Sansa e200 Battery Meter

[scarfy]

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?

[AlexP]

I don't quite undertand the question - Rockbox is reporting 40% battery left, AND is showing a low battery warning at the sametime?

[atomik]

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%

[scharkalvin]

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.

[AlexP]

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.

[Llorean]

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.

[scharkalvin]

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

[AlexP]

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.