Slight current through fully mechanical box mod.

[MrNobody]

I have the oblivion triple 18650 parallel mod, link below, and when it's fully loaded up I can feel a slight current (shocking sensation), not firing, if I touch any of the metal parts with my tongue but I can't feel it with my hands or anything. This mod is fully mechanical, no mosfet and runs flawlessly except for this fact. If I'm running a full metal atty I can feel the current on my atty but only with my tongue which is how I first noticed it. I know people don't go around licking their mods but my main concern is safety. Since the mod seems live my main concern is that my batteries will be constantly draining and while I can't see a scenario where it would occur I don't want the continuous current to some how cause my batteries to vent, I've only used this mod in short bursts for no longer than two hours but would like it to become a daily carry.

EDIT: Want to add all the contacts are clean and free of any tarnish. The batteries I'm using are a set of married LG2 that have only been used in this mod, nothing is two tight or loose either.

OBLIVION TRIPLE BATTERY BOX MOD BY Galactic High Innovations

 

[Nikea Tiber]

Any positive interrupted parallel mech will do this. The negative is always charged, your tongue provides ground.