yep.. i once(foolishly) tried out a wet-from-rain laser torch,the flash and
smoke made it look like my car had just been blown up!very impressive for
the kids standing nearby! OH the shame...
----- Original Message -----
From: "Russell McMahon" <apptech@paradise.net.nz>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Tuesday, November 15, 2005 12:54 AM
Subject: Re: Safety of 12V dc to 110v ac using D cells


> > On the subject of batteries and safety; i recently accidentally
> > shorted out
> > a 6v (4xAA cells) battery pack
>
> A single AA NimH battery carried in a pocket with coins keys et al can
> (and has)(on several occasions that I am personally aware of :-) )
> become so hot that the outer plastic peels off and the battery is too
> hot to be picked up (100C plus) - certainly hot enough to burn skin.
> As the battery will (or should) be venting under such conditions other
> adjacent items may be chemically affected.
>
> Even a good Alkaline AAA cell will deliver over 5 Amp short circuit.
>
>
>         RM
>
>
>
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