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To: "Dan Langille" <dan@langille.org>
In-reply-to: Your message of "Sat, 17 Jun 2006 18:12:49 EDT."
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Date: Sat, 17 Jun 2006 16:54:57 -0700
From: "Kevin Oberman" <oberman@es.net>
Message-Id: <20060617235457.D6AFA45043@ptavv.es.net>
Cc: freebsd-mobile@freebsd.org
Subject: Re: ThinkPad - UltraBay battery magic 
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> When installing a 2nd battery (i.e in the UltraBay after removing the 
> CD drive) in a ThinkPad, I think there's some magic you must invoke 
> to get the system to notice the additional power resource.
> 
> Any ideas?

The code to allow ACPI to add batteries has yet to be written (or committed, 
at least). If the system is booted with 2two batteries, both will be seen. 
Even it one is removed and then returned, it will be seen. But if a system is 
booted with a single battery, ACPI will not ever see the second battery.

Please note that the second battery WILL be seen by the hardware and both 
charged and used.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634