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Don't upvote, stupid question. What are the positive and negative sides for the VTC4's?? : r/electronic_cigarette
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BHVape - Vape batteries...when is it time to replace them? Within the vaping world, battery safety is key. We go on about it all. the. time! Make sure, when not in use,
7 Best 18650 Batteries for Vaping | High Drain Sub Ohm - Mega Vaper