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Dell's new tech: Instant charge, all-day power
3 Apr
Summary
- Dell's new combo charges in five seconds for a day's use.
- Supercapacitors store energy electrostatically for fast charging.
- EVs could see rapid charging via hybrid battery-supercapacitor systems.

Dell has unveiled a new keyboard and mouse that utilize supercapacitor technology, allowing for an unprecedented five-second charge that provides a full day of operation. This system moves away from conventional lithium-ion batteries, which have inherent limitations in charging speed due to their reliance on chemical reactions. Supercapacitors store energy electrostatically, enabling near-instantaneous recharging.
The rapid charging capabilities of Dell's Pro 7 peripherals mean users no longer need to wait for devices to charge overnight or carry spare batteries. The company also highlights the mouse as the world's lightest rechargeable device without a lithium-ion battery, making the combo ideal for mobile professionals.
This supercapacitor advancement holds significant potential for the electric vehicle (EV) industry. While current EVs depend on lithium-ion batteries that require lengthy charging times and can degrade with rapid charging, supercapacitors offer the theoretical possibility of recharging an EV in minutes. They also enhance performance for acceleration and regenerative braking.
However, supercapacitors currently fall short in energy storage capacity compared to lithium-ion batteries, which impacts driving range and leads to faster energy discharge over time. A practical future for EVs likely involves hybrid systems that combine lithium-ion batteries with supercapacitors to balance charging speed, battery lifespan, and overall driving range.