It is no longer big news that Xiaomi has announced a new technology that promises to enable wireless charging (5W) at a distance of several meters. In fact, according to the Chinese giant, the same transmitting device may be able to charge more than one smartphone at the same time, and apparently, obstacles will not be a problem.
In other words, we have any user’s dream here! However, isn’t this too good to be true?
Xiaomi wants to charge your smartphone from meters away … But is this possible?
Therefore, according to several experts, despite the fact that it is excellent to see innovation and advances in the technological market… It is very likely that this Xiaomi ad is only for “English to see”. In other words, it is a technology that will never reach the market.
After all, from an engineering perspective, the efficiency of these transmitters is so low, that it would take an input of more than 1000W to be able to bring 5W to a single smartphone.
In fact, if the smartphone is not static in a precise position, no energy will reach the target. That is, while Xiaomi claims that the “mmWave waves of energy” will be able to pass any obstacles… Most likely, grabbing the phone, putting it on the table, or just walking around the house, is more than enough to finish loading.
Not to mention the price of the transmitter, which would most likely exceed $1000.
In case you don’t know, the current wireless charging standard (Qi) needs a lot of proximity (max distance is 4cm), and even so, it is extremely inefficient in relation to cable charging.