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https://issues.apache.org/jira/browse/CB-4518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13798453#comment-13798453
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Peter commented on CB-4518:
---------------------------
Definitely separate issues:
* CB-4516 - "level" assumed to be a _percentage_, but no guarantee. Should be
calculated according to Android docs.
* CB-4515 - Battery level threshold check logic is flawed
> Battery "level" is not calculated correctly
> -------------------------------------------
>
> Key: CB-4518
> URL: https://issues.apache.org/jira/browse/CB-4518
> Project: Apache Cordova
> Issue Type: Bug
> Components: Android
> Affects Versions: 2.9.0
> Reporter: Peter
> Assignee: Joe Bowser
> Priority: Minor
>
> The meaning of the Battery "level" in Cordova is a charge *percentage*.
> Ref
> http://cordova.apache.org/docs/en/2.9.0/cordova_events_events.md.html#batterylow
> But the Battery EXTRA_LEVEL is not a percentage. It's just a number in the
> range 0 to EXTRA_SCALE
> Ref
> http://developer.android.com/reference/android/os/BatteryManager.html#EXTRA_LEVEL
> So the battery level calculation should be something like:
> {code}
> int level = batteryIntent.getIntExtra(android.os.BatteryManager.EXTRA_LEVEL,
> 0);
> int scale = batteryIntent.getIntExtra(android.os.BatteryManager.EXTRA_SCALE,
> 100);
> int percent = 100 * level / scale;
> obj.put("level", percent);
> {code}
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