Vertical Barrel Battery Blaster is a very small PCB for replacing old rechargeable barrel-type CMOS batteries with non-rechargeable CR2032 Lithium batteries
Please refer to the official Github repository for more information here:
https://github.com/scrapcomputing/VerticalBarrelBatteryBlaster
Warning Older systems may require a higher voltage than the 3V - diode voltage drop that this board can provide.
Thanks for Scrapcomputing for providing the design files for this project.