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cell phone - bluetooth a drain?

Old 02-03-2007, 11:15 AM
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Default cell phone - bluetooth a drain?

Really happy with my BB 8700 - batt lasts several days - does the batt last longer if I turn off bluetooth when I'm not in a BT situation?
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Old 02-03-2007, 01:56 PM
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Default Re: cell phone - bluetooth a drain?

As for your question, I don't use bluetooth, but you can set the phone so that it goes off and comes on at specified times. Very cool.

On a tangent, Cingular doesn't offer insurance on my BB and I dropped mine and got a small scratch on the lens. I bought a screen cover for it from your boys, navprotector.com, and it works great. Can hardly tell it's on.

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Old 02-03-2007, 03:54 PM
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Default RE: cell phone - bluetooth a drain?

Glen E - 2/4/2007 8:15 AM

Really happy with my BB 8700 - batt lasts several days - does the batt last longer if I turn off bluetooth when I'm not in a BT situation?
The short answer is 'yes'...or maybe, 'it should'.

BT is a radio that frequently 'talks' to itself when turned on. It's kind of like the way a cell phone broadcasts and receives from local cell towers every 5-mins whenever it is on, whether you use the phone or not. You may find the batt's estimated usage time in the BB's doc. Some cell phone's docs list the batt's time for BT turned off and BT turned on.

That said, my BT enabled cell phone is 2 years old and the entire radio communications industry may have rolled over and evolved into a whole new creature and I wouldn’t know about it if it did.

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Old 02-03-2007, 04:32 PM
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Default RE: cell phone - bluetooth a drain?

It does impact battery life, but not all that much if the channel is idle; its just the "keep alives" which don't draw much power. If its active, however (e.g. you're using it on a call), it has a significant impact.
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Old 02-03-2007, 04:44 PM
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Default Re: cell phone - bluetooth a drain?

I believe, and I may be wrong or the technology may have changed, but I beleive even in ideal it is frequently broadcasting looking for its mate. Remember, BT requires both sides to be "married" together. So if you leave the BT enabled it is occassionaly testing the airwaves, looking for its other half.

Best to turn it off when using it. Fwiw, woman’s cell phone, same make and model as mine, would only last about 1/2 as long as my cell phone’s batt. She had BT enabled. All I did was disable the BT and her cell phone batt now lasts as long as mine. These are Motorola v710 phones, now about 2 years old, so the technology may have changed.
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Old 02-03-2007, 04:54 PM
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Default Re: cell phone - bluetooth a drain?

I can't say that I have noticed a difference at all, my phone last for a full day easily, and can go for two if need be, with the blue tooth enabled.
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