Be aware of Safe Battery Habits and practice those habits at all times.
Long story short, a long time ago I had made a habit of storing my mechanical mods in a pants pocket at work, and hanging those pants in my locker. The firing button of one of those mods is rather pronounced, and there is no safety shut-off switch as some mods have. So within the tight quarters of this pocket the pronounced fire button became compressed continuously against the other mod.
This allowed the battery to rapidly discharge at an unsafe rate, resulting in battery failure and it went into thermal runaway. This caused the pants pocket to become badly scorched, totally destroying the battery and the power switch on the mod (where the hot gases vented as designed). This could have started a fire in the locker had I not found the situation when I did.
This was a protected Li Ion battery, and one that was recommended at the time for this mod. The built-in protection circuit in the battery had failed, allowing the battery to fail. Today, conventional wisdom by battery experts is that protected Li Ion batteries should not be used in favor of safe chemistry IMR batteries.
NCR/ICR Li Ion batteries that go into thermal runaway vent flames and extremely hot gas. IMR safe chemisty batteries may go into thermal runaway but are less likely to, and if they do they generally do so less dramatically or violently and without flames.
Long story short, a long time ago I had made a habit of storing my mechanical mods in a pants pocket at work, and hanging those pants in my locker. The firing button of one of those mods is rather pronounced, and there is no safety shut-off switch as some mods have. So within the tight quarters of this pocket the pronounced fire button became compressed continuously against the other mod.
This allowed the battery to rapidly discharge at an unsafe rate, resulting in battery failure and it went into thermal runaway. This caused the pants pocket to become badly scorched, totally destroying the battery and the power switch on the mod (where the hot gases vented as designed). This could have started a fire in the locker had I not found the situation when I did.
This was a protected Li Ion battery, and one that was recommended at the time for this mod. The built-in protection circuit in the battery had failed, allowing the battery to fail. Today, conventional wisdom by battery experts is that protected Li Ion batteries should not be used in favor of safe chemistry IMR batteries.
NCR/ICR Li Ion batteries that go into thermal runaway vent flames and extremely hot gas. IMR safe chemisty batteries may go into thermal runaway but are less likely to, and if they do they generally do so less dramatically or violently and without flames.
- In hindsight, Safe Battery Habits should have been used when storing a mod within the restricted small space such as a pants pocket.
- Although this mod doesn't have it, mods that have an on/off safety feature for the power button should take advantage of that function when they are not in use to prevent accidental firing.
- The battery or the juice attachment should have been removed from the mod to prevent any electrical circuit with the battery, and the battery stored safely in a plastic battery case.
- All spare batteries should be stored in a plastic battery case if carried in a purse or pocket to keep them out of contact with coins, keys, or other metalic material.
- A Vape Safe Mod Fuse should have been used with the batteries in both mechanical mods.
Last edited:
