The GeekVape S100 Kit or also known as the Aegis Solo 2 is a single 18650 battery device which includes the Zeus Tank 2021 Edition. It has a 100 watt maximum output and houses the battery via a secure bottom threaded cap. The interface features a single firing button paired with dual button adjustments and even a child-proof safety lock. The Zeus tank has a 5.0 mL e-juice capacity and is compatible with the Z Series Coils which offer many different resistances to cater to individual vaping preferences. Filling the tank is also made easy with the top fill system to expose the extra large fill ports. One of the best features of the tank includes a top adjustable airflow system which makes it leakproof compared to its competitors.