I use a oxva origin x with adapter to use different tanks battery life ok and found that some of the juices need a bit more power. So got the Smok Rigel power is far more than I will ever use plus two batterys which gives it great life, great shape and size and just plus or minus for wattage so basic just what I want very pleased.
Nice and small just for the missus and a dual 18650 for the power
Great mod small an powerful realy good on battery life excellent service from vaping 101 team again never let you down
Another great product quality service and company