I didn't stop to measure. They looked to be about the size of AAAs, I didn't know that AAAAs existed. They were also in the bin by the time I posted.
Fine, don't. If you try it & get hurt, don't coming crying to me.
Where do you pretend all of this energy came from for
I'm not pretending anything. I know what happened & that is all I am presenting here. Facts, not theories or postulations. All I know is that it made me jump.