3 ms·
> A couple hundred hours would be nice. The benefit of a normal calculator is that it works without charging really being a thing that most people have to worry
by blattimwind 8y ago
> A couple hundred hours would be nice. The benefit of a normal calculator is that it works without charging really being a thing that most people have to worry about.
This is almost certainly due to using what looks like either a transmissive LCD or an OLED display, which require a lot of power.
- saagarjha 8y agoYeah, I'd love to see something like an E-ink display that holds its charge much longer.
- froindt 8y agoHow would an E-ink display work for a calculator? I haven't used them for more than about 20 minutes in my life, but as long as there isn't a lot of lag while typing, it seems line it'd be a good choice. Much of the time a calculator is glanced at while doing math on paper or sitting idle while waiting for the next input. A 0-energy display would be ideal for this. It'd be interesting to see a breakdown of energy and energy consumption by part on a calculator.
- blattimwind 8y agoA solar-powered scientific calculator consumes less than one mW.