NanoTritium batteries
| NanoTritium batteries powering a circuit board (left) and a Michigan Micro Mote (right) | |
| Type | Betavoltaic device | 
|---|---|
| Inception | 2008 | 
| Manufacturer | City Labs, Inc. | 
| Models made | P100 series | 
| Website | City Labs | 
NanoTritium batteries are ultra-low-power, long-life betavoltaic devices developed by City Labs, Inc. These nanowatt-to-microwatt batteries utilize the natural decay of tritium, a radioactive isotope of hydrogen, to generate continuous power for over 20 years.