It appears my two new Zebra lights, an SC51 and an H51, are discharging the batteries in them. That’s both a straight and an angle headed light. In one case, I thought something in a tightly packed pack, hit the side click switch. So, I replaced the battery and backed off the tail cap enough so it won’t light even if the switch is clicked. But there goes waterproof! In the second case the angle head light was still in the cardboard delivery box. But a family member may have been playing with it. I’m not sure. I note that the click switch is too easy to operate. Anyone have this same experience? Is it the switch? How have you dealt with this issue? Is there an easily acquired plastic vial to store them in and protect the switch?