Never use or store the Vault in hot or humid environments. You should also keep it away from water or other liquids, including sinks, bathtubs, or pools. These environments can either severely damage the power station, or significantly reduce its charging capabilities for you in the future. Excessive heat and humidity can ruin the Vault’s internal circuitry and ultimately reduce its overall lifespan. Only use and store the Vault in a cool, dry environment, on a surface that’s flat, hard, and sturdy. Floors, tables, countertops, and other surfaces that won’t be affected by the Vault’s heat if it warms up are all good choices. Never place the Vault on a bed, couch, or other uneven and soft surface that can catch on fire easily.