Is it normal when my tank is leaking onto the top portion of my battery?
What is perceived as a leak, is often the result of flooding.
You have possibly overfilled your tank or inhaled too forcefully on the cartomizer. This caused a large amount of e-liquid to be drawn onto the atomizer. The coil isn't able to vaporize all the e-juice so it either seeps from the tank onto the battery or you're left with a mouthful of e-liquid. You may also notice a distinct gurgling sound when inhaling through your device.
There is no cause for concern, click here for a simply fix.