this post was submitted on 25 Feb 2026
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I think there were some nuclear button ~~1W~~ 0.1mW ~~decade-long~~ 50-year batteries, from China if I recall
here: https://www.livescience.com/technology/engineering/betavolt-bv100-radioactive-battery-can-last-50-years-coming-in-2025
If only they could build say...a 15W nuclear battery that can last 50 years, THAT would be something. Enough for a very low-power smartphone, one who's CPU is clocked down so that it can't drain energy too fast. And ruggedized as well.
gee..if only we could charge our smartphones. It's expensive throwing them in the river when the battery drains.
Or some way to passively charge phones fast enough that they never need to get plugged in again. I hear one of the ways this would be done, would be by absorbing ambient radiowaves from telephone poles
"coming in 2025"
https://en.wikipedia.org/wiki/Atomic_battery
Not a new idea, although I don't think that particular isotope has been used before.