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I personally wouldn't trust anything less than steel ammo boxes. I've exploded batteries before and they get seriously hot. It will completely burn through anyt

I personally wouldn't trust anything less than steel ammo boxes. I've exploded batteries before and they get seriously hot. It will completely burn through anything without a lot of thermal mass. There are videos on youtube showing how cheaper pouches are completely useless

jrockway 4y ago
What is a battery fire like in an ammo box? I imagine flames shooting up, catching the ceiling on fire, and the bottom getting so hot that it catches the shelf on fire. I made a lithium battery pack for amateur radio once. I was scared of it for a while and charged it in my fireplace. If it catches on fire, well, that's the place, right? (They were A123 cells though. Not as firey as other chemistries.)
- olivermarks 4y ago
  A damaged battery's trapped energy is very explosive. A decent steel ammo box will contain the blast. It seems likely that a discarded battery found on the street might have been crushed or punctured by a vehicle wheel or similar https://youtu.be/HCGtRgBUHX8 https://youtu.be/HCGtRgBUHX8
  - djmips 4y ago
    You'd likely see if it had been damaged. The battery is protected by the plastic casing of the vape device.
  - jpindar 4y ago
    Also, while ammo cans aren't 100% air-tight, they're pretty close to it.