Battery extractor / crowbar (18650 and others)

Makers and rechargeable batteries are a common combination — just as common as the frustration when you have to extract such a battery from its holder. For this reason, I was quite puzzled when I saw that there was not a tool in Printables for the job. So I designed a very simple one.

Print with 100% infill, I used PLA but probably any material would do. You might need a brim. Tested with 18650 batteries, probably OK with any other similar shaped ones.