Rockbox General > Rockbox General Discussion
Sansa Fuze - Ultra short battery life :/
sadzior:
--- Quote from: Dael on May 17, 2010, 05:37:13 PM ---Hello everyone.
Just to report - I'm having the same problem but to a certain extreme. Today my fully charged fuze destroyed the battery in two (and I am in no way kidding) hours. I will try to run the benchmark as soon as I'm able to.
Regards
--- End quote ---
now that will be interesting to see, do it asap!
Etoja:
Hm, I have the same problem - over 2 hours of playing 64-44 mp3 files drains the battery to the end on my freshly charged rockboxed Fuze v.2. Strange...
PS Come to think about it, it might be the incorrect reading of the battery
Dael:
--- Code: ---Battery bench run for Sandisk Sansa Fuze version 3.5.1
07:47:47, 28067, 038%, 03:56, 3642, -, -, -
07:48:48, 28128, 037%, 03:50, 3637, -, -, -
07:49:48, 28188, 036%, 03:44, 3631, -, -, -
07:50:48, 28248, 036%, 03:44, 3626, -, -, -
07:51:48, 28308, 035%, 03:37, 3620, -, -, -
07:52:48, 28368, 035%, 03:37, 3616, -, -, -
07:53:48, 28428, 034%, 03:31, 3611, -, -, -
07:54:48, 28488, 033%, 03:25, 3603, -, -, -
07:55:48, 28548, 033%, 03:25, 3597, -, -, -
07:56:48, 28608, 032%, 03:19, 3590, -, -, -
07:57:48, 28668, 031%, 03:13, 3585, -, -, -
07:58:34, 28714, 030%, 03:09, 3578, -, -, -
07:59:34, 28774, 030%, 03:06, 3573, -, -, -
08:00:35, 28835, 029%, 03:00, 3564, -, -, -
08:01:35, 28895, 028%, 02:54, 3555, -, -, -
08:02:35, 28955, 027%, 02:48, 3548, -, -, -
08:03:35, 29015, 026%, 02:41, 3540, -, -, -
08:04:35, 29075, 025%, 02:35, 3533, -, -, -
08:05:35, 29135, 025%, 02:35, 3526, -, -, -
08:06:35, 29195, 024%, 02:29, 3519, -, -, -
08:07:35, 29255, 023%, 02:23, 3510, -, -, -
08:08:35, 29315, 022%, 02:16, 3501, -, -, -
08:09:35, 29375, 021%, 02:10, 3492, -, -, -
08:10:35, 29435, 020%, 02:04, 3483, -, -, -
08:11:35, 29495, 019%, 01:58, 3473, -, -, -
08:12:35, 29555, 018%, 01:52, 3465, -, -, -
08:13:35, 29615, 016%, 01:39, 3452, -, -, -
08:14:26, 29666, 015%, 01:36, 3443, -, -, -
08:15:26, 29726, 014%, 01:27, 3432, -, -, -
08:16:26, 29786, 013%, 01:20, 3418, -, -, -
08:17:26, 29846, 011%, 01:08, 3403, -, -, -
08:18:26, 29906, 009%, 00:56, 3387, -, -, -
08:19:26, 29966, 007%, 00:43, 3371, -, -, -
08:20:26, 30026, 006%, 00:37, 3356, -, -, -
08:20:44, 30044, 005%, 00:34, 3352, -, -, -
08:21:44, 30104, 003%, 00:18, 3334, -, -, -
08:22:44, 30164, 001%, 00:06, 3315, -, -, -
08:23:44, 30224, 000%, 00:00, 3298, -, -, -
--- End code ---
Sorry can't fit the whole thing in one post and can't doublepost. If you'd tell me how to post the whole thing I would gladly do that. I don't really understand the chart but if it suggests I had a 8 hour long session it's full of bullcrap because the battery lasted 4 hours at max this time.
mc2739:
--- Quote from: Dael on May 19, 2010, 04:17:24 PM ---
--- Code: ---Battery bench run for Sandisk Sansa Fuze version 3.5.1
--- End code ---
--- End quote ---
If you use a current build instead of the release build, you will see better battery run times. There have been several recent commits that have increased run time.
--- Quote ---Sorry can't fit the whole thing in one post and can't doublepost. If you'd tell me how to post the whole thing I would gladly do that. I don't really understand the chart but if it suggests I had a 8 hour long session it's full of bullcrap because the battery lasted 4 hours at max this time.
--- End quote ---
You should be able to upload your battery_bench.txt file with your post. Alternatively, you could use a pastebin site, such as pastebin.com, and then paste the link.
--- Quote ---I don't really understand the chart
--- End quote ---
The first and second columns show the time as reported by the device's real time clock.
The third and fourth columns show the estimated remaining runtime (percentage and hh:mm). These are only accurate if the software has been calibrated to the battery discharge curve.
The fifth column is the battery voltage in millivolts.
Dael:
Of course. Sorry, it's just me being silly. Here is the full report. I will now update the software on my fuze, run another test and literally sit near the player the whole time just to make sure I am not missing anything.
The benchmark starts from 77% which would be the maximum charge I could get.
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