Using the wrong charger is the main cause of explosions for devices like e-cigarettes. When charging an e-cigarette, make sure that it is kept upright on a stable, non-combustible surface.
For an e-cigarette specifically, if it gets wet, safely dispose of it. Clean your e-cigarette every week with an alcohol wipe. If you notice any signs of damage on your e-cigarette, such as cracks, dispose of it safely and buy a replacement battery.
