battery life statistics for rockbox vs. iaudio?

[sparker]

Has anyone noticed an appreciable difference in battery life when using Rockbox vs. using iAudio's firmware? Its hard for me to judge, but it feels like Rockbox is draining ALOT quicker.

-s

[Bloody_Sorcerer]

rockbox certainly gets less battery life than OF by at least 10 hours. i usually run around 15 hours a charge under rockbox.

EDIT: on an X5L

[volt]

Three days of testing on my iAudio x5 60gb (playing 192kbps MP3 with 20 seconds total LCD backlight per songchange with 5.5 min avg song length) showed that the battery life was about 13.5 to 14 hours off of a full charge.

[XavierGr]

I thought that battery problems were resolved with latest CVS activity.
I don't own an iaudio so I am not sure. It would be good to see a real battery benchmark using the Rockbox plugin.

http://www.rockbox.org/twiki/bin/view/Main/PluginBatteryBenchmark

[jcelle]

It's terrible.
With RockBox I have 5 hours life.
I am using a special version with album art which seem to be more consuming than the 'official' version of rockbox. Album art version keeps scrolling text and seem to do so even when backlight is off.
Any suggestions are welcome...

[bk]

I'm planning on doing a formal test, but w/ my X5L I estimate around 22-25 hours on a charge. That's not too far from the OF (~30hrs typically).

I suggest trying an official CVS build before complaining about battery life. Most third party builds are very heavily patched which can cause any number of side effects.

[mhebsacker]

How recent is the "special album art" build? Does it already disable the USB-host chip?

[Znirk]

Here's a battery_bench plugin log from my X5 20 GB. This was a largeish playlist of ogg -q 4 files, played with no user interference. Caption backlight was on (2x8 seconds), and headphones connected (32 Ohm Sennheiser PX100, in case it matters). According to this single test, the built-in runtime estimate is conservative (shows 6 hours after charging, actual runtime over 10h).

[attachment deleted by admin, too old]

[Llorean]

You know, caption backlight hurts the runtime a lot. Does the original firmware do that? I can't imagine the official runtime test having backlight on at all, they rarely do.

[Znirk]

I haven't used the OF much. The battery life listed on iaudio.com is 14 hours, with a warning that users may get less out of it "depending on LCD usage". This definitely sounds like a no-screen test; I can run one of those with rockbox if you're interested.

Incidentally, the rockbox used for the test above was the 060918 daily.