Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site houxu.UUCP Path: utzoo!linus!decvax!harpo!ulysses!mhuxl!houxm!houxu!jhv From: jhv@houxu.UUCP (James Van Ornum) Newsgroups: net.wanted Subject: Fast Charging NiCads Message-ID: <327@houxu.UUCP> Date: Sun, 26-Feb-84 21:16:13 EST Article-I.D.: houxu.327 Posted: Sun Feb 26 21:16:13 1984 Date-Received: Mon, 27-Feb-84 04:22:19 EST Organization: Bell Labs, Holmdel NJ Lines: 15 I am looking for information about fast charging NiCad batteries. I understand it is possible to recharge NiCads in 15 minutes to 1 hour, if certain precautions are taken to avoid overcharging and overheating. My questions are: 1) how much current should be used to fast charge? (10 times the 16 hous rate, or what??) 2) how is the charging time determined?? (strictly on a time basis? by measuring the terminal voltage with a constant current source?) 3) is a constant current source used for the charger? ( or constant voltage, or some combination?) What questions should I have asked that I didn't?? Thanks for any help. ----------------------- James Van Ornum, AT&T Bell Laboratories, inhp4!houxu!jhv