Follow the instructions on the user guide that comes with your Vuse GO 5000. They include but are not limited to the below:

• Store your Vuse GO Edition 5000 between 0–35°C.
• Do not drag, crush, pierce, incinerate or immerse the device in water and keep Vuse product dry.
• Never leave in direct sunlight or near heat sources.
• Do not use around flammable liquids or gases.