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Name of API: Battery API
Reference: https://bugzilla.mozilla.org/show_bug.cgi?id=678694
http://dvcs.w3.org/hg/dap/raw-file/tip/battery/Overview.html

Note from spec:
The API defined in this specification is used to determine the battery status of the hosting device. The information disclosed has minimal impact on privacy or fingerprinting, and therefore is exposed without permission grants. For example, authors cannot directly know if there is a battery or not in the hosting device.

Brief purpose of API:
General Use Cases:Adjust app behavior based upon power status

Inherent threats:Fingerprinting, abuse of battery?

Threat severity:low

== Regular web content (unauthenticated) ==
Use  cases:Same
Authorization model for normal content: Implicit
Authorization model for installed content: Implicit
Potential mitigations: None

== Trusted (authenticated by publisher) ==
Use cases:Same
Authorization mode: Implicit
Potential mitigations:None

== Certified (vouched for by trusted 3rd party) ==
Use cases: Same
Authorization model:Implicit
Potential mitigations:None

Note: Should have a setting to disable this in privacy settings

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