AA Batteries in Pinball Machines

AA Batteries (a.k.a. LR6, FR6 and R6) are the most common battery to find in a Pinball Machine. These batteries are usually in a group of 3 to provide 4.5Vdc to the RAM IC, which stores the information needed to be saved when the power is lost.

To learn more about batteries in Pinball Machines, have a look at our Batteries page.

As all AA Batteries are located inside the headbox, you will need to know how to open it up. If you are unsure how to do so, check out Opening a Pinball.

On this page, we will show you where the AA Batteries are located in your machine.

We have circled the AA Batteries in RED for easy identification of the batteries.

So, click on the board generation of your machine to find out where they are, or just scroll the page...

Atari ('79): Generation 2
Bally (mid '89 - '98): System 11, WPC & WPC-95
Data East ('87 - '94): Data East MPU
Sega Pinball, Inc. ('94 - '99): Data East MPU & WhiteStar
Stern Pinball, Inc. ('99 - '05): WhiteStar
Williams (late '77 - '98): System 3 & 4, System 6 & 6A, System 7, System 9, System 11, WPC & WPC-95

Atari "Generation 2" Pinball Machines

The Generation 2 hardware machines were made in 1979 by Atari. Here is a photo showing the location of the AA batteries:

Note that the left and right batteries are orientated with the positive terminal facing up (the tip at the top), while the middle battery has the positive terminal facing down (the tip towards the bottom).

Data East and Sega "Data East MPU" Pinball Machines

The Data East MPU hardware machines were made from 1987 until 1995 by both Data East and Sega. Here is a photo showing the location of the AA batteries:

Note that the top and bottom batteries are orientated with the positive terminal facing right (the tip towards the right), while the middle battery has the positive terminal facing left (the tip towards the left).

Sega and Stern "WhiteStar" Pinball Machines

The WhiteStar hardware machines were made from 1995 until 2005 by both Sega and Stern. Here is a photo showing the location of the AA batteries:

Note that the top and bottom batteries are orientated with the positive terminal facing right (the tip towards the right), while the middle battery has the positive terminal facing left (the tip towards the left).

Williams "System 3 & System 4" Pinball Machines

The System 3 & System 4 hardware machines were made from late 1977 until early 1979 by Williams. Here is a photo showing the location of the AA batteries:

Note that all the batteries are orientated with the positive terminal facing up (the tip at the top).

Williams "System 6 & System 6A" Pinball Machines

The System 6 & System 6A hardware machines were made from mid 1979 until late 1980 by Williams. Here is a photo showing the location of the AA batteries:

Note that all the batteries are orientated with the positive terminal facing up (the tip at the top).

Williams "System 7" Pinball Machines

The System 7 hardware machines were made from late 1980 until mid 1984 by Williams. Here is a photo showing the location of the AA batteries:

Note that all the batteries are orientated with the positive terminal facing right (the tip towards the right).

Williams "System 9" Pinball Machines

The System 9 hardware machines were made from late 1984 until mid 1985 by Williams. Here is a photo showing the location of the AA batteries:

Note that all the batteries are orientated with the positive terminal facing up (the tip at the top).

Williams and Bally "System 11" Pinball Machines

The System 11 hardware machines were made from 1986 until early 1991 by both Bally (Midway) and Williams. Here is a photo showing the location of the AA batteries:

Note that all the batteries are orientated with the positive terminal facing upwards (the tip at the top).

Williams and Bally "WPC" and "WPC-S" Pinball Machines

The WPC hardware machines were made from 1989 until 1995 by both Bally and Williams. Here are two photo's showing the location of the AA batteries (for WPC and WPC-S respectively):

Note that all the batteries are orientated with the positive terminal facing upwards (the tip at the top).

Note that all the batteries are orientated with the positive terminal facing right (the tip towards the right).

Williams and Bally "WPC-95" Pinball Machines

The WPC-95 hardware machines were made from 1995 until 1998 by both Bally and Williams. Here is a photo showing the location of the AA batteries:

Note that all the batteries are orientated with the positive terminal facing upwards (the tip at the top).

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