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Unormal (talk | contribs)
Added some first information
 
Broulik (talk | contribs)
I re-added remaining time
 
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=== Summary ===
=== Summary ===


There is simply no way to get an accurate number for the remaining time (it's not possible without predicting the future ;-). As soon as you switch e.g. from working on document to watching a video or compiling some heavy piece of software to battery of your device will get used much faster and thus the "remaining time" of your battery decreases in a much faster rate than "predicted".
There is simply no way to get an accurate number for the remaining time (it's not possible without predicting the future ;-). As soon as you switch e.g. from working on document to watching a video or compiling some heavy piece of software, the battery of your device will get used much faster and thus the "remaining time" of your battery decreases in a much faster rate than "predicted".
 
"Smart" batteries (e.g. those with support for SBS) are generally only found in laptops (so devices are out) and do a very good job of knowing the current percentage, but do not solve the future-use-prediction issue.
 
=== History ===
 
There were already several discussions about adding the remaining time. See e.g. [http://osdir.com/ml/plasma-devel/2009-05/msg00269.html]
 
=== Outcome ===
 
In [http://quickgit.kde.org/?p=plasma-workspace.git&a=commit&h=fc3da7a59effbacbd1c21af5d011a8354040b1ca this] commit for Plasma 5 the remaining time was re-introduced by default. The rationale behind this can be read in the linked commit message. (The current Plasma 4.x situation won't change)

Latest revision as of 21:15, 19 June 2014

Adding remaining time on battery widget

Summary

There is simply no way to get an accurate number for the remaining time (it's not possible without predicting the future ;-). As soon as you switch e.g. from working on document to watching a video or compiling some heavy piece of software, the battery of your device will get used much faster and thus the "remaining time" of your battery decreases in a much faster rate than "predicted".

"Smart" batteries (e.g. those with support for SBS) are generally only found in laptops (so devices are out) and do a very good job of knowing the current percentage, but do not solve the future-use-prediction issue.

History

There were already several discussions about adding the remaining time. See e.g. [1]

Outcome

In this commit for Plasma 5 the remaining time was re-introduced by default. The rationale behind this can be read in the linked commit message. (The current Plasma 4.x situation won't change)