Putin is a War Criminal
If it is a quality battery and there are no cuts in the wrap or insulator I think the chances of battery failure are small. If it is a counterfeit or poor quality cell, or a badly designed or knock off mod, all bets are off. That is why we warn to buy name brand batteries from reliable vendors and watch for counterfeit devices.@cybrguy how likely is it to have a problem with properly wrapped 18650 that has the insulator tab in place?
The vent holes won't in any way prevent a battery failure. They only provide a place for the very high pressure battery event to find its way out of the mod. If no such vents exists the pressure build up inside a closed metal box may blow it up like a grenade. Venting hot gas with some flame and the chemicals involved can definitely burn you quite badly, but an unvented metal mod could kill you or someone nearby with the force of metal shrapnel. I'm not saying it WOULD happen, I'm saying it could happen, and the risk is unnecessary.Yea, the dude on the video pulled the insulator tab thing out and and had a torn wrap. That was going to happen on any device, tiny vent holes or not. Was that unit that exploded in the video vented? That still would have sucked in someone's pocket and vent holes wouldn't have made much difference.