Newly made German 4,5v flashlight battery made from a 3D printed housing and wrapped with the same labels as usual. This is a one time use battery, as with our previous batteries. The cells inside are made from AA batteries, spot welded together. My battery spot welding skills improved some over the course of making this run. Despite being "home made" they do still work quite well and offer a similar lifespan to our previous batteries. It makes, sense, the cells are the same ones from the same maker, the only real change is that I put these together because it has become too expensive to get ahold of the complete new factory made 4,5v batteries.
