right, so I've established that my phones lasts more than a day just fine if I'm in good service.
But is this "normal" for a CDMA phone to do? My old GSM phones could go into "searching..." for hours at a time and still have more than 50% at the end of the day. I know CDMA phones use a little more power then their GSM counterparts, but I didn't know it was THIS bad! Or is this just a bug in the system that can be fixed in the future? Being my first CDMA device, I can't tell yet what's normal or not.
GSM and CDMA RF transceivers manage power output differently. What's ironic, is that in theory CDMA handsets are suppose to manage battery power better than their GSM counterparts, sincd CDMA tranceivers continually vary the power output to match the cell tower coverage, while GSM tranceivers power a steady-state output.
Now that's in theory.... I've read numerous ancedotal articles that have compared sibling phones (same model, but one is GSM and one is CDMA) and the GSM for whatever reason performs better in terms of battery life. I know.... doesn't make sense. Two theories have been proposed by folks, one being the actual coverage for a particular area and the other that Qualcomm just basically did a poor implementation of the CDMA design in their chipsets (which are widely used by everyone).
Wish I had a better answer, but I don't have any hard evidence at the moment to say it's definitely this or that explains the difference.
There is also a configuration issue whereby data connections are not terminated after an application is done with it. Email automatic Send/Receive being one of them. Shuting down the data connection through HTC's Comm Manager doesn't solve it either. I installed this software that allows you to manually enable/disable data connections, mapped it to button 5 and have seen my battery life almost double. This of course defeats automatic email reception though.
I have changed my battery drain from 90% a day to just 10% a day by turning off bluetooth discovery! I can leave bluetooth on all day, but by turning off discovery, it seems to save a tremendous amount of power.
jaslo1 said:
I have changed my battery drain from 90% a day to just 10% a day by turning off bluetooth discovery! I can leave bluetooth on all day, but by turning off discovery, it seems to save a tremendous amount of power.
Click to expand...
Click to collapse
How do you turn just 'Bluetooth Discovery' off and not Bluetooth? Registry?
Tenchi4U said:
How do you turn just 'Bluetooth Discovery' off and not Bluetooth? Registry?
Click to expand...
Click to collapse
start/settings/connections/bluetooth/mode/Make this device visible to other devices
This is a great thread. I always had the activesync to sync as items arrive. I bet this should help a lot. I'm going to change my weather options next. dont need constant weather updates all day long.
I would like to collect cell standby data from you. Cell standby is much too high, i have 1% per hour even under optimal conditions. Some users have much more and are satisfied when they reach 1% but i think this is too much. SGS1 and SGS2 are below 0,5%.
Can you post
time on battery,
remaing capacity in %,
cell standby in %
and calculate the consumption per hour:
(100 - "remaining capacity in %") * "cell standby in %" / 100 / "time on battery"
Sample:
time on battery = 5,5h
remaing capacity in % = 84
cell standby in % = 40
(100 - 84) * 40 / 100 / 5,5 = 1,16% per hour
//EDIT//
I build a google sheet where we can enter these information and which then calculates the average stanby drain:
https://docs.google.com/spreadsheet/ccc?key=0Ambt0PkdLr7BdEJ1alptQ2M1bFlLbm11aVdtNmtIY0E
Maybe that helps to identify those configurations without drain.
Hi,
I think this is a good idea, but it would be good to post your current ROM, Radio and Kernel plus the country and provider.
All these points could influence the cell standby. I am on 3G an have medium to good reception.
ROM Omega 5.2
Radio XLF2
Kernel Siyah 1.2.6
Country Germany
Provider O2
Standbydrain
time on battery = 4h
remaing capacity in % = 75
cell standby in % = 41
(100 - 75) * 41 / 100 / 4 = 2,56% per hour
Time on battery 6:30
stanby cell= 58%
remainig capacity=67%
ROM Foxhound 0.3
Radio XLF2
Kernel Siyah 1.2.6
Country Luxembourg
Provider Tango
(100 - 67) * 58 / 100 / 6.30 = 3,03% per hour
valerio.tosti said:
Time on battery 6:30
stanby cell= 58%
remainig capacity=67%
ROM Foxhound 0.3
Radio XLF2
Kernel Siyah 1.2.6
Country Luxembourg
Provider Tango
Click to expand...
Click to collapse
I added those values to the spreadsheet.
ok you can add
signal strenght 2-3Bars
Network type 3G/Hspda
wifi On, also when display off
---------- Post added at 04:20 PM ---------- Previous post was at 03:37 PM ----------
how is this possible that sellman makes 35 hours?
The next few days I will switch my Radio, to see if there is any considerable impact.
whaaat 42h???? Guys commeon you are killing me!!!!
valerio.tosti said:
whaaat 42h???? Guys commeon you are killing me!!!!
Click to expand...
Click to collapse
I thought the same
How unfair life can be
Cell standby seems to be
1) A modem firmware failure for those who actually have bad cell standby battery life. This seems to be caused by not entering low power mode on non active connections or switching to fast/often between the power modes.
2) The batteryprofiles.xml populates the cell idle entry with 33mA as power drain as opposed to 3mA for the S2 which has the older version of same type of hardware modem. This is absolutely retarded as the actual drain is not really that much and being reported much higher than it is.
I personally am running on 2G which is more than enough for chat, email and notifications and switch to 3G whenever I need to manually or am on Wifi. I am still on my first charge since I have gotten the phone, and I'm at around 40 hours lifetime with 4H screen time with 33% battery left. This is with around 20 reboots while flashing and testing my kernel, and playing with the phone. Over-night (8+ hours) I lose about 3%.
no cell standby issue in CM9 by the way guys
AndreiLux said:
Cell standby seems to be
1) A modem firmware failure for those who actually have bad cell standby battery life. This seems to be caused by not entering low power mode on non active connections or switching to fast/often between the power modes.
2) The batteryprofiles.xml populates the cell idle entry with 33mA as power drain as opposed to 3mA for the S2 which has the older version of same type of hardware modem. This is absolutely retarded as the actual drain is not really that much and being reported much higher than it is.
I personally am running on 2G which is more than enough for chat, email and notifications and switch to 3G whenever I need to manually or am on Wifi. I am still on my first charge since I have gotten the phone, and I'm at around 40 hours lifetime with 4H screen time with 33% battery left. This is with around 20 reboots while flashing and testing my kernel, and playing with the phone. Over-night (8+ hours) I lose about 3%.
Click to expand...
Click to collapse
So what you are saying is that it is just a miscalculation? Then the voltage would still show up correct.
Any idea where to find the battery voltage?
Sent from my GT-I9300 using XDA
mc-paulo said:
So what you are saying is that it is just a miscalculation? Then the voltage would still show up correct.
Any idea where to find the battery voltage?
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
Yes that's what I'm saying. The whole battery statistics page in terms of percentages is absolutely useless. Not only are the modem values completely ****ed but the CPU accounting is dead wrong, the values are the same for 1400-900MHz as the Galaxy S2 values for 1200-200, with all the steps below 900MHz being reported as the S2's 200MHz current consumption (55mA). You can absolutely not rely on any of that data for now as it is absolute hogwash.
What does the voltage have anything to do with it? You can't do anything with the voltage value alone, other than maybe estimate battery charge level. Use Battery Monitor Widget if you still want to see statistics.
The Voltage would show if the battery really discharges that fast or if it just is a miscalculation, as you are stating.
My phone is dead after 20hours, no matter how I am using it. The only thing that helps is Airplane mode, but that way a phone is kind off useless.
No wifi, no app and not even the screen are killing my battery. There has to be a culprit and I am guessing, as maby others are, that it's a bug in the radio.
Sent from my GT-I9300 using XDA
mc-paulo said:
The Voltage would show if the battery really discharges that fast or if it just is a miscalculation, as you are stating.
My phone is dead after 20hours, no matter how I am using it. The only thing that helps is Airplane mode, but that way a phone is kind off useless.
No wifi, no app and not even the screen are killing my battery. There has to be a culprit and I am guessing, as maby others are, that it's a bug in the radio.
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
Battery discharge of course it correct, I'm just claiming that the battery statistics and break-down is absolute nonsense. I suspect that it is fast-dormancy, try idling it on 2G/EDGE and see if it's the same.
Ah, now I am getting you.
If it was Fast Dormancy that would explain why two identical setups in two different countries, with different providers are having such different runtimes.
In 2g mode fd is disabled, if I read you right? As I am wifi areas most of the time, 3g is not that important to me. Worth the try.
Sent from my GT-I9300 using XDA
mc-paulo said:
Ah, now I am getting you.
If it was Fast Dormancy that would explain why two identical setups in two different countries, with different providers are having such different runtimes.
In 2g mode fd is disabled, if I read you right? As I am wifi areas most of the time, 3g is not that important to me. Worth the try.
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
FD doesn't exist for 2G. So yea, basically disabled.
Added my actual data and i'm surprised. No one has an acceptable power consumption for cell standy. I hope Samsung fixes the problem.
The last hours I was running on 2g only and it didn't do any good.
Experienced nearly the same amount of battery drain than before.
I will switch to another Radio, and will keep an eye on that drain.
Sent from my GT-I9300 using XDA
At night i have only 2G because in my home where the phone "sleeps" no 3G signal is available. The signal is much more worse, only 1-2 bars, but the battery consumption is even better than with 3G. In 8 hours of Standby only 2-3% battery like it was before with my SGS1. Seems to be only a 3G problem. I checked logcat, but i don't have the fast dormancy problem. I think with 1% per hour with 3G i have a very good performance but in comparison to SGS1 its worse.
Your phone has to run a whole setup, authentication and connection procedure with the antenna each time data network is cut. However when the data network is open (especially on HSPA frequencies) it drains the battery.
So FD is a 3G feature (HSPA-Versions being different extension levels) which basically tells the antenna that your phone will now disconnect the data connection but the antenna should remember him and the state of all TCP connections.
Periodically your phone will power up the data network through a very short and speedy handshake procedure which resumes the old data connection and ask the network whether any new packets have arrived. If so, it will accept and process them and keep the data connection open for new incoming/outgoing packets until it goes back to Fast Dormancy (IDLE) mode.
The network/antenna of course has to store any incoming data packets until the phone polls it so there is a measurable multi-second delay until the data is effectively received by your phone.
The exact polling frequency is defined by your phone's internal database of network operators and is e.g. for all luxembourgish network operators 5 seconds. Therere is no single 'good' value since:
- the network has to store the data. If your phone polls too slowly it might drop the data packets or even close the connection, forcing the phone to run through the full procedure again which causes huge battery drain. (This is also true if the network _SHOULD_ support FD but in reality does not)
- the incoming data packets are delayed by up to X seconds, X being the polling frequency. So you might e.g. only see incoming chat messages several seconds after them having been sent if the phone is in IDLE mode.
- too high polling frequencies put a high strain on the network (to the extend that they might refuse your mobile to reconnect for a certain timespan) and kills your battery fairly quickly.
Furthermore FD only works for incoming data packets, not outgoing ones.
If your phone sends a message, it will directly go to fully-awake 3G network until fast dormancy kicks in again after a certain idle period.
Now, basically FD is a very good solution to 3G's battery drain, however it only works if your phone does not send data and does not constanctly receive data. (Additionally of course, the FD network setup must be correctly configured with sane values... I've seen carrier-provided setups of 1 second Fast-Dormancy interval)
If you have apps which keep data connections open and constantly send/receive small amounts of data (e.g. Skype, ICQ, Msn, Facebook, ...) FD is more or less worthless for your setup and might only cause a huge battery drain.
Furthermore at least my provider (Tango, Luxembourg) sometimes shows bad cases of antenna hopping when waking up from FD which drains the battery even more.
(Antenna hopping is if the antenna tells your mobile phone to connect to an other antenna because it's overloaded or it knows that the other one has significantly more capacity available. However if not properly managed by a supervising instance, this may cause several antennas to play ping-pong with you and keep moving you to other antennas)
2G on the other hand doesn't know what FD is for a very simple reason; it uses the same frequencies for data network and voice. The latter has to be connected at all times anyway, so keeping the network connection open only causes insignificant battery drain. (As long as the device is actively sending/receiving data the battery usage will of course get higher)
So if you want your phone to be connected at all times (Chat, Push notifications, Emails, ...) you'd keep it in 2G. But due to 3G having a better KB/W ratio and being MUCH faster, you should switch when browsing the net.
There is a (paid) app for automated 3G/2G switching when the phone is idle which additionally can enable/disable Wifi when you're in range of a configured network based on it learning your exact location from signal changes of the coarse network-based location.
That app is called Juice Defender Beta (you need the 'Ultimate' donation key to unlock all the features) and so far works flawlessly on my phone.
(Additionally it can automatically dim the display below the minimum-brightness which is cool at night )
If the phone has a very high network drain in 2G too you most likely are either constantly receiving/sending data (e.g. Skype, I recommend using IM+ Pro and configuring it with Push notifications when in the background) or using an Exchange account which seems to have a battery-drain issue in Samsung stock firmwares.
Phone: Mi A1 Stock - Oreo 8.0 April update
I consistently charge the phone when battery level is around 30% to around 85%.
I recently changed ISP's and a new router was installed. It is a Huawei dual 2.4/5GHz fiber router that replaces an old Huawei single band fiber router and has 2 separate SSID's.
Since that change, my battery life has taken a significant hit and drains MUCH quicker than it used to. Where it would normally last 2-3 days, it now lasts about a day. Battery drain during screen off time is almost twice as fast as previously. For instance, I charged the phone to 90% Yesterday, less than 21 hours ago. Battery is now at 53% with only 21 minutes of SOT!
I've tried:
Staying connected to the 2.4GHz band
Staying connected to the 5GHz band
Turning off the Always On setting for WiFi that I have always had on
Nothing above seems to impact this situation in any way. If anyone has any ideas or solution for this, I would appreciate the help.
Regards,
Maybe the reason is a different transmit power and receiver sensitivity of the router. Maybe your new route requires a higher transmission energy than you old router.
In addition, some routers allow to use 2 channels in parallel, which would also mean higher energy consumption
I am assuming it is something like that. The signal strength is the same on both: full signal. The new router is considerably faster than the old one in throughput, even on the 2.4GHz band. But wow! Now I am thinking that the A2 needs a bigger battery! I really did not expect this type of hit from changing routers! Might be something for others to consider if they are planning a change.
Thanks for the response.
you updated the firmware on the router?
Duplicate post deleted
riccetto80 said:
you updated the firmware on the router?
Click to expand...
Click to collapse
As far as I can tell by Huawei's screwed up website, the router has the latest firmware. Huawei's website is NOT user friendly and it took me quite a while to even find the firmware area! REALLY bad design for a customer website!
But thanks for the suggestion. It did make me look it up, or at least try to.
@KB_Thailand: you could consider using some custom-firmware for your router.
Typically you would gain more options in configuring your router
Even with the standard firmware, you could play around with various options to find out which configuration and option suit you best
then try to change the wireless band, maybe other router automatically used a less crowded band, this new one not do this and you end up use a band who is used from many people who live too close to you.
Thanks to both @riccetto80 and @Tiemichael for the suggestions. I did look at the router setup and also looked at network diagnostics. The router appears to be set up okay.
Signal strength for the WiFi bands is between -45 and -50 dBm everywhere in the house, and noise is between -88 and -91 dBm.
Both bands are set to auto select, and both bands are using unused bands in the area, and are the 'best bands' according to the diagnostics.
There are only 3 other WiFi routers I can see from my house, and 1 of those belong to my Time Machine. The WiFi router is not using the same bands as any other WiFi.
Transmission strength is set to 100% on both bands.
When I went to bed last night, I had 41% battery. This morning, 7 hours later, I had 20%. The screen was off and the phone should have been in sleep mode, yet it drained 21% battery. The usage in Settings->Battery shows Launcher3 as eating a lot more power than might be expected for a phone in sleep mode. I have tried using ONLY 2.4GHz and then ONLY 5GHz, which made no difference in battery consumption.
I am at a complete loss as to what is going on.
Regards,
maybe is not about wifi! did you tryed a foce doze app like naptime and a app-sleep app like servicely?
It is definitely something to do with the change in ISP/router. I was out of town the last 2.5 days and the phone went back to acting as it normally did before, lasting over two days on the charge, even while switching WiFi networks often. The hotel had 6 networks in both bands, and depending where you were on the property, one of them would be much stronger than the others. No issues whatsoever with battery drain on either band. I came home about an hour ago, and the battery has already drained 6%. This is after only using 3% since 0600 this AM until I got home.
@riccetto80 No, I haven't tried the apps because it wasn't doing this before and the trip proved it is not something that went bump with the phone hardware. I just need to figure out what is going on with the new router, as I am almost positive it is the problem. I have a couple of other things to try over the weekend, so hopefully will arrive at some kind of understanding at what the problem is. If no resolution, I will try the apps and see if they make a difference.
I *THINK* I might have figured this out. It may be a two part problem. I went into settings and set the location to Battery Saver vs. High Accuracy, set the Security to turn off the settings to not lock the phone for my home location and on my body, and went into the router and set the Beacon Period to 200 from 100. I tried 1000 and DTIM of 2, and 500 and a DTIM of 1, but that made the internet connection quite laggy, so backed it off to 200 and 1 on DTIM. (100 and 1 is default) These changes SEEM to have slowed the battery drain down considerably., only losing a few percent points in the 4 hours since the changes vs. 6% in an hour. It's funny because these settings were still active when I went out of town, so it may have something to do with the keep unlocked for the home location and the new router.
I'll report back if these don't fix the problem.
Follow up post:
The issue is some sort of conflict between the router and the Stay Unlocked at this Location setting. I went back into the router and set the Beacon back to 100, the default setting, but left the Stay Unlocked Setting off and the High Accuracy Location setting set to Battery Saving. The phone is now acting like it did previously, so I consider the problem solved. Where before it was using 6% in an hour, I have only used 5% in 6 hours with these settings.
So, if you are experiencing battery drain issues, one thing you might wish to try is to set Location to Battery Saving (middle selection) and make sure the Stay Unlocked settings are off. It is really no more of a pain to hit the fingerprint reader than to hit the power button to turn on the screen.
I hope this helps someone.