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From: szarekw@lonexc.radc.af.mil (William J. Szarek)
Newsgroups: sci.electronics
Subject: Re: mixing bettery types. Why not?
Summary: internal resistance differances
Message-ID: <1991Mar27.133931.23198@lonex.radc.af.mil>
Date: 27 Mar 91 13:39:31 GMT
References: <77759@bu.edu.bu.edu>
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In article <77759@bu.edu.bu.edu> jdubb@bucsf.bu.edu (jay dubb) writes:
>
>   I am posting this for a friend of mine who doesn't have access
>to USENET, so please respond directly to mlevin@jade.tufts.edu.
>
>   I was wondering. I often see warnings on electrical equipment to
>not mix battery types. Can anyone explain to me why this is so (or,
>maybe it is not so)? I have racked my brains trying to think of a
>reason why the current flowing between the cells should care what type
>of battery it came out of, but can't come up with anything (not
>surprising - I am a bio major...). Anyone know?
>
>				Mike Levin (mlevin@jade.tufts.edu)


the internal resistance of each type of battery is differant.  Under heavy
loads this will cause a voltage imballance and a possible overload on the
battery . . . *poof*

hope this helps
buzz