Bumping for help. I was thinking of buying an iTaste CLK 1280 and pairing it with an Aspire mini Nautilus.
Any VV battery will shorten the life of Mini Protank 2 coils if you increase the power too high. I used to get 4-5 days from Protank coils vaping around 8-9 watts. I can get up to 2 weeks vaping a Nautilus BVC at 11-14 watts. For me, the Kanger coils were costly and unsatisfactory.