Again, thank you all for responded to my previous post so quickly.
It seems I'm having another problem!
I charged the battery I had been using (XL Manual Diamond Series) yesterday overnight. I cleaned it before and after charging it. Now it appears to be turning itself on. It will turn off when I push the button, and within a moment or two, turn itself on again.
What gives? Should I let it tucker itself out and try to charge it again?