![What are those brown spots? They just came after I already vaped over the half of the cartridge? : r/oilpen What are those brown spots? They just came after I already vaped over the half of the cartridge? : r/oilpen](https://preview.redd.it/4er2iu4dddz71.jpg?auto=webp&s=e70758d28006d3c572d9482f9291f89cfde15b8c)
What are those brown spots? They just came after I already vaped over the half of the cartridge? : r/oilpen
![Can anyone tell me what these black spots are on my VTC? Is it still safe or shall I throw it out? : r/electronic_cigarette Can anyone tell me what these black spots are on my VTC? Is it still safe or shall I throw it out? : r/electronic_cigarette](https://i.redd.it/2vyd4wi40prx.jpg)
Can anyone tell me what these black spots are on my VTC? Is it still safe or shall I throw it out? : r/electronic_cigarette
![Is the battery ok? Looks like Black spots on the green wrap could be from anything just asking. : r/Vaping Is the battery ok? Looks like Black spots on the green wrap could be from anything just asking. : r/Vaping](https://preview.redd.it/jurvhl6384b61.jpg?auto=webp&s=a9a026599b794802274279a52f22b7ce0c1423c5)
Is the battery ok? Looks like Black spots on the green wrap could be from anything just asking. : r/Vaping
![There is a black spot that appears on the hot button and battery which cuts off the connection, when I scrape it off the hot button it works again but comes back There is a black spot that appears on the hot button and battery which cuts off the connection, when I scrape it off the hot button it works again but comes back](https://external-preview.redd.it/XQtmg4MxGDM8QqT0L44FEEfBoVBM7cQ3OcP8_TfT4Yg.jpg?auto=webp&s=adcf93b04168b5926a559b44b46a695be745517c)