The 400 mAh battery is charged directly from its USB port, built into the last end of the E-POP and protected by a removable tip. After an hour of loading, it is able to start a day of autonomy, with moderate use. Assured freedom!
This same end has a 1.8ml tank called "POP-COIL". It fills with the e-liquid of your choice, using a provided pipette. Unlike other PODS on the market, it can be filled up to three times. Totally hermetic it avoids any risk of leakage or contact with the skin.