Every two years there is a new announcement of a betavoltaic battery, like using Carbon 14 to power it for 5000 years. They have very low power, lome 100mW, enough to power a watch but not a phone.
You propose using Helium 3, that has a shorter half life. My old phone got broken and when I went to the repair shop the owner noted that the phone was was like 10 year old and almost laugh.
So I think a shorter half life is good, but how are you planing to store the He3 without leaks? It looks like a nightmare.
Every two years there is a new announcement of a betavoltaic battery, like using Carbon 14 to power it for 5000 years. They have very low power, lome 100mW, enough to power a watch but not a phone.
You propose using Helium 3, that has a shorter half life. My old phone got broken and when I went to the repair shop the owner noted that the phone was was like 10 year old and almost laugh.
So I think a shorter half life is good, but how are you planing to store the He3 without leaks? It looks like a nightmare.
PS: It's not a "Show HN" until we can try it. https://news.ycombinator.com/showhn.html
Too late to edit: I just notice it's H3 instead of He3. H3 is easier to store. How are you planing to store it anyway?