This was a gift & I'm having a problem. First, it almost melted the charging cord that came with it - scary. Then, eventually, the charging light was green so I wanted to try it. It came with a Pro-tank, which I tested an another battery - vaped fine. The new one is supposed to turn on with five button pushes & have a yellow light for 3.6 V, five more times, blue light for 3.8 V, five more for red at 4.2 V. Then five more clicks to turn it off. Instead I get a pinky bluey light that blinks three times & then shuts off, no matter what combo I try. Wait for the blinking light to stop to make the five counts, count to five while it's blinking, keep clicking hoping to get a solid color, any color. So my question is do you think it's defective or am I doing something wrong?