Battery indicator goes Critical Red with more than 1 hour battery left

[Christoph Buchner]

indicator-power 12.10.6+14.10.20141015-0ubuntu1, Ubuntu 14.10

On my current laptop, the battery indicator shows a red-with-a-little-left icon when there is more than an hour left in the battery, which is not really appropriate for a "critical battery warning".

This bug is probably a regression of #743823, and I was asked to create a new bug by @mpt:
> Christoph, yes, please report a new bug including a screenshot. On phones we may have to color by percentage, but on PCs we can and should color by time remaining to avoid false alarms.

A screenshot is attached. Unfortunately I didn't realize at the time that the screenshotter does not record open menus, so you'll have to take my word that the time remaining in the indicator menu was at > 1 hour. I can redo the screenshot, if necessary.

<https://wiki.ubuntu.com/Power#Icon>: "If it is discharging, the icon interior should be filled from left to right approximately as much as the remaining charge. If it has less than 30 minutes left on a PC, or less than 20% left on a phone or tablet, the fill should be red rather than monochrome."

[Christoph Buchner (bilderbuchi)]

The times left shown in the UPowerDump file will not be representative, as the bug report happened quite some time after I originally made the screenshot.

[Emilien Klein (emilien-klein)]

Same issue here, once the battery drops below 30% it's shown as red, but there's still plenty of time left (1:32 when I took the attached screenshot)
If the color really has to change at 29%, I'd be OK if the indicator was yellow, but I'm just fine with the normal white one. Rred is just not reasonable.

The Android phones I've had start warning about low battery at 15%, that seems fine to me.

[Emilien Klein (emilien-klein)]

Forgot to mention I'm on Ubuntu 14.10 as well. This is on a newly purchased laptop on which I haven't run previous versions of Ubuntu, so I can't confirm if this is a regression as supposed by Christoph Buchner.

[Charles Kerr (charlesk)]

Emilien, the 30% red is handled separately in bug #1388235. That ticket doesn't doesn't directly address mpt's discussion of coloring by percentage on phone but by time on desktop, but it may ameliorate the worst examples of this bug by improving the icons' granularity.

To color by time, we might ultimately need red and nonred versions of each discharging icon.

[Matthew Paul Thomas (mpt)]

Specification updated. <https://wiki.ubuntu.com/Power?action=diff&rev2=71&rev1=70>

[tyknkd (tyknkd)]

Same issue on Ubuntu 19.10. A red indicator with 4 hours (45%) of battery left is counterintuitive. I find myself repeatedly clicking the indicator when it turns red only to find out that I have several hours left.