Hey guys I just got a sigelei mini 30w off my buddy, no visible damage etc. I noticed the display doesn't turn off. After about 30 seconds when it SHOULD go off, it flickers on/off continuously. It eventually kills the battery after like 3-4 hours. In order to conserve the battery I have to turn the entire thing off which is pretty inconvenient. Tried using different tanks (currently using kanger sub tank mini) and replacing batteries. Anyone else run into this issue? Tried checking across the interwebs but couldn't find anything