From owner-freebsd-questions@FreeBSD.ORG Tue Nov 23 22:09:19 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E538B1065673 for ; Tue, 23 Nov 2010 22:09:19 +0000 (UTC) (envelope-from gnrp@physik.tu-berlin.de) Received: from mail.tu-berlin.de (mail.tu-berlin.de [130.149.7.33]) by mx1.freebsd.org (Postfix) with ESMTP id 95B308FC08 for ; Tue, 23 Nov 2010 22:09:19 +0000 (UTC) X-tubIT-Incoming-IP: 130.149.58.163 Received: from mail.physik-pool.tu-berlin.de ([130.149.58.163] helo=mail.physik.tu-berlin.de) by mail.tu-berlin.de (exim-4.69/mailfrontend-a) with esmtp for id 1PL138-0000pL-BX; Tue, 23 Nov 2010 23:09:18 +0100 Received: from localhost (localhost.physik-pool.tu-berlin.de [127.0.0.1]) by mail.physik.tu-berlin.de (Postfix) with ESMTP id F0E7C11406 for ; Tue, 23 Nov 2010 23:09:16 +0100 (CET) X-Virus-Scanned: amavisd-new at physik.tu-berlin.de Received: from mail.physik.tu-berlin.de ([127.0.0.1]) by localhost (mail.physik-pool.TU-Berlin.DE [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id q+5cvrRCHUvd for ; Tue, 23 Nov 2010 23:09:14 +0100 (CET) Received: from adolfputzen (dhcp94.vr.in-berlin.de [217.197.81.94]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.physik.tu-berlin.de (Postfix) with ESMTPSA id 0DA1A11404 for ; Tue, 23 Nov 2010 23:09:14 +0100 (CET) Date: Tue, 23 Nov 2010 23:09:08 +0100 From: Julian Fagir To: freebsd-questions@freebsd.org Message-ID: <20101123230908.5475dfe5@adolfputzen> In-Reply-To: <20093_1290549773_4CEC3A0D_20093_90_1_D9B37353831173459FDAA836D3B43499A7AF8D3E@WADPMBXV0.waddell.com> References: <20093_1290549773_4CEC3A0D_20093_90_1_D9B37353831173459FDAA836D3B43499A7AF8D3E@WADPMBXV0.waddell.com> X-Mailer: Claws Mail 3.7.6 (GTK+ 2.14.7; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/+k5jp+045UyaeskIthd_nbn"; protocol="application/pgp-signature"; micalg=PGP-SHA1 Subject: Re: How long laptop battery should live ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Nov 2010 22:09:20 -0000 --Sig_/+k5jp+045UyaeskIthd_nbn Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi, > I just looked into a batt for my daughters dell, her li-on lasted 14 > months, now on "full" charge it only lasts 40 mins... Terrible. If you > can get 2 years out of a batt ur lucky. I read some tech docs on li-on > cells; if you can store at 50% charge in the fridge and when in use don't > let it run down 100%. in my opinion, there's just one rule: Don't trust anybody. There are so many people who claim do be professionals, who say totally contrary things. On the one hand, there are many 'facts' which are falsely applied to LiIon-batteries which don't apply. On the other hand, there are many stories people remember from years long ago or from cheap notebooks without an 'intelligent' battery. Just to add another story from me: I have two batteries in my notebook, the one is always drowned to zero before the other one is being used (no, there are no possibilities to control that in my case). The one being drowned first, though not that often used that hard (appr once a week) was nearly dead after 1 1/2 years (6/23Wh), while the other one still has 23/27Wh. Regards, Julian --Sig_/+k5jp+045UyaeskIthd_nbn Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkzsO4QACgkQFV4nWcOPv/D19gCghigcY9K0ZfJjvZJ0mKqTTGi9 A5oAn02xG8x+44F1cos9qTKReDsDtqna =yAu4 -----END PGP SIGNATURE----- --Sig_/+k5jp+045UyaeskIthd_nbn--