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From: Chris <ithinkiam@gmail.com>
Newsgroups: comp.mobile.android
Subject: Re: Which uses less power
Date: Wed, 23 Oct 2024 06:27:11 -0000 (UTC)
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The Real Bev <bashley101@gmail.com> wrote:
> On 10/22/24 7:06 PM, Qihe wrote:
>> Qihe <Q@invalid.invalid> ha scritto:
>> 
>>> Chris <ithinkiam@gmail.com> ha scritto:
>>> 
>>>> sms <scharf.steven@geemail.com> wrote:
>>>>> On 10/21/2024 11:15 PM, Bill Powell wrote:
>>>>>> Which uses less of the phone's battery power on long trips?
>>>>>> 
>>>>>> Playing long podcasts with the Android speaker as the output?
>>>>>> Playing long podcasts with a Bluetooth speaker as the output instead?
>>>>>> 
>>>>>> Any idea?
>>>>> 
>>>>> Speaker wattage is about 3W.
>>>>> 
>>>>> Bluetooth uses about 2.5mW.
>>>>> 
>>>>> So the speaker uses more than 3000x the power.
>>>> 
>>>> Do you have a source?
>>>> 
>>> 
>>> https://www.androidauthority.com/does-bluetooth-drain-battery-1145853/
>>> 
>>> -- 
>> They say: "The results show that playing back audio over Bluetooth
>> consumes essentially the same amount of power as playing back
>> audio over speakers or headphones with Bluetooth turned
>> off".
> 
> Why not obviate the battery problem by putting the podcasts on a USB 
> stick plugged into the AUX socket?

You're assuming they're (1) in a vehicle and (2) where that is possible.