I was thinking of trying the Mini Vivi, but i bet my Kanger T2 works just as good and holds the same amount of juice.
Not a chance. Kanger T2 has the extended center post, its higher then the tank itself. Proprietary drip tip must be used (made out of junk plastic), gets very hot on the mouth. Can't chain vape unless you like burnt lips. Much harder to clean thoroughly. T2's collect dust here.
) Also what is the PG/VG ratio on your juice? All these things make a big difference on how much juice you use. For instance if you are using 1.8ohm heads and are using 4.0 or 4.2volts or higher then you will use more juice. My solution a long time ago was to learn DIY. It saves a ton of $$. I have a couple of retail juices I love and cannot possibly replicate so I still buy those but mostly I vape my own mixes which are pretty good if I do say so myself. Most of all have fun with you vaping journey 'cause you're not gunking up your lungs any more.