With no cord or mat, this wireless charger can power-up your phone completely contact free

Silicon Valley start-up Pi on Monday claimed it had developed the world’s first truly wireless and contact-free charger, that does away with cords or mats to charge devices.

Pi chargers, about the size of a small table vase, operate on standard charging technology used in Apple or Android smartphones designed to be powered up wirelessly.

But instead of cords or mats, the conical creation charges smartphones remotely with magnetic waves.

Magnetic fields are an ideal way to safely send energy to portable electronics, said Pi chief technology officer Lixin Shi, who co-created the charger with John MacDonald.

The trick was bending magnetic waves to find smartphones, the co-founders said during a presentation at the TechCrunch Disrupt start-up scrum in San Francisco.

“The hard part was figuring out how to make magnetic charging more flexible, multi-device and extend its useful range,” Shi said.

“It took us over a year to complete the mathematical proof that makes it all possible.”