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> One of the more difficult features was the rechargable battery. Flat ones do exist. I have one eink TOTP card that's no thicker than a normal credit card. A
by wkat4242 1y ago
> One of the more difficult features was the rechargable battery.
Flat ones do exist. I have one eink TOTP card that's no thicker than a normal credit card.
And also an airtag style tracker that's about twice as thick. Maybe it uses the same kind of battery.
- bookofjoe 1y agoO.4mm thick rechargeable battery: https://www.lithium-polymer-battery.net/ultra-thin-lithium-polymer-battery/ https://www.lithium-polymer-battery.net/ultra-thin-lithium-p... Standard credit card: 0.76mm thick
- uticus 1y agoseems dangerous to have terminals of battery exposed, shorting (and with rechargeable, burning) hazard
- spacedcowboy 1y agoSome conformal coating spray would probably be all that’s needed.