R-time 8 Solder Tab Replacement

Hello everyone,

I have an ICD R-time 8 cartridge that I've removed the original solder tab from. I have tested the cartridge works by temporarily connecting the Keystone 105 battery holder to it, now I would like to permanently install the battery.

I really have not done much soldering/desoldering, so my question is, do I just desolder the front and back + and - locations of this PCB, push in and solder the Keystone battery holder?

Thanks for taking a look.

Steve