CNET Labs have just published the results of their Zune 80 audio-only battery drains and the numbers are somewhat disappointing. Microsoft rated the Zune 80 for 30 hours of audio playback with the Wi-Fi feature turned off. Lab testing revealed that the Zune 80 is realistically capable of 22 hours of audio playback with the Wi-Fi feature turned off, or 18.5 hours with the Wi-Fi feature enabled.
While 22 hours is certainly better than the 13 hours we got from the first-generation Zune, it's nowhere close to the 45 hours we were able to get from the competing 80GB iPod Classic.
View: Full Article @ C|Net Labs
While 22 hours is certainly better than the 13 hours we got from the first-generation Zune, it's nowhere close to the 45 hours we were able to get from the competing 80GB iPod Classic.

screen energy use mainly due to lighting if im not wrong. -> not clicking buttons all the time = screen lumination = off -> see above
Glassed Silver:mbl
Anyway CNET claims 45hrs in their article, I guess it could be possible with large amounts of ram and a preset playlist (ie you're not changing or skipping tracks).
Last edited by Shadow Dragon on 27 Nov 2007 - 21:13
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