Removing a SNES Cartridge Battery and TSOP40 to DIP36 Adapter – McRetro.net
Video: Replacing the battery of a SNES game, or; Can I (Still) Solder?
Replaced My Save Game Battery with a Battery Holder (SNES) : r/gamecollecting
Nintendo SNES/SFC Game Cartridge Battery Replacement – VideoGamePerfection.com
Battery Replacement for Nintendo SNES Game Cartridge • Canada's largest selection of model paints, kits, hobby tools, airbrushing, and crafts with online shipping and up to date inventory.
How to Replace an SNES Cartridge's Save Game Battery