And fun/scary fact- they DON'T work on lithium ion batteries... I think it might slow it down but it doesn't stop them. https://batterybro.com/blogs/18650-whol

And fun/scary fact- they DON'T work on lithium ion batteries... I think it might slow it down but it doesn't stop them. https://batterybro.com/blogs/18650-wholesale-battery-reviews/19673027-plane-safety-systems-are-confirmed-to-not-stop-lithium-ion-battery-fires https://batterybro.com/blogs/18650-wholesale-battery-reviews...