Hi, I am fairly new to ecf and have a question. My Joye 510 Ego has cartridges that hold maybe 2 or 3 drops of e-liquid. Are there longer cartridges you can use that will fit my Ego? Ones that will hold alot more liquid? It has a 3.7 volt 650mAH battery if this helps. The dimensions are: length: 118mm, diameter: 14mm. Any help on if this exists and where I can buy them would be greatly appreciated!! Thanks for your help! Dayna