Replacement Battery for Apple Mac Plus PRAM

Exell A21PX Replacement Battery for Apple Mac Plus PRAM

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While we strive to provide accurate and up-to-date information, the rapidly evolving nature of battery technology means that information may become outdated or inaccurate over time. It is essential to independently verify any information presented on findyourbatteries.com. It is not intended to be a substitute for professional advice on battery power, energy or electrical systems, or related areas.

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Battery Replacement for Apple Mac Plus PRAM

The Exell A21PX is a compatible battery replacement for the Apple Mac Plus PRAM.

  • Type: 4.5V PRAM Battery
  • Fits: Apple Mac Plus PRAM
  • Battery Model: Exell A21PX

Buy the battery replacement for Apple Mac Plus PRAM on Amazon


What kind of battery do I need for my Apple Mac Plus PRAM?

If you have a 1980’s vintage Apple Macintosh Plus and are looking for a battery for your PRAM, the 4.5V Exell A21PX battery is the proper replacement battery for the original but now discontinued 523 battery that the Mac Plus PRAM used.

The A21PX battery replacement for the Apple Mac Plus PRAM is cylindrical and has flat contacts on each end. It measures approximately 16.8mm in diameter and 49.9mm in height.

Buy the A21PX battery on Amazon


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What does PRAM mean?

PRAM stands for “Parameter Random Access Memory” (pronounced “P-ram”). All Macs use a battery for its PRAM, which stores the computer system’s configuration settings and helps keep time so that you don’t have to keep updating your system settings (things like display options, time zone, and speaker volume) on startup every time you turn your Mac on.


Disclaimer

CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED "AS IS" AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

While we strive to provide accurate and up-to-date information, the rapidly evolving nature of battery technology means that information may become outdated or inaccurate over time. It is essential to independently verify any information presented on findyourbatteries.com. It is not intended to be a substitute for professional advice on battery power, energy or electrical systems, or related areas.

Some links on our website are affiliate links. Please note that we may earn commissions through affiliate links. As an Amazon Associate I earn from qualifying purchases. For more information about our content and participation in affiliate programs, please see our Terms of Use.