Hi, I purchased a 801 penstyle at a mall on a whim. While over priced I have not smoked a single real cigarette since the purchase. That was 13 days ago. I really like the looks and the reviews of the 510 and wish to purchase one. The concern that I have is with the manual battery, which is another major selling point for me.. With my penstyle I just throw it in my pocket at work when I am finished smoking.. would I be able to do this with the 510 or would I need a case of some sort to keep from pressing the button by accident ?