For about the last 8 to 9 years, I have been using joyetech ego batteries with vivi nova 2.5ml tanks. I make my own ejuice and rebuild the atomizers. Recently my stock of ego batteries have run low and I cannot find any joyetech ego batteries or even comparable batteries made by other manufacturers to purchase online. So I recently purchased some endura t-18's to utilize with the vivi nova tanks. I made the atomizer to 1.5ohm, but the battery will only allow me to get one hit before it fritzes out. I would like to continue to use the vivi nova tanks, since I still own so many of those and I rebuild/rewick them. Any ideas or suggestions??