This is a tool I made to extract 18650 lithium cells from battery holders (examples linked below). I got tired of prying them out with a screwdriver or other tool. This will pull out two at a time.
https://www.amazon.com/URBEST-Plastic-Battery-Holder-Design/dp/B01LWM4Q8X
18650_Cell_Extractor.stl | 40.3KB |