This is why you NEVER use a battery with damaged wrapping, even if you don't have the dosh for a replacement. : r/electronic_cigarette
Very noob question about 18650 battery - can the plastic be peeled off? | Candle Power Flashlight Forum
Amazon.com: uxcell 20pcs Battery Wrap PVC Heat Shrink Tubing 29.5mm Flat Width for 18650 Power Supplies 5m Length Blue : Industrial & Scientific
Mooch - Peel off those battery stickers! If you bought Samsung, Sony, LG, or Panasonic/Sanyo batteries then they probably came with stickers covering up the printing the manufacturer put on the battery