Thanks a lot. Of course I will wait.
I really appreciate your help.
I tested the DC02 yesterday & today, I used my old oneplus 5t as it has a 3.5mm jack so I could essentially get a more "apples to apples" comparison out of it.
Setup was like this:
I was connected to wifi and my bluetooth was on, but not connected to anything. I treated the phone as a media player, so I didn't use the screen at all, and I just let it run through the same playlist of songs for 5 hours*, with and without the dac, checking on it every hour. My phone was at ~50% volume (which is a little louder than I would listen to myself).
* The playlist is 10 hours long, I ran it in the exact same order for both cases. It consists of a variety of songs, ranging from things with heavy bass, to classical, metal, etc, pretty much a good mix of everything really.
No apps were updated, and nothing was downloaded in the background (music was stored locally too).
- Running the dac at 63 volume (the max volume that I could put into it's android app), and leaving my phone at 50% volume, it used 9% battery per hour.
- Running the audio through the 3.5mm jack on the phone, again at 50% volume, through the same playlist from the beginning (so it went through the same songs in the exact same order), it used about 3%.
=> Which means the dac added about 6% usage to my phone's normal usage.
My phone's battery is a 3300mAh one, but I used a diagnosis app, and it has decayed to 2600, that means the 6% usage of the dac equates to ~160mAh usage per hour.
So, I would say, if your player is 1000mAh rated, you should get about 5-7 hours of usage out of it.
Again, it's apples to oranges, but it seems to me that dc01 uses less power than dc02.
Hope this helps.