hi to all, this is my first post but ive been lurking for a few weeks now. I bought my e gig on the 26th of feb and haven't smoked an analog since, im really please. Anyway, i bought a mini e cig from mirage, i got a kit with 2 batteries and i also bought a spare atomiser, everything is fine apart from ,ive noticed in the last day that when using one of the batteries ive got to draw allot harder to produce vapour. At first i thought it could be the atomiser, so tried my spare, that was the same with the battery in question, both atomisers are fine with the other battery. So, the battery works, but it feels like its taking more effort to produce the vapour. Is this a known fault?