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From: VanguardLH <V@nguard.LH>
Newsgroups: comp.mobile.android
Subject: Re: Which uses less power
Date: Tue, 22 Oct 2024 12:15:51 -0500
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Chris <ithinkiam@gmail.com> wrote:

> Bill Powell <bill@anarchists.org> 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?
> 
> Too marginal to say definitively. It might make a difference if you
> routinely turn off BT when using the internal speaker, but most people
> don't. 
> 
> The best way to save power is use airplane mode which turns off the mobile
> radio.

But no cellular radio (for data aka Internet) means no podcast.  The OP
isn't listening to local audio files on his phone.  He is listening to a
podcast, and that requires Internet access which requires the cellular
radio for data.  I suppose he could be using an app to first download a
podcast to save to a local file on his phone, but he didn't mention how
is is listening to the podcast: locally downloaded file, or streaming
from Internet.