Yearly Archives: 2020


Panasonic AA Alkaline cell

AA Batteries

NiMh Cells Seem To Be Fading Away We have used NiMh cells for years, but they are now harder to find and a lot more expensive.  So we are switching the main batteries from 8-cell NiMh to 3-cell 18650 cells with a BMS.  We still need a stable and safer […]