extra info, it looks like problem has been introduced after linus kernel 3.13.0-11.
on linux kernel 3.13.0-11 everything works OK, but on kernels 3.13.0-27 thru 3.13.0-36 system cannot detect BT mouse/keyboard battery charge % I did not test kernels between 11 & 27, will check if something available in the repo to test... ------------------- OK ------------------- $ uname -a Linux yku-helix 3.13.0-11-generic #31-Ubuntu SMP Wed Feb 19 19:57:21 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ upower --dum ... Device: /org/freedesktop/UPower/devices/mouse_hid_90o7fo61o11o29ofd_battery native-path: hid-90:7f:61:11:29:fd-battery model: ThinkPad Compact Bluetooth Keyboard with TrackPoint power supply: no updated: Thu 09 Oct 2014 10:27:09 PM PDT (9 seconds ago) has history: yes has statistics: yes mouse present: yes rechargeable: yes state: discharging percentage: 100% History (charge): 1412918798 100.000 discharging 1412918798 0.000 unknown History (rate): 1412918798 0.000 unknown Daemon: daemon-version: 0.9.23 ------------------- PROBLEM ------------------- $ uname -a Linux yku-helix 3.13.0-30-generic #55-Ubuntu SMP Fri Jul 4 21:40:53 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ uname -a Linux yku-helix 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ uname -a Linux yku-helix 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ upower --dum ... Device: /org/freedesktop/UPower/devices/mouse_hid_90o7fo61o11o29ofd_battery native-path: hid-90:7f:61:11:29:fd-battery model: ThinkPad Compact Bluetooth Keyboard with TrackPoint power supply: no updated: Thu 09 Oct 2014 10:33:54 PM PDT (9 seconds ago) has history: yes has statistics: yes mouse present: yes rechargeable: yes state: discharging percentage: 0% History (charge): 1412919234 0.000 unknown History (rate): 1412919234 0.000 unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1375540 Title: power indicator shows Apple BT mouse batteries with 0% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-power/+bug/1375540/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs