Return-Path: Received: from rly-db06.mx.aol.com (rly-db06.mail.aol.com [172.19.130.81]) by air-db03.mail.aol.com (v121_r4.4) with ESMTP id MAILINDB034-acf494719da3c2; Mon, 15 Dec 2008 22:00:56 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-db06.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDB065-acf494719da3c2; Mon, 15 Dec 2008 22:00:45 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LCQ9u-0002T8-HI for rs_out_1@blacksheep.org; Tue, 16 Dec 2008 02:59:42 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LCQ9t-0002Sz-V5 for rsgb_lf_group@blacksheep.org; Tue, 16 Dec 2008 02:59:41 +0000 Received: from mailout11.t-online.de ([194.25.134.85]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LCQ9t-0005OU-AJ for rsgb_lf_group@blacksheep.org; Tue, 16 Dec 2008 02:59:41 +0000 Received: from fwd01.aul.t-online.de by mailout11.sul.t-online.de with smtp id 1LCQ9q-0000yn-00; Tue, 16 Dec 2008 03:59:38 +0100 Received: from [192.168.2.22] (ZwFuoTZe8hHD4jO+z450EsxePM5mla-5t-GXYMXsvP1XZstFpMzFXdQ-GMUPqtJZJ0@[93.196.60.233]) by fwd01.t-online.de with esmtp id 1LCQ9k-23tfLE0; Tue, 16 Dec 2008 03:59:32 +0100 MIME-Version: 1.0 From: hajo.brandt.dj1zb@t-online.de References:<200812150936540896.09D3A772@smtp.wanadoo.fr> In-Reply-To:<200812150936540896.09D3A772@smtp.wanadoo.fr> To: X-Mailer: T-Online eMail 6.06.0002 Date: 16 Dec 2008 02:28 GMT Message-ID: <1LCQ9k-23tfLE0@fwd01.t-online.de> X-ID: ZwFuoTZe8hHD4jO+z450EsxePM5mla-5t-GXYMXsvP1XZstFpMzFXdQ-GMUPqtJZJ0 X-TOI-MSGID: 6a284f49-13bd-40c6-a926-9cff0feb7700 X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,NO_REAL_NAME=0.55,UNPARSEABLE_RELAY=0.001 Subject: Re: LF: Battery chargers Content-Type: Text/Plain; Charset="ISO-8859-1" Content-Transfer-Encoding: 8Bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-AOL-IP: 193.82.116.20 Dear John, I guess the modern method is to use so-called "delta-U" chargers. They charge quicker and finish charging upon a voltage decline delivered by the "delta-U" detector, otherwise the cell would become too hot because of the charge current which is generally higher than for NiCd cells. There are chargers onthe market which have a delta-U detector for a pair of two cells in common and others which control each cell separately. I have both types but prefer the latter because they show which cells need more time to full charge and may have a defect, too high internal discharge for instance. OK? 73 Ha-Jo, DJ1ZB "John RABSON" schrieb: > For some of my portable equipment I have been using NiCd cells. These are being phased out and it is much easier to get NiMH cells. Do I have buy new chargers or should I be able to use the NiCd ones? > > John > F5VLF > > > > >