Hello! 
Decided to come to the experts after reading tons of reviews online. I'm about 2 weeks into quitting analogs, and already looking for a new battery. I started with an ego-t, but I'm not happy with the battery life or the power I'm getting from it. I realize now that I've started taking longer slower draws, looking for something with a little bit more in longevity and power. 
  
So here's my question: 
  
Joytech Ego-t 2 upgrade 1000 MaH passthrough battery (passthrough is a huge pro to me because most time spent Vaping is at home) 
OR 
Vision Spinner 1300 Mah 
  
Any advice on other options, opinions etc would be GREATLY appreciated. I need anything I buy to fit my recent purchase of several Kanger Mini Pro Tank 2's (only trying to mod a little at a time due to limited grad student $ but I realize most can have an adapter added on). 
  
Thank you in advance