Hello Iam scared of vaping because I don't know when to change 18650 batteries since I have small nicks and cuts on battery wraps is it OK to use in my vaperesso revenger mode because even if I buy new batteries small cuts and nicks appear after use because I take them out for charging my question is when should I discard is the cut near positive end bad or near negative one????? Or both??? But this happens with every battery and do they vent or explode?? Best regards Shafi