four SR 44/PX 76/357 cells do not fit into the battery compartment but with an adapter four type 386 cells (the height of this cell is a little bit lower, I think this is the SR 43 type) will fit. In the original mercury battery there were also 4 cells of the same size as the 386). You can make such an adapter from a piece of plastic tube, plastic tape or shrinking hose. You can read different opinions, some say the 35 SE's meter will measure correct with 6 V, others say the camera has to be recalibrated.