Discover the Uwell Caliburn X 20W Pod System, featuring an integrated 850mAh battery, 5-20W output range, and is compatible with both G/G2 Coils. Constructed from durable aluminum-alloy, the chassis of the Caliburn X Pod System offers a strong and resilient chassis against light falls and drops. Equipped with an 850mAh battery, the integrated battery delivers plenty of vapor throughout the day, allowing the Uwell Caliburn X to output 5-20W easily. In addition, the refillable pods hold up to 3mL, and utilizes a juice viewing window to ensure a minimum fill level to prevent any dry hits or burning of the coil.