Simble 18650 cradle dimensioned to fit nicely inside the Heltec V3 “Bender” case from here https://www.printables.com/model/797822-bender-battery-case-for-the-heltec-v3-heltec-t114
Created since I didn't have a battery holder. I soldered the wires directly to the battery. Probably not ideal but it works for me.
The author marked this model as their own original creation.