OEM Genuine Nintendo Wii Balance Board Battery Compartment and PCB Board - Surpius
RepairBox Replacement Battery Cover for Wii Fit Balance Board: nintendo_wii: Video Games - Amazon.ca
3800mah Rechargeable Li-ion Battery Power Pack Replacement Rechargeable + Usb Charging Cable For Nintend Wii Balance Board Fit - Batteries - AliExpress
Amazon.com: Wii Fit U w/Wii Balance Board accessory and Fit Meter - Wii U : Video Games
Wii Balance Board - IAM MediaWiki
Wii Balance Board Teardown - iFixit
Accidentally left the batteries in my wii balance board for 9 years and it corroded the converters away, is it possible for me to fix? : r/consolerepair
Balance Board Disassembly - YouTube
Wii Balance Board Battery Case Replacement - iFixit Repair Guide