Dave debunks the marketing claims of self-charging Nano Diamond Batteries in the first 10 minutes using their own material. The rest of the video is cream on top. NDB Inc supposedly have a nuclear nano diamond self-charging battery that will revolutionise the energy industry and power electric vehicle and mobile phones.
TLDR; it’s no better than existing 100uW commercial betavoltaic batteries, but has an added graphene supercapacitor in the AA package.The rest is marketing BS.
Betavoltaics presentation from City Labs: https://www.energy.gov/sites/prod/files/2015/08/f26/Cabauy%20Tritium%20Focus%20Group%20Presentation.pdf