Among the many laptops and desktops that Lenovo announced at CES 2025 is an intriguing peripheral: the Self-Charging Bluetooth Keyboard. This unique productivity keyboard ditches the traditional battery, instead utilizing solar and ambient light to charge and store energy.
The Lenovo Self-Charging Bluetooth Keyboard might seem like your run-of-the-mill keyboard, but it comes with a party trick that might just save you a buck in the long run. Using advanced photovoltaic technology and fast-charging supercapacitors, the keyboard actually harnesses ambient light to store energy, eliminating the need for disposable batteries.
It doesn’t say what type of capacitor is used, but electrolytic capacitors can basically be charged and discharged indefinitely. They don’t wear down . However they age based on temperature. The ones at my work have 2000h @ 105°C. For every 4 °C coolor the lifetime doubles as a rule of them.
Yes, it does. They’re supercapacitors.