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Coin-sized nuclear 3V battery with 50-year lifespan enters mass production
(www.techspot.com)
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this post was submitted on 04 Apr 2025
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yes some spacecraft use a similar power source.
the nuclear power sources that spacecraft use are RTGs (Radioisotope Thermoelectric Generators), which generate electricity from the waste heat of absorbed nuclear decay radiation. compared to these batteries they're much bulkier and have shorter lifespans but much higher power output.