This tiny radioactive battery can last 50 years without recharging — and it's coming in 2025
Favicon 
www.livescience.com

This tiny radioactive battery can last 50 years without recharging — and it's coming in 2025

BetaVolt's BV100 is smaller than a coin and contains a radioactive isotope of nickel that decays into copper and supplies power to a device for up to 50 years. But it probably won't power your smartphone anytime soon‚ an expert suggests.