|
It takes about 70 ma of current across the heart to put it into fibrilation. At that point without help you are in trouble. The most dagerous path for electricity is from hand to hand since it crosses the heart. Electricians tend to "keep one hand in their pocket".
Generally 12 volts is not a problem since your skin resistance is so high that there is not enough current to hurt you. As has been stated the greatest dange from 12 volt battieries is to short across them, that can cause a nasty flash which may injure you. In particular I would be worried about potential damage to the eyes.
You also should keep in mind that batteries on a fast charge give of hydrogen. If it is trapped in a battery box etc. and you cause a spark you will get a little bang. Probably not serious but enough to catch your attention.
Gary
|