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However, Betavolt states that it uses a different approach.

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Close up of Betavolt nuclear battery

(Image credit: Betavolt)

size of the nucleat BV100 Betavolt battery next to a coin

(Image credit: Betavolt)

Breakdown of the elements used to create the BV100 Betavolt nuclear battery

(Image credit: Betavolt)

Close up of the nuclear battery BV100 created by Chinese company Betavolt

(Image credit: Betavolt)