Difference between revisions of "Ultrabay 2000 Battery"

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=== UltraBay 2000 Battery ===
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=== Ultrabay 2000 Battery ===
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This is a battery that slides into a supported UltraBay 2000.
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This is a battery pack that slides into an Ultrabay 2000 with power interfacing pins.
  
 
=== Features ===
 
=== Features ===
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* 10.8V Lithium-Ion
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* Battery specification: 3.2Ah or 3.6Ah, 10.8V, 34.56Wh or 38.88Wh
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* 9 cells
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* Battery cell count: Nine, 3.6V lithium-ion polymer prismatic cell
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* Up to 3 hours of battery life
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* Battery run time: up to 3 hours
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* Weight: 268g (0.59 lbs)
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* Battery charge time: up to 2 hours
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* Charge time: 2.0 h
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* Weight: 268 grams or 0.59 pounds
 
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[[image:ultrabay2000battery.gif|UltraBay 2000 Battery]]
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[[image:ultrabay2000battery.gif|Ultrabay 2000 battery]]
 
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=== IBM Partnumbers ===
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=== Part numbers ===
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*Marketing PN: 02K6646
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==== Sanyo - 3.6Ah, 10.8V, 38.88Wh ====
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*FRU PN: 02K6645
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* 02K6817, 02K6818, 02K6819
  
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=== Linux Support ===
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==== Sanyo - 3.2Ah, 10.8V, 34.56Wh ====
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The second battery is correctly detected by either the APM or ACPI subsystem.
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* 02K6645, 02K6646
  
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However, the Linux ACPI subsystem only scans for batteries on boot. This means that the second battery must be present at boot time, or you will not be able to get any info for it.
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=== Usage and Linux support ===
 +
See [[How to use UltraBay batteries]].
  
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We need to find a way of telling the ACPI subsystem to rescan for batteries.
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== Models supporting this accessory ==
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* {{A20m}}, {{A20p}}, {{A21e}}, {{A21m}}, {{A21p}}, {{A22e}}, {{A22m}}, {{A22p}}, {{A30}}, {{A30p}}, {{A31}}, {{A31p}}
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* {{T20}}, {{T21}}, {{T22}}, {{T23}}, {{T30}}
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* {{R32}}, {{R40}}
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* [[UltraBase X3]]
  
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With kernel 2.6.14.2 (possibly only with [[ibm-acpi]]) there is a sysfs file: {{path|/sys/firmware/acpi/namespace/ACPI/_SB/PCI0/LPC/EC/BAT1/eject}}. There isn't one for BAT0, but {{cmdroot|cat /proc/acpi/battery/BAT0/*}} shows {{cmdresult|not present}} when there is no internal battery.
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[[Category:Ultrabay Devices]]
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For BAT1 all the states go to 0, critical, etc. .
 
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{{cmdroot|echo 1 > /sys/firmware/acpi/namespace/ACPI/_SB/PCI0/LPC/EC/BAT1/eject}} will remove {{path|/proc/acpi/battery/BAT1}} and turn off the UltraBay led. Interestingly the battery will still be discharging (charging not tested) until it is physically removed.
 
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Also, if you compile the battery module of ACPI as a module, boot with the UltraBay battery present, remove the UltraBay battery (without doing the eject above), {{path|/proc/acpi/battery/BAT1}} is still there, while after {{cmdroot|rmmod battery && modprobe battery}} {{path|/proc/acpi/battery/BAT1}} is gone (BAT0 is back). Put the battery back in and {{path|/proc/acpi/battery/BAT1}} is still missing, do {{cmdroot|rmmod battery && modprobe battery}} and {{path|/proc/acpi/battery/BAT1}} is back.
 
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If you boot without the second battery {{path|/proc/acpi/battery/BAT1}} never shows up.
 
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If you eject using the sysfs file above, <tt>BAT1</tt> disappears from both {{path|/proc}} and {{path|/sys}} and never comes back.
 
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Test machine: T23.
 
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The battery status should also be accessible via [[SMAPI support for Linux|tp_smapi]], independently of the ACPI system. {{HELP|Please report if tp_smapi support for the second battery indeed works.}}
 
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=== Supported with ===
 
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*ThinkPad {{A20m}}, {{A20p}}, {{A21e}}, {{A21m}}, {{A21p}}, {{A22e}}, {{A22m}}, {{A22p}}, {{A30}}, {{A30p}}, {{A31}}, {{A31p}}
 
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*ThinkPad {{R30}}, {{R31}}, {{R32}}, {{R40}}
 
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*ThinkPad  {{T20}}, {{T21}}, {{T22}}, {{T23}}, {{T30}}
 
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[[Category:Components]]
 

Revision as of 19:40, 4 April 2020

Ultrabay 2000 Battery

This is a battery pack that slides into an Ultrabay 2000 with power interfacing pins.

Features

  • Battery specification: 3.2Ah or 3.6Ah, 10.8V, 34.56Wh or 38.88Wh
  • Battery cell count: Nine, 3.6V lithium-ion polymer prismatic cell
  • Battery run time: up to 3 hours
  • Battery charge time: up to 2 hours
  • Weight: 268 grams or 0.59 pounds

Ultrabay 2000 battery

Part numbers

Sanyo - 3.6Ah, 10.8V, 38.88Wh

  • 02K6817, 02K6818, 02K6819

Sanyo - 3.2Ah, 10.8V, 34.56Wh

  • 02K6645, 02K6646

Usage and Linux support

See How to use UltraBay batteries.

Models supporting this accessory

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