I have had my IJOY RDTA 200W BOX MOD for about four months. No issues except leaking from the tank. Today my mod began firing on its own. I removed the batteries. I wanted a few puffs, so I put the batteries in. No issues. I filled the tank and set on the counter. Again the mod began firing on its own. Removed batteries once more. Could be the leak causing the firing. Please be cautious if you or someone you know owns this mod.