AudiophileDuhan
New Head-Fier
- Joined
- Mar 13, 2014
- Posts
- 11
- Likes
- 10
11 hours...Wow! I rarely listen to an entire album...always browsing and skipping tracks. I guess now I know why I'm not getting long play times with each charge. Did you use the battery benchmark feature that is built into Rockbox (I just came across this in the menu the other day...haven't tried it), or did you just use a clock? I'd like to measure my battery life. I use Rockbox EQ most of the time, so I know that takes some extra juice...
I just long pressed the play button and made a full shuffled playlist of my music folder. I just used my clock. Started at 6.06PM full charged, System shutdown at 5.12AM. It played 159 songs. %80 of them were 44.1kHz FLAC files. %15 of them were Hi-Res 24bit FLAC. %5 MP3 or AAC.
I think Rockbox EQ will affect but not too much. Also I didn't measure the battery life when I'm touching buttons and skipping tracks a lot. But I feel like it was between 2.5 hours - 5.5 hours from every time I fully charged and with different usage scenarios.
The battery life drains quite quickly for me when I'm tinkering with setting, and the screen is lit quite a bit, which makes sense.
In the code rockbox shuts down when the system detects 3300 mv.
The battery is the same capacity and voltage of my iPod photo. That lasts double the length, due to a lower drain.
I wonder if there may be double the amplification drain, due to audio routing through the headphone and line out jacks simultaneously. The switching off of one port works properly in the stock firmware.
I'm curious of the polling frequency of the battery. I know there are times when my device is playing just fine for a couple of hrs, then I go to change something, press a button. Immediately after the button press, the system powers down.
Battery is draining so quickly when I'm constantly browsing music folders. Screen is a low res OLED display according to xDuoo. But in Rockbox it is working at 60Hz or maybe there is no frame limiter at all. I will look at that. I will turn off auto turning off screen when idle feature, and test it again with minimum/maximum brightness settings. Maybe big part of the issue is this.
I wonder too. I plugged in line out cable to 2.1ch sound system, and my Alessandro MS1i to headphone out. I didn't believe this player had more juice (amp+line out) than I thought. And guess what happened. The battery drained almost exactly the same as when I was playing it along with my headphones.
That happened to me 2 times and this is not good if polling frequency is so low. Especially when I get 11 hours of playing time in sleep mode. I hope I didn't damaged the battery. But I tried to start the Rockbox and it booted, after few seconds automaticly shut itself down. Tried to start xDuoo firmware, system not booted but showed battery icon 3-4 times then screen turned off.