picard Flashlight Enthusiast Joined Dec 31, 2004 Messages 1,298 Jul 17, 2009 #1 Does a button top on 18650 battery different from flat top? Does it affect performance ?
Mjolnir Flashlight Enthusiast Joined Dec 19, 2008 Messages 1,711 Jul 17, 2009 #2 It could theoretically raise the resistance, but I doubt it would significantly.