This is just a short description of how I built a PRAM battery for a 20+ year-old Macintosh PowerBook G3 (Lombard). I wanted to share any information I could because I barely found any when I needed to fix my computer. In the future I'll record the build, but I had no idea what I was doing when I started this project.

To rebuild this battery pack you should have experience with soldering batteries, or using a spot welder. Wear safety gear please!
This battery pack consists of 4 Panasonic VL2330 batteries. The ones I bought had tags on them. After shooting this video I also rebuilt the removable laptop battery using similar techniques. I'm no longer comfortable using a soldering iron on batteries so I'm going to try a spot welder in the future.

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