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Wiki > Main > SamsungRuntime

---+!! Samsung Battery Runtimes

%TOC%

---++ Introduction

This page documents runtime tests performed by Samsung 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*|*OF Runtime*|*Format*|*Date Of Test*|*Comments*|
|*YH-925*|  *(Samsung rated it for 10h)*  |||||
|  YH-925  |  7h 58min|    ?| Repeat album (70MB MP3 192kbit/s) |2009-08-07 |SVN r22194 before calibration (which shouldn't affect the runtime |

%BR%
---++ Graphs
   *Charging Analysis*: As you can see, the hardware stops charging at around 8700, which makes around 2:30h needed for charging. It restarts charging at ~4140mV and reaches the maximum after 5:00h. Unfortunately, battery bench apparently didn't catch the actual peek voltage. Therefore, a charging cycle seems to take 2,5h and should be hit accurately for a maximum runtime.

<img src="%ATTACHURL%/yh925-charging.PNG" alt="Voltage evolution graph while charging" />

   *Discharging Analysis*: The curve isn't quite linear, and there's a big drop at the end. At least, I was able to figure out the peek voltage here. The hardware turned off itself at the very end.

<img src="%ATTACHURL%/yh925-discharging.PNG" alt="Voltage evolution graph while discharging" />

I	Attachment	Action	Size	Date	Who	Comment
ods	yh925-charging-stats.ods	manage	927.3 K	07 Aug 2009 - 14:01	ThomasMartitz
PNG	yh925-charging.PNG	manage	43.0 K	07 Aug 2009 - 14:00	ThomasMartitz	charging analysis
PNG	yh925-discharging.PNG	manage	40.0 K	07 Aug 2009 - 14:00	ThomasMartitz	discharging analysis

r1 - 07 Aug 2009 - 14:10:50 - ThomasMartitz