On my new Evod, if you click the battery button five times it turns the battery off. Is there any advantage to keeping the battery turned off, since you can't vape out of it unless you have the button depressed anyway? Does that battery drain if it's not turned off? I can't see how it could possibly start activating by accident unless it gets jammed against something which depresses the battery, but is that an issue? Anyone have an answer? Also, when I recharge it, is it best to do that with the battery turned on or off?