I just started vaping yesterday. Before I started I studied and got myself a good basic knowledge of vaping. I got an Epower x2 70w variable watt mod and a Crown sub-ohm tank and I'm using the included .25 Ohm stainless steel dual coil. I noticed that when the battery gets to about 1/3, the mod will drop to 30w when I hit it, even if it's set to 55w where I normally use it. Any reason for this and is there any way to bypass it? It's pretty annoying to be expecting a nice full hit and get about half of what I wanted.