How can you charge raw 31400/46950 inside your flashlight safely

Since flashlights have overcharge protection, is that all you need? (With insulation over the blue raw batteries)

Sir, I charged my Eve 46950 battery inside my Lumintop Mach :flashlight:Five times and I discharged it Five times in the :flashlight:without an insulator and I’m still alive.:astonished_face:

It is Possible that trend may not continue so I’m looking for safer alternatives. Then again this battery has been nothing but a headache since I’ve got it. Part of it was my fault for not knowing Lumintops policy of not sending a spare battery unless it’s inside of a flashlight.
That is my story

To answer the question that’s you stated in your thread, maybe there’s a few ways?