Advanced scientific calculators are getting more powerful, yet they’re usually powered by a small *non-rechargeable* battery and the size of the solar panel on there is incredible tiny. How does a panel that small even make a significant contribution to the power available given that it can’t be used for recharging the battery?
In: Technology
Small solar panels don’t generate that much power, but it just so turns out that calculators don’t need that much power! It’s basically the only electronic device that can be solely powered by constant light.
People want them because it means they don’t need to replace the batteries as much, or in some not at all.
Most calculators do still have a battery because not all environments have bright enough lights to generate the electricity, but when you do have enough power then you don’t have to use up power from the battery.
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