NiCd memory battery replacement needed, what can I use instead?

[trancedental]

I have a dead memory battery in a Tascam Midiizer MTS-1000, SMPTE / MTC / Tape Multi Syncronizer controller, it's a NiCd (Nicad) Sanyo Cadnica N-SB3 3.6V axial AA size. I troubleshooted with a working machine & found out that certain functions on the backup battery PCB don't work by swaping the PCB's around :

I can't get any of these in Europe due to them being banned by the EU, so I was wondering what I could use for a replacement? I've not seen a schematic for the Midiizer so I'm not sure if certain types of batteries might be dangerous to use in this circuit?

Was considering a 3.6V Lithium Thionyl Chloride battery which is the same size with axial pins in it's place http://www.tadiranbatteries.de/eng/products/LTC-Batteries/product2.asp?ID=28.

 

[MrMesh]

Hey all, reviving an old thread here because as it seems the original question went unanswered.

I need to replace exactly the same model of battery Sanyo Cadnica N-SB3 for a Fostex 4050 Autolocator. Does anyone know if the following 3.6V battery would fit the bill?
https://www.conrad.de/de/p/tadiran-...tpin-lithium-3-6-v-2400-mah-1-st-1658965.html

 

[CJ]

I bet a 4.1 volt Li-ion would work without blowing anything up,

 

[Khron]

Or some lithium primary cell of some description, if available in the right form factor?