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Wiki > Main > SansaRuntime (r83)

Sansa Battery Runtimes

Introduction

This page documents runtime tests performed by Sansa users. The intention is to compare battery runtimes across a range of conditions and SVN revisions.

For test methodology see BatteryRuntime

Results

Model RB Runtime Sandisk Runtime Format Date Of Test Comments
Sansa c200  
c250 11h 55min ? Repeat album (58.7 MB .ogg vorbis) 2007-12-22 SVN 15957
c250 10h 22min ? Repeat album (55Mb MP3, ~160k) 2008-01-21 SVN 16119
c250 11h 14min ? Repeat album (55Mb MP3, ~160k) 2008-01-21 SVN 16119 plus e200-test-02 w/ c200 defines
c250 14h 36min ? Repeat root playlist (637MB MPC, ~200kB/s) 2008-02-25 r16410-080224 (Battery Benchmark)
c250 12h 49min 15h 34min Repeat playlist (600MB, MP3 ~160k) 2008-04-11 SVN 16841 plus batt_bench_v3 patch (Battery Benchmark) by TomekWasilczyk
c240 14h 01min ? Repeat album (57.6 MB MP3, ~208kb/s) 2008-07-20 SVN 18085 tested with FS#9155. Default settings, -20 dB, hold on, display off. (Battery Benchmark) by BertrikSikken
c240 14h 41min ? Repeat album (57.6 MB MP3, ~208kb/s) 2008-07-19 SVN 18085 plus c200 display disable patch, tested with FS#9155. Default settings, -20 dB, hold on, display off. (Battery Benchmark) by BertrikSikken
c240 16h 00min ? Repeat album (57.6 MB MP3, ~208kb/s) 2008-09-22 SVN 18560. Default settings, -20 dB, hold on, display off. (Battery Benchmark) by BertrikSikken
c240 14h 59min ? Repeat album (52.9 MB OGG, ~146kb/s) 2008-07-27 SVN 18139 plus c200 display disable patch, tested with FS#9155. Default settings, -20 dB, hold on, display off. (Battery Benchmark) by BertrikSikken
Sansa c200v2  
c240v2 9h 16min ? Repeat album (MP3, 320kb/s) 2010-04-08 SVN 25499 (bench says 25498 since it was compiled before committing) , Default settings, hold off, display off, playback status screen (Battery Benchmark) by TobiasDiedrich
c240v2 9h 39min ? Repeat album (MP3, 320kb/s) 2010-04-09 SVN 25499 (bench says 25498 since it was compiled before committing), Default settings, hold off, display off, main menu (Battery Benchmark) by TobiasDiedrich
Sansa e200  
e280 15h 53min ? Repeat album (90mb .ogg vorbis q8) 2007-08-31 SVN 14552 Battery Bench (it's the same file I uploaded in SandiskE200BatteryMeasurements)
e250 10h 45min 15h 00min Repeat album (80 MB) LAME -APS (191kbs average) 2007-11-19 SVN 15652 No WPS, 16 Ohm phones @ -20 db, EQ off, crossfeed off, backlight off, etc. Battery Bench #1, Battery Bench #2
e280 16h 47min ? Repeat album (FLAC) 2008-01-21 SVN 16105 Old Default Theme, Hold On, -20db, EQ off, crossfeed off, backlight off, etc. Battery Benchmark
e280 20h 53min ? Repeat album (FLAC) 2008-01-15 SVN 16095 + Device Disable patch v10 - Old Default Theme, Hold On, -20db, EQ off, crossfeed off, backlight off, etc. Battery Benchmark
e270 17h 56min   Multiple albums q2 Vorbis 2008-01-20 SVN 16103 + device_disables_v11.patch - Custom theme, -30dB, EQ off, crossfeed off. -- PhilLight - 22 Jan 2008
e270 17h 07min 14h 11min
14h 16min
Multiple albums 192kbps MP3
Same playlist in Rockbox & OF
2008-01-22 SVN 16119 + e200-test-02.patch - Custom theme, -30dB, EQ off, crossfeed off. Battery Benchmark
-- PhilLight - 22 Jan 2008
e280 20h 57min ? Repeat album (FLAC) 2008-01-22 SVN 16119 + Device Disable patch v13 ("Sansa test 2", to be specific) - Old Default Theme, Hold On, -20db, EQ off, crossfeed off, backlight off, etc. Battery Benchmark
e280 15h 16min ? Repeat album (90mb .ogg vorbis q8) 2008-01-30 SVN 16143 Battery Benchmark
e280 18h 22min ? Repeat album (90mb .ogg vorbis q8) 2008-01-30 SVN 16143 + Device Disable patch v13 Battery Benchmark
e260 16:28:47 14:08:41 Repeat album (MP3 192 kbps 75 MB) 2008-02-11 SVN 16287, Both with settings reset, Rockbox with Cabbie v2 WPS, both with the same album on repeat, and with hold on therefore screen off. Both were measured by plugging the headphone out into the H140 and recording it smile AlexParker
e260 17h 07min ? Repeat playlist (750MB q6 Ogg Vorbis, 173kbps average) 2008-07-26 SVN r18117 + batt_bench_v3 patch. Reset settings with last.fm log and replaygain enabled, -15dB, hold on (screen off). Battery Benchmark. -- NickTryon - 26 Jul 2008
e280 19h 19min ? Repeat album (82MB mp3 VBR) 2008-09-22 SVN 18560 Battery Benchmark
e260 16h 43min ? Repeat playlist (750MB q6 Ogg Vorbis, 173kbps average) 2008-10-07 3.0. Reset settings with last.fm log and replaygain enabled, -15dB, hold on (screen off). Battery Benchmark. -- NickTryon - 07 Oct 2008
e270 19h 22min ? Multiple albums q2 Vorbis 2008-11-25 SVN 19203 - Custom theme, -35dB, Caption backlight on, EQ off, crossfeed off. Battery Benchmark -- PhilLight - 25 Nov 2008
e280 22h 28min ? mp3 VBR ~192kbps 2008-12-15 SVN 19396 - Cabbiev2, -20dB, default settings Battery Benchmark -- JohannesLinke - 15 Dec 2008
e280 18h 03min ? ogg VBR ~256kbps 2008-12-20 SVN 19396 - Cabbiev2, -20dB, default settings, showing the wps Battery Benchmark -- JohannesLinke - 31 Dec 2008
e280 19h 51min ? ogg VBR ~256kbps 2008-12-20 SVN 19396 - Cabbiev2, -20dB, default settings, showing the menu Battery Benchmark -- JohannesLinke - 31 Dec 2008
e280 16h 51min ? ogg VBR ~256kbps 2008-12-20 SVN 19396 - FreeState? + some %pm-tags, -20dB, default settings, showing the wps Battery Benchmark -- JohannesLinke - 31 Dec 2008
e280 18h 05min ? ogg VBR ~256kbps 2008-12-20 SVN 19396 - FreeState? + some %pm-tags, -20dB, default settings, showing the wps, with FS#8532 Battery Benchmark -- JohannesLinke - 31 Dec 2008
e280 19h 53min ? ogg VBR ~256kbps 2008-12-20 SVN 19396 - empty wps with %wd, -20dB, default settings, Battery Benchmark -- JohannesLinke - 31 Dec 2008
Sansa e200v2          
e260v2 11h 17min 19h 05min Repeat album mp3 192kbps 2009-10-03 SVN r22896 - default settings, e260v2-r22896-battery_bench.txt -- MichaelChicoine - 04 Oct 2009
e260v2 11h 37min   Repeat album mp3 192kbps 2009-10-16 SVN r23198 - default settings, e260v2-r23198-battery_bench.txt -- MichaelChicoine - 16 Oct 2009
e260v2 10h 37min   Repeat album mp3 192kbps 2010-01-31 SVN r24382 - default settings, e260v2-r24382-battery_bench.txt -- MichaelChicoine - 31 Jan 2010
e260v2 13h 09min   Repeat album mp3 192kbps 2010-03-08 SVN r25069 - default settings, http://www.rockbox.org/wiki/bin/viewfile/Main/SansaRuntime?filename=battery_bench.txt;rev=1 -- MichaelChicoine - 2010-03-09
e260v2 14h 17min   Repeat album mp3 192kbps 2010-05-06 SVN r25836 - default settings, e260v2-r25836-battery_bench.txt -- MichaelChicoine - 2010-05-06
e260v2 16h 12min   Repeat album mp3 192kbps 2010-05-09 SVN r25904 - default settings, battery_bench.txt -- MichaelChicoine - 2010-05-09
Sansa Fuze v1          
Fuze v1, 2GB 11h 52min 13h 42min Repeat: 12 ~5-minute oggs, VBR, ~192kbps 2009-11-16 r23620, directory cache, Artbox Widgets theme, -30dB, occasional interaction to turn the screen on (playback not changed or interrupted, no additional disk activity); Fuze Battery Bench - r23620; -- MichaelCarr - 2009-11-16
Fuze v1, 2GB 13h 36min ? Repeat album mp3 VBR, ~270kbps 2011-02-23 3.7.1, volume 0dB, slightly changed EQ, battery_bench -- TomaszCetnarowski - 23 Feb 2011
Fuze v1, 4GB 14h 44min 22h 17min Repeat album mp3 320kbps 2010-05-10 SVN r25845 - volume 0dB, battery_bench -- RafaelCarre - 2010-05-10
Sansa Fuze v2          
Fuze v2, 8GB+16GB 20h 43min 22h 13min Repeat Album, mp3 LAME 3.97 V2 2010-07-07 SVN r26906, volume -15dB, No EQ, Crossfade+Crossfeed at default settings. EQ used with Fuze V2 OF. FuzeV2_rbSVN26906_battery_bench.txt -- JosephSatchton - 2010-07-09...IEMs plugged into device for test.
Fuze v2, 8GB+16GB 21h 39min See Above ^ Repeat Album, mp3 LAME 3.97 V2 2010-08-19 SVN r26906, volume -15db, No EQ, Crossfade+Crossfeed at default settings. HOWEVER, this test supercedes previous RB test above - backlight settings on RB were adjusted so backlight would not activate during song changes. battery_bench_v2Fuze_CorrectBacklightSettings.txt -- JosephSatchton - 2010-08-...IEMs plugged into device for test.

Fuze v2, 8GB+16GB 22h 40min See Above ^ Repeat Album, OGG, Q6 2010-08-20 SVN r26906, volume -15dB, No EQ, Crossfade+Crossfeed at default settings. battery_bench_oggv6.txt -- JosephSatchton - 2010-08-20...IEMs plugged into device for test.
Fuze v2, 8GB 22h 7min   Repeat Album, MP3 LAME 3.98.4 V0 2010-08-20 SVN r27847, volume -25dB, No EQ. http://www.rockbox.org/wiki/pub/Main/SansaRuntime/battery_bench.txt -- EricBoyer - 2010-08-21
Sansa Clip v1          
Clip v1, 1GB 8h 31min ? Repeat album ogg ~160 kbps 2010-01-31 SVN r24407, default settings, -20dB, Clip battery bench - r24407; -- BertrikSikken - 2010-02-01
Clip v1, 1GB 8h 16min ? Repeat album mp3 ~212 kbps 2010-02-03 SVN r24407, default settings, -20dB, Clip battery bench - r24407; -- BertrikSikken - 2010-02-03
Clip v1, 1GB 8h 03min ? Repeat album mp3 ~212 kbps 2010-02-04 SVN r24504, default settings, -20dB, with FS#10906 (use extra PLL for higher sample rate accuracy) Clip battery bench - r24407; -- BertrikSikken - 2010-02-04
Clip v1, 1GB 10h 58min ? Repeat album ogg ~160 kbps 2010-05-08 SVN r25896, default settings, -20dB, with FS#11246 (stop clock when SDRAM is idle) Clip battery bench - r25896; -- BertrikSikken - 2010-05-08
Clip v1, 2GB 5h 29min 14h 59min Repeat album, mp3, 256kbps, 122MB 2010-02-01 SVN r24401 - default settings, Bench1, Bench2, -- JouniPaulus - 2010-02-04
Clip v1, 2GB 6h 57min   Repeat album, mp3, 256kbps, 122MB 2010-02-15 SVN r24572M - default settings, cycle radio explicitly on and off before test run, Bench, -- JouniPaulus - 2010-02-15
Clip v1, 2GB 9h 02min ? Repeat album mp3 128 kbps 2010-02-09 SVN r24571, defaults settings, -33dB, Clip battery bench - r24571, -- AlexParker - 2010-02-10
Clip v1, 2GB 9h 39min   Repeat album, mp3, 256kbps, 122MB 2010-12-18 SVN r28848 - default settings, Bench -- JouniPaulus - 2010-12-18
Sansa Clip v2          
Clip v2, 4GB 13h 0min 16h 2min Repeat album Lame V2 2011-09-29 SVN r29679, stock headphones, same music and similar volume for RB and OF tests -- MichaelGiacomelli
Sansa Clip+          
Clip+, 4GB 9h 18min ? Repeat album ogg ~112 kbps 2010-05-11 SVN r25939, default settings, -20dB, frequency scaling disabled, Clip+ battery bench - r25939; -- JackHalpin - 2010-05-12
Clip+, 2GB 17h 20min ? Repeat album ogg ~128 kbps 2010-07-04 SVN r27257, default settings, -25dB, PLL B enabled for audio, Clip+ battery bench - r27257 -- BertrikSikken
Clip+, 2GB 17h 21min ? Repeat album ogg ~128 kbps 2010-07-05 SVN r27257, default settings, -25 dB, plain SVN, Clip+ battery bench - r27257 -- BertrikSikken
Clip+, 2GB 17h 17min ? Repeat album ogg ~160 kpbs 2010-07-23 SVN r27524, default settings, -25 dB, plain SVN, Clip+ battery bench - r27524 -- BertrikSikken

This is a "COMBO4E" Clip+ variant with RDA5802 tuner and "new" OLED controller.
Clip+, 4GB+2GB 15h 22min   Repeat Album, LAME MP3 3.98.4 V0 2010-8-22 SVN r27840, volume 0dB, No EQ, Album was on microSD Card, Battery Bench .txt -- EricBoyer - 2010-08-22
Clip+, 4GB 16h 5min ? Repeat playlist, ogg ~192 kbps (-q6) 2010-09-25 SVN r28154, volume between -65 dB and -55 dB, No EQ, I used the player nearly normally (playlist generation, database browsing, etc.) -- BenjaminDru?
Clip+, 2GB 17h 14min ? Repeat track, Flac -q8 2010-10-07 SVN r28208, volume between 15-20 dB.- clipplus-r28208_-_2010-10-07.txt -- YuryAntonov
Clip+, 8GB 16h 27min   Repeat Album, Flac 2010-10-10 SVN r28220, volume -15 dB, bass 15dB, trebble 7dB, no EQ. clipplus-8gb-svn-r28220-2010-10-10.txt by dellik
Clip+, 4GB 16h 30min 10h 26min Repeat Album, LAME -V2 2011-6-13 SVN r29870, volume -10 dB. No SD card, sd variant 0 by saratoga
Clip+, 4GB 16h 15min   Repeat Album, LAME -V2 2011-6-13 SVN r29870, volume -10 dB. 8GB SD card, album on internal storage, sd variant 0 by saratoga
Clip+, 4GB 14h 53min 10h 26min Repeat Album, LAME -V2 2011-11-5 SVN r30904M, PCLK=40MHz, volume -30 dB. No SD card, sd variant 0 by saratoga
Sansa Connect          
Connect, 4GB 7h 31min 10h 11min Repeat Album, WMA (100.7 MB) 2011-11-29 SVN r31089M. Playback from SD card. Added aditional udelay in avr's spi_txrx. Dangerous voltage since 31373 is 5%, omit time for 4%-0%.
Connect, 4GB 8h 20min 10h 11min Repeat Album, WMA (100.7 MB) 2011-12-16 SVN r31323. Playback from SD card.
Connect, 4GB 8h 37min 10h 11min Repeat Album, WMA (100.7 MB) 2011-12-18 SVN r31352m. Playback from SD card. Changes were later committed as r31357 and r31358. Dangerous voltage since 31373 is 5%, omit time for 4%-0%.
Connect, 4GB 9h 2min 10h 11min Repeat Album, WMA (100.7 MB) 2011-12-19 SVN r31360m. Playback from SD card. Changes were later committed as r31373
Connect, 4GB 9h 19min 10h 11min Repeat Album, WMA (100.7 MB) 2011-12-22 SVN r31394m. Playback from SD card. Changes were later committed as r31404
Sansa Fuze+          
Sansa Fuze+ 10h 48min ? Repeat 7 identical pinknoise's files, MP3 CBR 256 kbps (128.2 MB) 2011-12-14 SVN r31210M-111211 + backtrace patch. Playback internal storage
Sansa Fuze+ 16h 22min ? Repeat playlist (100+ tracks), MP3 CBR ~192 kbps (700 MB) 2012-08-29 GIT 53566c0M-120829
Sansa Fuze+ 17h 21min ? Repeat playlist vorbis vbr ~90kbps, no earphones 2013-01-12 git 2ef7a54-130111

Additional observation

Sansa clip+ (8GB) - OF charging and discharging borders range from ~4.15v (fully charged) to ~3.3v (OF won't boot anymore with a battery low shutdown screen) - voltages are from the battery debug menu. With USB attached, the voltages shown in rockbox are assumingly not the real values of the battery. (r25003) (JoelGarske - 2010-03-04)

Battery discharge profile

Generated from C240v2 battery bench. Used
  sed -e 's@^[0-9]\+:[0-9]\+:[0-9]\+, *\([0-9]\+\), *[0-9]\+%, *[0-9]\+:[0-9]\+, *\([0-9]\+\),.*@\1 \2@'
to preprocess the battery bench output for gnuplot.

Gnuplot command:
set ylabel 'mV'
set xlabel '%'
plot 'c240v2_battery_run1.data' using (100*(33366-$1)/33366):2 title 'c240v2 bench run 1, 9h16m', 'c240v2_battery_run2.data' using (100*(34775-$1)/34775):2 title 'c240v2 bench run 2, 9h39m', 'c240v2_battery_calibration.data' using 1:2 title 'calibration from powermgmt-c240v2.c r25540', 'c240v2_battery_new_calibration.data' using 1:2 title 'new calibration'

c240v2_battery_bench_percent.png

I Attachment Action Size Date Who Comment
FuzeV2_rbSVN26906_battery_bench.txttxt FuzeV2_rbSVN26906_battery_bench.txt manage 150.6 K 08 Jul 2010 - 14:29 JosephSatchton  
battery_bench.txttxt battery_bench.txt manage 84.0 K 21 Aug 2010 - 21:56 EricBoyer Battery Bench for Fuze v2
battery_bench_Clip_8-22-10.txttxt battery_bench_Clip_8-22-10.txt manage 61.5 K 22 Aug 2010 - 21:54 EricBoyer Battery Bench for Clip+, LAME MP3 3.98.4 V0
battery_bench_charge.txttxt battery_bench_charge.txt manage 19.2 K 13 Jan 2013 - 17:32 KurtRoeckx Fuze+ charging profile
battery_bench_discharge.txttxt battery_bench_discharge.txt manage 69.2 K 13 Jan 2013 - 17:27 KurtRoeckx Fuze+ with 2ef7a54-130111, no earphones, ogg vbr ~90kbps
battery_bench_oggv6.txttxt battery_bench_oggv6.txt manage 90.0 K 20 Aug 2010 - 21:33 JosephSatchton  
battery_bench_v2Fuze_CorrectBacklightSettings.txttxt battery_bench_v2Fuze_CorrectBacklightSettings.txt manage 86.0 K 19 Aug 2010 - 20:38 JosephSatchton  
c240v2_battery_bench_percent.pngpng c240v2_battery_bench_percent.png manage 50.9 K 08 Apr 2010 - 19:24 TobiasDiedrich Battery discharge profile, scaled to percent remaining and compared with percent_to_volt_discharge from powermgmt-c200v2.c svn r25540 compared to new profile
c240v2_battery_calibration.datadata c240v2_battery_calibration.data manage 0.1 K 08 Apr 2010 - 18:32 TobiasDiedrich percent_to_volt_discharge calibration data from powermgmt-as3525.c r25499
c240v2_battery_run1.datadata c240v2_battery_run1.data manage 6.0 K 08 Apr 2010 - 18:34 TobiasDiedrich data from c240v2 run1 for gnuplot
c240v2_battery_run2.datadata c240v2_battery_run2.data manage 6.3 K 08 Apr 2010 - 18:34 TobiasDiedrich data from c240v2 run2 for gnuplot
c240v2_svn25499_battery_bench_run1.txttxt c240v2_svn25499_battery_bench_run1.txt manage 36.6 K 08 Apr 2010 - 17:30 TobiasDiedrich  
c240v2_svn25499_battery_bench_run2.txttxt c240v2_svn25499_battery_bench_run2.txt manage 38.2 K 08 Apr 2010 - 17:31 TobiasDiedrich  
clipplus-8gb-svn-r28220-2010-10-10.txttxt clipplus-8gb-svn-r28220-2010-10-10.txt manage 65.7 K 10 Oct 2010 - 18:08 YuryAntonov  
clipplus-r28208_-_2010-10-07.txttxt clipplus-r28208_-_2010-10-07.txt manage 68.7 K 07 Oct 2010 - 06:00 YuryAntonov  
connect_r31089m_battery_bench.txttxt connect_r31089m_battery_bench.txt manage 26.0 K 29 Nov 2011 - 20:12 TomaszMon Sansa Connect battery bench (WMA, 100.7MB) r31089M
connect_r31323_battery_bench.txttxt connect_r31323_battery_bench.txt manage 28.2 K 17 Dec 2011 - 09:07 TomaszMon Sansa Connect battery bench (WMA, 100.7MB) r31323
connect_r31352m_battery_bench.txttxt connect_r31352m_battery_bench.txt manage 30.5 K 19 Dec 2011 - 06:46 TomaszMon Sansa Connect battery bench (WMA, 100.7MB) r31352m (changes were later committed as r31357 and r31358)
connect_r31360m_battery_bench.txttxt connect_r31360m_battery_bench.txt manage 30.5 K 20 Dec 2011 - 06:32 TomaszMon Sansa Connect battery bench (WMA, 100.7MB) r31360m (changes were later committed as r31373)
connect_r31394m_battery_bench.txttxt connect_r31394m_battery_bench.txt manage 38.4 K 22 Dec 2011 - 18:09 TomaszMon Sansa Connect battery bench (WMA, 100.7MB) r31394m (changes were later committed as r31404)
fuzeplus_battery_bench_MP3_CBR_256_2011_12_14.txttxt fuzeplus_battery_bench_MP3_CBR_256_2011_12_14.txt manage 41.5 K 14 Dec 2011 - 13:23 JeanLouisBiasini  
fuzev1_battery_bench_371.txttxt fuzev1_battery_bench_371.txt manage 54.4 K 23 Feb 2011 - 13:49 TomaszCetnarowski Fuze v1, repeated album MP3 VBR, ~270kbps
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r83 - 13 Jan 2013 - 17:32:10 - KurtRoeckx
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