- Supercapacitors turn charging time from hours to just seconds
- Fast charging exposes the true limits of lithium-ion battery chemistry
- Supercapacitor technology does not have sufficient energy capacity for practical electric vehicles
Dell has introduced a keyboard and mouse combo that charges in five seconds and provides a full day of use.
The new Dell Pro 7 compact rechargeable keyboard and mouse relies on supercapacitor technology rather than traditional lithium-ion batteries.
This system delivers unprecedented charging speeds, with a full recharge in less than 5 minutes, powering the keyboard for up to 3 months and the mouse for 1.5 months.
Article continues below
How Supercapacitors Change the Charging Equation
Supercapacitors differ fundamentally from conventional batteries in the way they store and release energy.
Unlike lithium-ion cells that rely on chemical reactions to store energy, a process that inherently limits the rate of charging, supercapacitors store energy electrostatically.
By combining fast charging with moderate power storage, Dell helps create a system where devices are ready for use almost immediately.
Dell’s implementation of this technology in Pro 7 devices eliminates the need to leave devices plugged in overnight or carry spare batteries for critical times.
The company also claims that the mouse is the world’s lightest rechargeable pointing device that does not use a lithium-ion battery.
The compact design makes these devices ideal for mobile professionals, consultants, or anyone moving between shared offices, conference rooms, or home offices.
The keyboard offers quiet keystrokes for minimal disruption, while the mouse offers precise tracking without requiring heavy batteries.
This technology could reshape the electric vehicle (EV) industry in the coming years.
Electric vehicles rely almost entirely on lithium-ion batteries that store energy through chemical reactions, and in a typical electric vehicle, a full charge takes about 30 minutes with fast chargers or several hours with home setups.
This process typically provides a range of between 300 and 500 km, depending on the vehicle, but the limitation is not only the speed of the charger, but also the underlying battery chemistry that governs energy storage.
Injecting energy too quickly into lithium-ion cells generates heat, accelerates degradation and reduces long-term performance reliability.
In theory, an electric vehicle powered by supercapacitors could recharge in minutes rather than hours with current systems.
Such systems can also handle rapid bursts of energy more effectively, improving acceleration and regenerative braking performance.
There is a trade-off, however, as supercapacitors currently store much less energy than lithium-ion batteries.
This limitation means that vehicles would experience reduced range if supercapacitors were used alone.
Supercapacitors also tend to discharge stored energy more quickly over time, especially when the vehicle remains idle.
A more practical solution is to combine lithium-ion batteries with supercapacitors in a hybrid energy storage system.
This approach could improve charging speed, extend battery life, and improve performance without sacrificing overall battery life.
The same principle seen in Dell accessories suggests that future EV systems could better balance charging speed and endurance.
Follow TechRadar on Google News And add us as your favorite source to get our news, reviews and expert opinions in your feeds. Make sure to click the Follow button!
And of course you can too follow TechRadar on TikTok for news, reviews, unboxings in video form and receive regular updates from us on WhatsApp Also.
