> 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 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist