PINBALL: Repairing Bally, Stern Pinball Games 1977-1985, part one
Pinball Life: Premium Remote Battery Holder for Williams/Bally WPC & WPC-95 Machines
MPU 100/200 battery board for Bally/Stern games – No Quarters Arcade
903 TODD'S TIPS- Bally Pinball Machine- How to INSTALL LITHIUM BATTERY CELL - TNT Amusements - YouTube
Lithium battery replacement for Willians, Bally & Stern Pinballs where fitted - Beginner Quick Tips - YouTube
Finding and Replacing the Batteries -
Amazon.com: Williams Pinball Battery Holder - Mpu : Toys & Games
MPU 100/200 battery board for Bally/Stern games – No Quarters Arcade
TECH: How to replace the battery holder on a Williams System 11 CPU board | Museum of the Game® Forums
6264 NVRAM Battery Eliminator Module for Stern Pinball Machines – PinballElectronics.com
PINBALL: Repair Bally 6803 Pinball Games 1985-1989.
System 11B MPU Battery Corrosion Repair
batteries | Peak Pinball
Bally 6803 Replacing the battery with a 2032 coin cell - "Escape from the Lost World" - YouTube
Bally Pinball MPU Corrosion Parts Repair COMBO KIT w/ Remote Battery Holder | eBay
Bally Pinball MPU PCB Corrosion Parts Repair COMBO KIT w/ Remote Battery Holder | eBay
Replacing the Battery in a Bally Pinball Machine - YouTube
5101 NVRAM Battery Eliminator Module for Bally Pinball Machines – PinballElectronics.com
