Ok. I started at 9:00 am with a freshly charged (Pila) AW IMR 18490. It tested on my Fluke 115 at 4.184v. Using an Ody with TS base. Used a 1.6 ohm coil and had the Kick set at close to 9w. Vaped two tanks, about 6ml of BWB RY4 24mg. Used it constantly till about 6 pm. Its still going but had to switch flavors and go to a lower nic for the evening. Bat tests at 3.618v. I'll use it more in the morning and test again when it shuts down.