I don't have one. The only dual bat I have is IPV4 and only use it in TC, it lasts about 5 days.
My IPV D2 dual coil was noticably worse on batteries in TC until I went with lighter wire to increase the resistance equal to my single.
So even in TC your resistance matters.
My Sig75wTC is hard on batteries in power and TC but I don't have anything to directly compare to it because it's my only Ni mod and the use in power mode was testing a clapton in a SubTank. It will be a while before I get other tanks to move the SubTank to a VW mod and have a direct comparison.
But what I've seen with the Sig75w wouldn't surprise me if the 150w was harder on batteries than others.