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Will constantly having Bluetooth on drain my battery too fast?

When Bluetooth is turned on, but not in use, is it still draining power? If so, how much relative to it being in use?

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@AlEverett - I saw that question, but I didn't feel it answered my question of how much of a battery drain it was while on, but not in use, relative to being on and in use. – SaintWacko Aug 16 '12 at 21:37

marked as duplicate by Al Everett, Izzy, Sachin Shekhar, Flow♦, Zuul Aug 17 '12 at 9:06

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Yes. When it is on, but not in use, it continually scans for the device it has been previously paired with.

This allows for it to do things like-- automagically connect to your car when you get in it.

However, the amount of battery drain is still minimal, even if it is continually scanning.

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Alright, that's good to know. I have my Nexus 7 set up to Bluetooth tether from my phone, so I essentially have 3G on my tablet. It didn't seem to be draining my battery any faster when it wasn't in use, but I wanted to check. – SaintWacko Aug 16 '12 at 21:36

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