This thread is intended to discuss about the possibilities to increase the battery efficiency of the FP2 (using the pre-installed FP-OS). Maybe we can develop it into an wiki/guide later on.
Note by @paulkreuzer: Since there are many topics about batteries and charging let's please keep them sharply distinguished from each other.
To discuss problems with your battery please go here, to show off how long you can make your battery last go here and to learn more about your battery or contribute to our knowledgebase go here....
Bottom line: As I am quite pleased about the battery consumption during the stand-by/screen switched off phase I am very dissapointed of the energy saving capabilities if screen is turned on, but the phone has nothing to do (= idle).
Until now I used for this BetterBatteryStats, CPU-Z, SetCPU at my rooted FP2.
If have none of the google-services actively used, no google-account set up and only installed programms from F-Droid or via direct APKs (from FP1).
Until now I can only use the FP2 about 50-30% of the time as I am used to with my FP1 at same usage - which I can't accept with such a better and more modern SOC aka Snapdragon 801.
No question - the FP2 has a good performance, especially compared to FP1 in nearly any aspect. But I had not thought that we will buy this with the lack of battery efficiency if this high-performance-features are not used!
I have begun some research on this topic and any hints, further research or ideas are highly appreciated!
Stand-by mode (Screen off)
Let's start with the power consumption in stand-by mode. Here the screen is turned off and the FP2/chipsets should go to the most energy saving states possible (if no other tasks HAS to be done).
I find it quite satisfying values for this and will add more numbers/screenshots in the future here.
- Typical values of consumption in stand-by is about
0.2 - 0.3 %/h
- I could not see a big difference between flight-mode and SIM1+2 activated in 2G-mode - thats good!
- The CPU is in more than** 95%** of the time at the so-called "Deep Sleep", which is the most energy efficient stat (and below the lowest frequency setting of 300 MHz)
- Screenshots: CPU states and processes:
IDLE mode (Screen on)
Now let's have a look to these values, when the FP2 is switched on in IDLE mode:
Screen ON, but without having any app performing a discrete tasks. Phone is freshly booted.
My observations after keeping the screen ON for ~40minutes with nearly doing nothing:
- CPU-Z-says, that the CPU is continously at 30-40% load
- CPU-Z says, that only 2 cores are most of the time "stopped=Deep Sleep", while the other 2 cores are continuesly changing frequency.
- CPU-Z says: one of the 2 busy cores are most of the time at highest frequence (which I limited to 1036MHz with SetCPU), while the other at least some times is at minimum 300MHz
- In BetterBatteryStats I can't find any programm, which would explain the high CPU usage.
- In BetterBatteryStats I only see "PowerManagerService.Display" which is active the complete display-on time. I guess this normal, although I don't know exatkly what it means?
- BetterBatteryStats calculates a consumption of about
10 %/h- without doing anything!!!
Screenshots: CPU-Z / 4xBetterBatteryStats
Same test at my FP1 reveald a CPU load of 2-5% and 3/4 cores "stopped", 1 core all the time resting at its minum frequency (~800MHz)
So my questions and thoughts about are:
- What is the exact reason why the CPU can't rest and be more energy efficient, if there is nothing to do (exept lighting a not changing screen)?
- Why not 3/4 cores can be "stopped" and 1 core resting at minimum 300MHz, as I know it from FP1
- Can anybody reproduce this behaviour or can bring some light in this problem?
- Can it be related to a bad software-side settings of the so-called "governor" and "IO-scheduler" of the CPU? (see below for more details)
- Could this problem be related to the often reported "bad battery duration" during internet browsing or chatting or other low-usage tasks?
- Could a better CPU-setting bring us a lot of more Battery duration and efficiency?
- I think same problems occur during making calls, as the battery is eaten quite fast and phone gets hot although only 2G is used.
In the next time I will repeat my "research", also under other conditions, e.g. "Battery Saving" option of Android enabled, ...
At this screenshots you see the available "governors" and "IO-Schedulers", at my FP2 which SetCPU reports. With playing around with them, I also could not provoke an acceptable IDLE-behaviour...
Read full topic
Sorry, your answer is too short !
- Typical values of consumption in stand-by is about
@Predicator wrote: Hello, My phone's battery is 2% before charging, Now I connect it to a charger for 5 mins only (at 11:00 AM). After charging phone for 5 mins the battery capacity increases to 99% and removed the phone from charging (at 11:05 AM). I checked my mails and the forum, and kept phone on ideal mode for next 10 mins. It's now 11:15 and it's down to 2%. But the strange thing is that phone keep running/performing for 2+ hours while having 2% amount battery Can anyone help me out to over come of this problem ? ThanksPankaj Posts: 1 Participants: 1 Read full topic
@pbenoist33 wrote: Could you, please, answer to my request #82397 .. (2 weeks ago...)I've a big problem cause i can't use my FP2.. When i get my new FP2 i could not load the battery.I bought a new shorter cable and now, (i suppose the battery is empty), my FP2 can't start (looping in Welcome to fairphone, vibrator, black screen.. so one...)what can i do ? Send it back ? Posts: 1 Participants: 1 Read full topic
@KleinerAdmin wrote: My Exchange account on FP2 in general works: mails, calendar and contacts sync fine. But entering or changing a birthday entry in the Android contacts app prevents syncing contacts with Exchange any more. Syncing works again if the birthday entry is dropped in FP2. If birthday entries are entered or changed in my Office Outlook or Outlook Web Access, these changes are successfully synced with my FP2. Searching the web gives a highly interesting result (androidcentral). In short, an internal format mismatch of the Androids date is most likely the reason my Exchange 2013 server rejects this sync request. I created Exchange server-side logs and found the following error message in the sync-log: SyncCommand_ConvertRequestsAndApply_Change_AcceptClientChange_Exception : Microsoft.Exchange.AirSync.AirSyncPermanentException bei Microsoft.Exchange.AirSync.SchemaConverter.AirSync.AirSyncUtcDateTimeProperty.get_DateTime() bei Microsoft.Exchange.AirSync.SchemaConverter.
@Miki wrote: Hi everybody, I look around the forum but I did not find a similar problem in others conversations, hope not repeating!! The problem is that I can't start my FP2! I've had my FP2 for 3 weeks and so far no big problems until now!!It doesn't boot, totally black screen.I turned it off yesterday, and today morning I couldn't be able to power it on. I've tried taking off the battery, then the SIM cards, then carely disassembling the screen, and mounting again, and trying to start the phone again, and it does nothing, completely inactive - black. I've tried to start it in recovery mode (pressing power button and volume up button at the same time for at least 10 seconds, isn't it?) and no reactions... The only reaction is if I connect the phone to the charger, and the notification LED on the left upper corner turns on red. Can you guys help me with resolving this issue?Thanks a lot! Posts: 2 Participants: 2 Read full topic
@KaronBlixa wrote: Me and my partner got our new Fairphones 2s just a couple of days ago and have been very happy with them since. But today when my partner got home she realized hers had died even though it had about a quarter of battery life left. Since then I've tried to simply load the battery but that would not work so i tried to switch battery between the phones but her phone still did not respond to the on/off-button. I get nothing more than the red light loading indicator when plugging it in the charger. No vibrations, no screen activity, NOTHING! The phone has not taken any hits or been in contact with water. Any thoughts on what could be causing this? Kind regards,Karon Posts: 1 Participants: 1 Read full topic
@Vinni wrote: Today for some reason, my phone kept unlocking in my pocket all the time. I don't use a PIN or password which probably makes that easier. Anyone else experiencing that issue? Is there a way to modify the lockscreen a little bit to harden unlocking of the screen? Or do you suggest I lock my phone with some PIN/pattern? What I noticed then was for example that the flashlight turned on automatically in my pocket (which I didn't notice for a few hours). When I looked at my phone, the battery was suddenly at 25% although I charged this morning and my battery usually lasts 3 to 5 days. So I went to the battery monitor but nothing showed there. I was confused. As I put it back into my pocket I noticed the light was turned on. Can we display a flashlight icon in the statusbar if that is turned on? That would be awesome! Cheers, folks!Vincenz Posts: 1 Participants: 1 Read full topic
@bm90001 wrote: Hi, I found out that there's an issue with the app "wunderlist" on my FP2. I was already in contact with the support-team of this app and after testing several possibilities it came out that this might be a software issue with my phone. Description of the problem: assigning tasks isn't possible from my FP2 in the app wunderlist. Does anyone of you know this problem?Could this perhaps be solved in the update of the FP2 OS? Thanks a lot!b Posts: 1 Participants: 1 Read full topic
@mhelvens wrote: I bought my FairPhone 2 with a spare battery, so I could switch on long trips. Is there a way to charge it without actually putting it in the phone? For example, for my old Galaxy S4 I used this: www.samsung.com Samsung Galaxy S4 Battery Charging Kit - Samsung Accessories Take charge with a Samsung Galaxy S4 extra battery kit, including a battery and charging case. You can carry it with you easily thanks to compact design. Is there something like that for the FairPhone 2? Thanks! Posts: 1 Participants: 1 Read full topic
I have a Z400t Lenovo lap top I got from a friend. It will not power on, here is what I have tried so farTested the power cord It is GOODChecked the DC power jack from where It plugs in to the Motherboard. It checks GOODI have checked the battery at the plug- NO VOLTAGEI peeled the wrapper back on the battery and check directly to the end of the battery and got 11 volt DCI have tried to do a couple of the thing listed different websites the rest button on the sideI have tried to hold down a couple of key as listed in different websites'I know that according to several websites' there is some firmware and software setting I need to make if I can get it to power up and boot.Has anyone else had this problem and is there any other things to check?
@Patrick1 wrote: Hello, Since the last update the green led lights up at about 95% charging status. I know before it done so when at 99%-100% and was a bit unsteady depending on the phones operation.This seems to be a new bug introduced with the latest update. I have read also FP1 had this issue. I assume there are more FP2 users out there having realized this behavior.I guess this is another point having to be fixed with the next update. Regards Patrick Posts: 2 Participants: 2 Read full topic
@MJZ wrote: Hi, yesterday, while my phone (FP2) was charging my phone crashed /switched off and simply switching it on again did not work. ( when I started charging, the battery was said to be at 3%, and during the charging I was using it with wifi switched on). I assumed the battery was simply too empty and kept charging it. However, I haven't been able to switch my phone back on since. I have tried 3 chargers and charging through a laptop usb connection, but without effect. I have tried multiple button combinations without effect (for reset and hard reset etc.); the screen remains black. When the charger is plugged in and the battery is removed, the little light at the top left corner glows red. When I pop back in the battery, in most cases the red light switches off again. Also without the battery, but with the charger plugged in switching the phone on has not worked. I have not found similar problems on the forum, only one post on the Facebook page, where the phone owner was
@Stefan wrote: Continuing the discussion from FP2 kills some SIM cards: The FP1 has a little cell battery, which is in charge () of advancing the clock, when the normal battery is taken out of the phone. Unfortunately this cell battery went dead after only about a year for most of FP1-owners and there is no way to replace it. This story is about the FP2 though: FP2 kills some SIM cards FP2 kills some SIM cards I [...] tried to switch off and let the battery out of the phone for some time. ...by the way, ther seems to be another bug: i switched back on the phone [...] and i was hours back in time.Actually I think this is not a bug but expected behaviour. If you remove the battery, the FP has no way of advancing the timer, so inevitably the clock will be off the first time you start. Is this true? Does the FP2 indeed not have a cell battery to help keeping the phone's clock up to date? Posts: 1 Participants: 1 Read full topic
@diddyxking wrote: After I have updated my FP2 (Open Source OS) to version 16.05.0 my phone is very hot all the time. Calling someone is not enjoyable anymore. The area above/beneath the mainboard is affected. Has someone else the same problem? Posts: 1 Participants: 1 Read full topic
@rock.minister wrote: HiI hope you can help me. IÂ´ve already read a lot of threads, but found no answer. For more or less 1 month my CPU gets hot and my battery draisn very quickly and only lasts for 6 hours or so.(the last update dindÂ´t fix it).My idea was thant an app is using the battery, so to resolve it i deleted a lot of apps, and in the end right now i did a factory reset. But while I was doing it, just after the restart from the reset the CPU I made me a coffy and after returnig the FP" again gets hot as hell without doing anything. So i think its NOT an app. I also read that removing and reassembling the phone screen could help? (This way I regulary resolve the proximity sensor problem). Does anyone have an idea? I really really like the idea of fair Phones ( and in general fair traded products!!), but spending each 2 month my free day to solve porblems really makes it a hard decision to stik to the FP. Posts: 3 Participants: 1 Read full topic
@Schneeflocke wrote: Dear all,I have used my phone until yesterdayafternoon and in the evening the screen would not light up anymore. The LED is working and also my alarm went off this morning. However, screen stays dark.any ideas for help? Posts: 1 Participants: 1 Read full topic
@Alfi1966 wrote: When you have trouble charging your battery and only see a blinking red light, it means that the battery is below the voltage required for safe charging. The phone will go into a slow charging mode and the battery will start charging normally when the minimum voltage is reached. In some occasions this process can be stuck in the red led blinking mode. To resolve this you can try the following: Make sure that your charger is powerfull enough for the FP2, if so: Remove the battery from the phone Connect the charger When the Fairphone screen is visible, immediatly insert the battery. The battery should start charging If the charging led stays off after the battery charge animation closes, remove the battery again (leaving the charger in) and insert it immediatly again. It should now show you the red charging light burning continiously. Leave it like that for at least 10-15 mins before attempting to start the phone. Note: This behaviour is not specifically Fairph
Hi, i would like to monitor my computer power consumption under kubuntu 16.04. I know that on laptop there is a software for the battery that can do the same but what about desktop computer or laptop without battery ? Is there a software that can tell me that currently computer needs xxW with a graph evolution ? thx.
Hi guys, Â power consumption in Europe is rather a big topic. Right now I am running the following hardware (servers are running 24/7) Â Servers: MacMini C2D = 30W (idle) Fujitsu i5 2400 = 34W (idle) Â Gaming: i5 3570k@4,5GHz + 980Ti = 49W (idle) Â For the server that makes 0,064kW * 8760h/a * 0.24â‚¬/kWh = 134.55â‚¬/a Â If I only could lower the idle power consumption on the server side by 50%. There are two option for doing this. Â 1) Sell the Server-hardware + some from the gaming-machine to do the following. Use unRaid where I have one gaming vm that will get assigned the GTX 980Ti. For 24/7 I need a Sophos UTM 9.x + NextCloud + test-CentOS + Windows 10 Dev Env. as vm on this machine. My hope with this scenario would be that if I turn the vm down, the GTX 980Ti wont drain too much power. i7 6800K X99-Board 16GB Ram (already in hand) 2x500GB SSD (already in hand)
Issue#905649: Fairphone - Severe issue with my FP2 and USB & charging (which used to run just fine for 4 months no
@root wrote: Hi! I've been a happy FP2 user for nearly 4 month now, running FPOSOS (self-compiled in the beginning, now on FPOSOS 16.05 and 16.06). My FP2 started to behave strange in the last week (reboots, empty battery in the morning after charging all night, etc. - all the good & known stuff). Tonight I wanted to find out what's wrong. I can say: Charging is fine when the phone is switched off I can transmit data in "fastboot" mode (e.g. "fastboot -w update ..." works) As soon as the OS is started, charging becomes a game of luck. And whenever I plug the phone into a computer, the USB connection choice dialog would not appear. Nothing, no "adb" etc. Strange, isn't it? What I did now: Data reset Wipe each and everything Re-install FPOSOS 16.06 Re-install FPOSOS 16.05 Removed all SIM cards and the SD card as well Repaired permissions from TWRP Completely disassembled the phone (all modules), cleaned contacts with alcohol (no, not with beer!), assembled the phone again
@Noir wrote: Hello, I've received my FP2 and I wanted to know if I need to fully use the battery first, before charging it for the first time.Also, how many time should I charge my phone for the first time ?Thanks ! Bonjour, je viens juste de recevoir mon FP2, et je voulais savoir si je dois d'abord user la batterie avant le premier cycle de charge ? Et combien de temps dois-je le laisser charger ? Merci ! Posts: 3 Participants: 3 Read full topic
@Glogg wrote: I have seen many posts regarding FP2s restarting by themselves. I have this problem. Sometimes it will just restart and its especially annoying if I am using my phone to navigate in my car. It happens at random times. Sometimes with days apart sometimes several times a day. But the most annoying problem and one that I could not find on the forum is that in addition to this, sometimes my phone will shut down, and it is totally impossible to turn it back on. The only solution is to take out the battery, put it back in and then it will work again. Anyone else have this problem? Any idea what could cause this? Thanks! Posts: 3 Participants: 2 Read full topic
@Jonty wrote: I have had a very unreliable battery for some time. Far worse than another family member who has an FP2 as well. But customer service never get back to me. Now the USB connection is not working. I can charge the battery in another FP2, but nothing will charge in my phone and it will not link to a laptop via a lead either. Once again there is no response from customer service and they do not answer their phone. Could any of this be a software/app/settings/updates issue? I cannot find anyone else having similar problems. And does anyone know how to get customer services to respond?! Posts: 1 Participants: 1 Read full topic
@thomasswann wrote: I've had a problem the last few weeks with my phone constantly 'awake' and draining the battery. A few nights ago I went to bed with the battery at about 80% and when I woke up 7 hours later the phone was dead. I'd put the phone on airplane mode so it shouldn't have been using much battery. From the battery usage chart, it looks like the phone was 'awake' all through the night, ironically when I was sleeping. The same happened this morning when it went from about 30% to 2% in a few hours with virtually no usage. I can't show screenshots I took because it's died now, but I've attached a screenshot from a couple of weeks ago showing the same problem. Has anyone else had problems with their phones coming awake through the night when they're definitely not using them? What is the 'awake' function when the mobile signal, wifi and screen are all off? And how do I make sure it doesn't stay 'awake'? I've tried a battery saver app that closes all active apps, but that doe
@Sisyphos wrote: Hi, I like the idea of FP very much. Now I'm thinking about to buy one. But some critics about the battery raise doubts. I want to use the phone for routing with bike rides, hiking and sometimes travelling by car. My bike rides take between 3-8 hours. I'm using osmand on moto G (first Gen) which is just fitting to that demands for 6 hours. (I need to replace the phone, because the microphone is dead, and after two tries of fixing it by myself I give it up -- I would really appreciate the modular concept of FP2.) Anyway, I would like to ride 8 hours, without interruption by the phone, which runs out of battery. And I'm riding racing bike. So I don't want to add extra dynamos and other stuff to the bike to fix weak battery on the phone. Routing on bike for several hours costs a lot of energy, because I need the display to be turned on, to see the turning advices (I don't like voice orders on bike). And of course GPS is eating the battery as well. Is the FP able to
Issue#958167: Intel - What is the power consumption of each rails of Broadwell-DE(D1548) in stand-by mode? Is ther
Hi Folks, I am new in Broadwell-DE based designs. Apologies in advance if the questions are silly. Questions: 1) What are the power consumption of each rails of Broadwell-DE(D1548) in stand-by mode? Is there any document for this?I have checked the datasheets(1:4), There is no stand by power rating information 2)Also we need to feed VCCIN(Input to the Integrated Voltage Regulator) from stand-by rail or active rail?I am asking this because, my stand-by input power is only 10W(Standard SMPS standby power of 10W from 5V stand by). Please advice. Thanks in advance. VT
@avamk wrote: Hello, I am one of the early pre-order backers of the Fairphone 2, and I've sent this message to Fairphone support, but have not received a reply after more than a month..... :( So I'm posting it here hopefully someone can help? After the last couple of system updates (1.3.x to 1.4.x), my phone began to reboot spontaneously when I'm using it. I've been tolerating it as much as I can, but it got much worse over the past couple days (which is now more than a month ago!). When the phone was on for the last time, it showed the battery was at 88%, then suddenly it shut itself down as if someone took the battery out. Pressing and holding the power button no longer does anything, not even any response from the LED or vibrations.I thought the battery somehow died so I plugged the phone into a wall charger. When I do this, the phone "tries" to boot but immediately gets into a reboot loop that never makes it past a brief moment of the Fairphone logo being shown. Trying diff
@lyatnagata wrote: I have a big problem with my FP2 when using different applications. First I thought thats the problem of google or not google, but after changing to the OTA package the crashes are harder . To reanimate the FP2 I have to remove the battery. I do not use the phone often however the crashes are 4/ 5 times a week. The crashes are at different time. Writing SMS, chat and so on. When I want to use the GPS and navigation the crash comes soon. Have anyone an idea how can I solve this big problem? Posts: 1 Participants: 1 Read full topic
50 watt spec refers to max speed 3 right ???? how much does it consume at speed 1 ????????
@MarcB wrote: Hi ! Following this thread : FP2 Won't turn on or charge - See first post for troubleshooting Hi, I took it out, checked for dust but all clean and sits very well in the space intended. It did not help unfortunately so I have sent today a support request with the actions I have already taken requesting a new bottom module is sent out asap under warranty. Hope your problems can be alleviated in the same way. I would like to verify that my battery is indeed broken. It looks like it is charged as I can measure ~4V. But I guess something is wrong with the inner control circuit: when battery is "cool" (removed for few hours), the phone does wake up and start booting, but after few seconds, everything is switched off. My guess is that the battery (or the phone) decides that something is wrong and stops everything. The best way to verify this would be to use another battery, but that's not an option as I don't know anyone with an FP2. The second option would be (I think)