Recently, there has been a significant amount of hype around a Chinese company by the name of Betavolt for launching a betavoltaic battery with a claimed 50 year lifespan:

https://www.independent.co.uk/tech/nuclear-battery-betavolt-atomic-china-b2476979.html

https://www.batterytechonline.com/materials/betavolt-battery-50-year-charge-cellphone-powered-for-decades

https://newatlas.com/energy/betavolt-diamond-nuclear-battery/

Will a consumer be able to buy one of these before the end of the year in the US, Canada, UK, Australia, New Zealand, or EU?

As always, please leave comments if my criteria are unclear or you disagree with them.