Having crashed a lot of model airplanes by flying very old batteries that "seem" OK, I am switching over to Spectrum Smart batteries that log events and self-discharge to storage levels if not used within a day or so. The fact that I have been lucky flying my Yuneec camera drones with old batteries and not crashed has not escaped me. I have decided to cut open some of my Chroma, Q500 and Typhoon battery cases to adapt them to use Smart batteries that can be removed from the case for charging. Has anyone done this? I know of 3D-printed cases into which new batteries can be soldered but have not found any 3D-printed adaptors that allow removal of the battery for charging.