Hi all, new guy here with a quick question. So I've been vaping for a little while now, about 2 months, been sticking with my Smok AL85 as it's done everything I've needed so far. Today I went and purchased a new tank, the TFV8 Big Baby kit, mainly just for the bigger tank and to mess around with some different coils to see how I like them. The problem I'm having is that no matter which of the new coils(have tried the V8 Baby-x4 and the T6), it says "Check Battery". As soon as I put my original tank/coil back on there's no issue. Can anyone tell me what's causing this issue?