Brand New Macintosh 128k, 512K & Plus Battery
The original 4.7v batteries for the early Macintosh models have been discontinued. Even the alternate replacements are getting very hard to find.
This battery is the correct size and is a drop in replacement. The original Macintosh battery voltage was 4.7v
Our replacement batteries are rated at 3.7v and have been a trusted alternative for many years.
Each battery is tested for proper voltage before shipment.