Just follow the instructions in the leaflet that came with your VUSE ePod 2+. You can also read them below:

• Use VUSE charging accessories, like the ones in your starter kit.
• Use ePod pods.
• Keep your VUSE ePod 2+, charging accessories and pods dry.
• We recommend keeping your device dry during use and storage, but if you get caught out, the VUSE ePod 2+ is IPX4 rated, making it splash resistant to water.
• Store your VUSE ePod 2+ in temperatures between 0⁰ to 35⁰ Celsius.