Hi everyone! I have an Ego One with the tank it came with, battery and tank are great! I have an Eleaf istick 30w, with Aspire Naitilus mini tank, also amazing. I have a third Nautilus mini tank, and am wanting to purchase another great battery to compliment it. Any suggestions besides buying another Eleaf istick or Ego One battery? More powerful than 2000 mAh but not really looking to go to 3000, or no more than 30w is preferred, but I can easily be swayed as I am still quite the novice and unsure of the majority of things out there. Thanks in advance!