I'm not sure if it is around in another topic, I couldn't find anything anyway,

I'm looking to find out if there is a difference in the batteries for the stse and the xts, xtsc lines.I have one I replaced from the a mach 1 which is the 1/2AA 3.6v.

The others while looking at them still soldered on the boards I can't see if they are 3.6v or something else, of course they are labeled on the side closest to the board.

Any help is appreciated.