I have a question about the performance of these two batteries. They are both 3.7v batteries and of course the 18650 is larger and has a higher MAH rating for greater longevity on each charge. It seems to be that I get a stronger hit on the 18650 and I don't know if this is purely my imagination or if there is any real reason why this would be. I'm talking about both batteries being freshly charged. Can anyone help?