From owner-freebsd-mobile@FreeBSD.ORG Fri Aug 26 07:55:51 2005 Return-Path: X-Original-To: freebsd-mobile@freebsd.org Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1674E16A41F for ; Fri, 26 Aug 2005 07:55:50 +0000 (GMT) (envelope-from david@landgren.net) Received: from sferics.mongueurs.net (sferics.mongueurs.net [81.80.147.197]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9E81943D45 for ; Fri, 26 Aug 2005 07:55:49 +0000 (GMT) (envelope-from david@landgren.net) Received: from [127.0.0.1] (exo.bpinet.com [81.80.147.206]) by sferics.mongueurs.net (Postfix) with ESMTP id C0DBDA926; Fri, 26 Aug 2005 09:55:48 +0200 (CEST) Message-ID: <430ECB03.9000508@landgren.net> Date: Fri, 26 Aug 2005 09:55:47 +0200 From: David Landgren Organization: The Lusty Decadent Delights of Imperial Pompeii User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Dan Langille References: <430E4967.20355.1BF72257@localhost> In-Reply-To: <430E4967.20355.1BF72257@localhost> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-mobile@freebsd.org Subject: Re: long flight; need battery power! X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Aug 2005 07:55:51 -0000 Dan Langille wrote: > In September, I'll have a couple of long flights. I'll be using my > IBM ThinkPad T41 to catch up on some long delayed FreshPorts > enhancements. Apart from charging whenever I can, I'm afraid I'll > get only about 140-150 minutes from my battery. > > Apart from buying a second battery, any ideas? Turn off wifi and all networking and turn down the screen brightness to the absolute minimum. Use the console (and not X), kill all unnecessary daemons. This will increase the chance the the CPU can enter low consumption mode while you ponder your code. That said, I doubt this will buy you much, probably less than half an hour. You can always try recharging the battery in the toilet using the shaver socket :) David