Please use silver oxide batteries SR43 or SR43W (1.55V) with this adapter.

That way, the voltage will be reduced and you can use the same content as the older MR-9 PX625 PX13 mercury batteries (1.35V).

Popular cameras that use PX625 mercury battery:
Asahi Pentax Spotmatic F
Canon FT, FTb, FTbn, Canonet QL17/QL19/19E/25/19E
Leicaflex SL2, SL
Nikon F, FTn, FT, T, Tn, Nikkormat FT/FTn/FT2
Rollei 35, 35S, 35T, 35 Classic, A26, 126, XF35, Rolleiflex SL35, SL35M, SL26

Item is shipped from Latvia. Free shipping within EU