Thats why I hate using RDA's on my box mods.. I cant stand when
e-liquid leaks onto the body much less then in the actual mod!!
My friend uses an IPV4 with an RDA at work a lot and he opened the battery door and the batteries wore soaked with e-liquid!
Hopefully the Sig 150TC is more protected! (Although the battery doors look very similar to the IPV4)
BTW I know ANY tank can leak and be worse than an RDA, but im paranoid so I never leave a tank on my Expensive mods unless im using it, and i always check for leaks..