this post was submitted on 13 Jan 2024
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Betavolt's miniature battery could spell the end of smartphone chargers (mobilesyrup.com)
submitted 10 months ago by floofloof@lemmy.ca to c/technology@lemmy.world
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[–] Death_Equity@lemmy.world 8 points 10 months ago (1 children)

The nuclear battery for a phone would be larger than the one in the article and likely paired with a capacitor battery. So the nuclear battery is constantly outputting 1w to a capacitor that stores energy that the device draws from.

Phones don't use tons of power constantly and the standby power needs are fairly low.

[–] NeoNachtwaechter@lemmy.world 3 points 10 months ago

Just calculate an average day's energy example. Let's say, you charge your 5000mAh battery once per day from "10%" 2,6V to "100%" 4,2V. That makes about 8Wh. So your average for the whole 24 hours is 0,3 W, or 300 mW or 300.000 μW.