Rockbox Technical Forums
Rockbox General => Rockbox General Discussion => Topic started by: scarfy on October 18, 2007, 10:18:08 AM
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Is it just me Sansa (with latest Rockbox build) that reports the battery low low even at 40% remaining..?
Do I need to patch it separately to get accurate battery levels?
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I don't quite undertand the question - Rockbox is reporting 40% battery left, AND is showing a low battery warning at the sametime?
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no,
i have the same problem, the player shut down when the baterry meter show 40 % and when i just finish charge it it show 80%
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What I am seeing (my WPS only shows a bar graph) is that the bar graph gets down to about 1/3 then disappears completely, followed by the player shutting down shortly after. Also unless I charge with the OF, and leave the charger connected for a few hours after the lighting bold disappears the battery drops to one bar down as soon as I disconnect the charger. If I leave the charger connected for a few hours longer, the battery stays at the full icon when the charger is disconnected.
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What I am seeing (my WPS only shows a bar graph) is that the bar graph gets down to about 1/3 then disappears completely, followed by the player shutting down shortly after.
Could you try using a WPS with an actual percentage readout? If the image conditionals are coded incorrectly a graphical one could bear no relation whatsoever to actual battery level.
i have the same problem, the player shut down when the baterry meter show 40 % and when i just finish charge it it show 80%
Then that is very odd, and not having a Sansa I don't know.
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One suggestion would be for them to fully charge, then run a full battery bench, so we could see the actual exact behaviour, as well as what voltage is being treated as 40%, and so on.
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If the image conditionals are coded incorrectly a graphical one could bear no relation whatsoever to actual battery level.
This is the WPS I am currently using. The only change I made was to the time display in AM/PM instead of 24hr.
http://www.rockbox-themes.org/data/176x220x16/Cassette.zip
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I'm afraid I'm not going to try to check a WPS when using one with a % readout is possible. However as Llorean suggested, a proper battery bench would be a much better and more reliable way of diagnosing this.