• Status Closed
  • Percent Complete
  • Task Type Patches
  • Category Battery/Charging
  • Assigned To No-one
  • Operating System iPod 4G Color
  • Severity Low
  • Priority Very Low
  • Reported Version Daily build (which?)
  • Due in Version Version 3.1
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: Rockbox
Opened by Yoshihisa Uchida - 2008-06-04
Last edited by Andree Buschmann - 2010-02-16

FS#9072 - iPod color/photo battery voltage invalid

For iPod color/photo, the following values invalid.

  1. battery_level_dangerous
  2. battery_level_shutoff
  3. percent_to_volt_discharge
  4. percent_to_volt_charge

This patch file was made based on the test result
of using my iPod color.

Closed by  Andree Buschmann
2010-02-16 22:54
Reason for closing:  Accepted
Additional comments about closing:  

Suubmitted with r24709

Andree Buschmann commented on 2008-06-04 19:33

Can you provide battery benchs with old and new calibrated settings?

And next question: Why is the lowest tableized battery voltage (3230mV) below the shutdown limit voltage (3300V)? This would lead to never reach 0% capacity but shutting down at ~2% capacity.

Yoshihisa Uchida commented on 2008-06-08 06:49

I'm sorry that the answer is late.

The result of "Battery bench" is sent (I use the firmware which the patch applied).

In my experiment, the Rockbox doesn't move in the value whose voltage of the battery of iPod is smaller than that of 3230mV.
Therefore, it thought whether I should shutdown the Rockbox at about 3300mV in the voltage of the battery.

Yoshihisa Uchida commented on 2008-06-09 02:33

I send the result of the battery bench where the firmware of original Rockbox (svn 17703) was used.

Yoshihisa Uchida commented on 2008-11-23 15:33

The battery bench was executed by using new Rockbox (svn. 19103).
The value of voltage of iPod color/photo was corrected by using the result of the battery bench.


player: iPod photo 30G (ModelNum: M9829/J) 27.4GB free
music file format: ogg vorbis Quality=6 (230kbis/s) 


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