A: Hi Dawn,
Thank you for reaching out to us! The SmokTek eGo 650 CE4 Clearomizer E-Cigarette Kit with carry case includes two 650mAh eGo batteries, two clearomizers (tanks), a USB charger, a wall adapter, and a carry case. You're correct; the battery is the item you charge. These kits do not come with changeable coil clearomizers. We do, however, sell the same kit with changeable coil clearomizers (link below). For the changeable coil clearomizer kit, the Replacement Coil for CE4-CC Clearomizer is the correct coil (link below). We also sell iClear 16 Clearomizers, which are replaceable coil clearomizers, and we have more resistance options for that clearomizer (link to clearomizer and coils below).