.. updated on: .comments ."in contrast, a mechanical mod is unregulated and works simply by drawing the power of a battery to an atomizer," he said. ."if the battery in a mechanical mod over-discharges and the device doesn't contain enough air holes to allow the battery to vent, there is a risk of explosion.".."[the chipmuck and mice] come up close to peoples decks, yards, running around and that's the way the ticks can be invited in", she said.