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A 10-Year Battery for AirTag

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673 points dmd | 2 comments | 18 Dec 24 18:17 UTC | HN request time: 0s | source
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duxup ◴[19 Dec 24 18:57 UTC] No.42464590[source]▶
At 10 years I kinda wonder what the odds your AA batteries become problem occasionally (leaking, etc) long before the Airtag... although they are Lithium batteries.
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riffic ◴[19 Dec 24 19:13 UTC] No.42464742[source]▶
are lithium batteries known to expand or catch fire in the AA form factor?
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1. homebrewer ◴[19 Dec 24 20:27 UTC] No.42465387[source]▶
I think you misunderstood GP. Lithium AA batteries are very reliable and keep charge for at least ten years (the standard metric is losing approximately 1% per year), that's what he's saying.

They won't burn because they contain metallic lithium (and not lithium salts like rechargeable cells) and don't contain easily flammable organic solvents (yep, like rechargeable cells). There are videos on YouTube of people disassembling them with no problems (for example, to extract metallic lithium for chemistry experiments).

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2. riffic ◴[19 Dec 24 20:35 UTC] No.42465456[source]▶
it's a sincere and earnest question - I didn't know. I appreciate the additional info.