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From: dwl@hou4b.UUCP (D Levenson)
Newsgroups: net.analog,net.consumers
Subject: Re: NiCad Battery Recharging - watch out...
Message-ID: <1225@hou4b.UUCP>
Date: Wed, 19-Dec-84 09:12:54 EST
Article-I.D.: hou4b.1225
Posted: Wed Dec 19 09:12:54 1984
Date-Received: Thu, 20-Dec-84 23:38:54 EST
References: <829@bnl.UUCP>
Organization: AT&T Information Systems Laboratories, Holmdel, NJ
Lines: 11
Xref: watmath net.analog:131 net.consumers:1585

A number of years ago, a Learjet aircraft was destroyed when its
NiCad battery exploded in flight.  Today, aircraft which use NiCads
are required to have a safety system which prevents the thermal
runaway that leads to this sort of an incident.  These systems
monitor the temperature in the battery compartment, the charge
current, and the battery buss voltage.  I don't know what algorithm
they use in this monitoring, but they can shut down the charging
system in time to prevent a catastrophy.

-Dave Levenson
AT&T-ISL, Holmdel