UBports Robot Logo UBports Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Register
    • Login

    Observations on battery life - please share your experiences

    Scheduled Pinned Locked Moved General
    91 Posts 24 Posters 31.3k Views 2 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
      Reply
      • Reply as topic
      Log in to reply
      This topic has been deleted. Only users with topic management privileges can see it.
      • dobeyD Offline
        dobey @advocatux
        last edited by

        @advocatux Charge cycle management is how to extend battery life. Discharging down to 10-20% and only charging to 80-90%, depending on the specific battery specs, will optimize battery life span.

        But that is completely unrelated to whether the hardware (and any software running on it), is using the battery optimally, or wasting it.

        I don't think we need to discuss overall lifespan problems of Li-Ion batteries in this thread. It's pretty unrelated to whether UT has bugs affecting daily discharge rates.

        1 Reply Last reply Reply Quote 0
        • alan_gA Offline
          alan_g
          last edited by

          @alan_g said in Observations on battery life - please share your experiences:

          Next time I see this I should open a terminal, run "top" and capture the screen. It might give an additional clue. (Other suggestions welcome.)

          I've now done this:

          1. When I spotted the problem:

          0_1543833797890_screenshot20181202_181557261.png

          0_1543833961806_screenshot20181202_181401371.png

          1. After attempting to "shutdown", when it seems to simply restart Unity8:

          0_1543833820962_screenshot20181202_181733456.png

          1. After forcing power off and restarting:

          0_1543834008972_screenshot20181202_182032787.png

          1. An hour later:

          0_1543834095484_screenshot20181202_203118617.png

          W alan_gA 2 Replies Last reply Reply Quote 4
          • W Offline
            wgarcia @alan_g
            last edited by

            @alan_g So is ofonod the culprit? In my Nexus 5, it seems it got fear to be discovered because it hasn't done this for more than 20 days. My battery is lasting now all day long when it doesn't enter into this process.

            alan_gA 1 Reply Last reply Reply Quote 1
            • alan_gA Offline
              alan_g @wgarcia
              last edited by

              @wgarcia said in Observations on battery life - please share your experiences:

              @alan_g So is ofonod the culprit? In my Nexus 5, it seems it got fear to be discovered because it hasn't done this for more than 20 days. My battery is lasting now all day long when it doesn't enter into this process.

              This is one data point. ofonod may well be the culprit. Alternatively, it may be a victim.

              1 Reply Last reply Reply Quote 0
              • alan_gA Offline
                alan_g @alan_g
                last edited by

                And it seems that we're not the only ones to see this:

                asked Aug 17 '18
                Hi,

                I am using sailfish X, on xperia X device.

                Once in a while, I notice that my device gets hot, and its battery drains quickly. top shows that this is due do ofonod process, run by user radio.

                https://together.jolla.com/question/188336/ofonod-process-takes-up-100-cpu-until-i-reboot-my-device/
                
                1 Reply Last reply Reply Quote 3
                • Mic_M Offline
                  Mic_
                  last edited by

                  As I already said I have this problem on my Nexus 5, which is still also loosing a lot of power in stand-by-mode (but I haven't updated phone bios until now!). But I do not have this problem on my BQ E5, which is regarding energy management phenomenal!

                  But I can remember some versions from canonical at the end of 2015, where my BQ E5 had a comparable behaviour of charge levels as the graph of @alan_g shows. At that time some days later a new version came and this problem was not existing anymore. Don't know if that helps here.

                  1 Reply Last reply Reply Quote 0
                  • M Offline
                    malditobastardo
                    last edited by malditobastardo

                    Edge channel this started to happen to me also from the last 1-2 weeks

                    1 Reply Last reply Reply Quote 0
                    • T Offline
                      tomoqv
                      last edited by

                      I went back to OPO as my daily driver a few days ago. It has been while since I used it daily as I have had Pro 5 as my main device for some time.

                      Now, with the OPO on the devel channel, I can conclude that battery performance is pretty poor. Today, I took it off the charger (fully charged) at 06:40am, have done a couple of phone calls and some e-mailing with Dekko. That aside, very light use. I have all radios enabled (and bluetooth connected to my Pebble smartwatch), but have mostly been on WiFi. At 12:40, the battery was down to 40%, which equals an average hourly drain of 10%. That is considerably worse than my Pro 5 under similar conditions.

                      1 Reply Last reply Reply Quote 0
                      • Mic_M Offline
                        Mic_
                        last edited by Mic_

                        Since the last release channel update on my Nexus 5 last week the energy management of the phone seems to be improved. So I changed my BQ E5 to Nexus 5 as daily used phone.

                        I installed a fresh ubuntu touch system on the Nexus 5 (again release channel, Nexus 5 has newest bios installed). Than I tried to recalibrate the accu - discharged it completely in bootloader mode and recharged it to 100% until the green signs changed to white. Than I turned off everything (WLAN, bluetooth, mobile data, location):

                        After 9 hours in standby (without turning on) the phone discharged from 100% to 63%. In the same time my BQ E5 discharges from 100% to 99%.

                        Actually everything else on my Nexus 5 is really working very fine and I love this phone. But it is still loosing so much energy power while I am not using it that this is still a knock-out argument for this beautiful phone / ubuntu system combination! What the hell it is doing all the time while laying around?

                        alan_gA 1 Reply Last reply Reply Quote 0
                        • alan_gA Offline
                          alan_g @Mic_
                          last edited by

                          @mic_ said in Observations on battery life - please share your experiences:

                          After 9 hours in standby (without turning on) the phone dicharged from 100% to 63%. In the same time my BQ E5 discharges from 100% to 98%.
                          Actually everything else on my Nexus 5 is really working very fine and I love this phone. But it is still loosing so much energy power while I am not using it that this is still a knock-out argument for this beautiful phone / ubuntu system combination! What the hell it is doing all the time while laying around?

                          I've seen it do that too. But, more often, I've seen it hold charge better and be around 90% after the night. (Still not great I agree, but tolerable.) On these occasions I've not seen anything suspicious running top, but that doesn't really tell what was happening when the screen was off.

                          I have a long running suspicion that the radio hardware is not always in the state the software believes it to be in. In this case, that "off" shown by the software isn't actually "off". This could explain both battery life problems, and also the flakiness of hotspot. (I'm not sure how to go about proving that idea.)

                          1 Reply Last reply Reply Quote 0
                          • Mic_M Offline
                            Mic_
                            last edited by Mic_

                            That would explain why results are so different.

                            E.g. I was wondering why location service on Nexus 5 after a restart was on and 'fully white' (which is not always the case after a restart!?) - without using the service. This was never the case on the BQ E5.

                            And I also had the situation that after a night of 9 hours the Nexus 5 only discharged from 44% to 35%. Here I tried to turn off WLAN too (because I am turning off the router in the night and maybe searching a WLAN signal could be one disfunction). That helped. But the next try was worser again.

                            The discharging in the night from 100% to 63% was shown as a continuous line on the accu graph.

                            1 Reply Last reply Reply Quote 0
                            • K Offline
                              kugiigi
                              last edited by

                              I never got good battery consumption on my Nexus 5 but that could be also because of the battery itself.
                              There was something mentioned about bluetooth that causes it. There was a workaround to kill it in exchange of the bluetooth. I'm not sure though if it still applies to xenial because IIRC, I read somewhere that it was already fixed.

                              1 Reply Last reply Reply Quote 0
                              • Mic_M Offline
                                Mic_
                                last edited by

                                Here it is clearly not caused by my (new) battery. There are services running in standby which on BQ E5 are turned off. I always have turned off bluetooth - but maybe it is only shown as off. Maybe depending on different situations after a restart?

                                1 Reply Last reply Reply Quote 0
                                • Mic_M Offline
                                  Mic_
                                  last edited by

                                  And a further example: When I press start buttom in standby mode the BQ E5 needs mayby one full second to be ready - while Nexus 5 is much faster. And there seems to be something like a 'deep sleep'. When BQ E5 is a long time in standby it needs much longer to be ready. This is not the case on the Nexus 5.

                                  1 Reply Last reply Reply Quote 0
                                  • Mic_M Offline
                                    Mic_
                                    last edited by Mic_

                                    After installing release channel update-version 32 on Nexus 5 the energy management of the phone improved a lot! When I turn off everything (WLAN, bluetooth, mobile data, location) after 9 hours in standby (without turning on) the phone discharged about 13%. The same happened next day again. This is not good but tolerable and the phone works fine so.

                                    When I press start buttom in standby mode the Nexus 5 needs now a longer time to get ready (maybe half a second). But I cannot recognize a 'deep sleep' - after a long time in standby.

                                    1 Reply Last reply Reply Quote 0
                                    • L Offline
                                      L-00011 Banned @alan_g
                                      last edited by L-00011

                                      This post is deleted!
                                      1 Reply Last reply Reply Quote -1
                                      • T Offline
                                        tommiedom @jezek
                                        last edited by

                                        @jezek said in Observations on battery life - please share your experiences:

                                        As I wrote in another thread:

                                        I have the same experience on FP2 with OTA3 (15.04).
                                        If wifi is on, there is a huge battery drain (~36% in 12 hours).
                                        If wifi is off, the battery drain is much lower (~6% in 12 hours).

                                        So, on FP2 (OTA3) with minimum usage and

                                        • wifi off - something above a week (~ 7 days)
                                        • wifi on - something above one day (~ 1 day)

                                        Note: I was a while on OTA5, the battery drain was like on OTA3
                                        Note2: Mobile data off

                                        On my previous BQE5HD with original Canonical UT, the operational time with wifi on (and mobile data on) was about 4-5 days.

                                        Edit: typos
                                        Edit2: updated details on mobile data

                                        Same experience with my FP2

                                        FP4

                                        1 Reply Last reply Reply Quote 0
                                        • jezekJ Offline
                                          jezek
                                          last edited by jezek

                                          I think, battery duration got slightly better on FP2.

                                          Last observation on 2019-W06 resulted in battery drain 21% in 15 hours (~17% in 12 hours) with Wifi on, mobile data & bt off and no usage (conditions as my previous tests).

                                          This is worse than on android, but 2x better, than last year OTAs. Good work, keep it up. (y) Sooner or later battery usage will be as good as on android. πŸ˜‰

                                          jEzEk

                                          1 Reply Last reply Reply Quote 0
                                          • arubislanderA Offline
                                            arubislander
                                            last edited by arubislander

                                            I changed the scaling on my PRO 5 from 21 to 15 with UTTT. Since then I have noticed a marked increase in battery life. Has anyone else experienced anything similar?

                                            πŸ‡¦πŸ‡Ό πŸ‡³πŸ‡± πŸ‡ΊπŸ‡Έ πŸ‡ͺπŸ‡Έ
                                            Happily running Ubuntu Touch
                                            Google Pixel 3a (20.04 DEV)
                                            JingPad (24.04 preview)
                                            Meizu Pro 5 (16.04 DEV)

                                            1 Reply Last reply Reply Quote 0
                                            • E Offline
                                              elastic
                                              last edited by

                                              Under normal circumstances my Nexus 5 is loosing 2%/hr in flight mode and display off
                                              This morning however, it had lost about 70% in 7 hrs ... it might have been the location service as the icon still has been white when I woke the display ... I had a bad network reception when I opened the clock app before going to bed to switch on the alarm and I think it started searching for the location for the time zone and kept searching even after switching to flight mode ..
                                              So it might very well be related to not recognizing the network status on the Nexus 5 and so not stop searching and scanning ...

                                              1 Reply Last reply Reply Quote 0
                                              • First post
                                                Last post