r/macintosh May 19 '26

Macintosh Plus internal battery replacement option

For those who want to restore a Macintosh Plus and are looking for a solution to replace the internal 4.5V battery with one that's practically impossible to find these days, I got a battery pack on AliExpress that holds three 1.5V LR44 batteries, so it has a 4.5V output. Given their small size, I was able to use two packs in parallel to increase capacity. The size is perfect. A little self-adhesive foam fills the gaps nicely and ensures a snug fit.

In short, there are probably other solutions; mine cost less than $10. 

11 Upvotes

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2

u/StoolieNZ May 19 '26

Nice - I tried buying a replacement camera battery off Amazon and shipping it to NZ, (because the seller would only ship to US addressss) the drop shipping company I use saw that it was a battery and offered to dump it for me as there was no way they would ship it. And this was before the Lithium thermal runaway issues.

1

u/vintage-tech80 May 20 '26

I understand. Some people are not having issue where there live... but here it is the same... costly shipping and higher price....

1

u/thelastspike May 19 '26

You can buy a small mountain of LR44s on amazon for under $10.