Hello everyone, I am enjoying my first set, a Kangertech evod battery with an aspire can, I got this set like two months ago, but I noticed some dark spots on the surface of my battery, should I get worried about that? The battery works normal and it doesn't gat any hot while vaping, I will appreciate the help, I let pictures of the battery
Regards,
Rodo
Regards,
Rodo
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