Monday, April 5th 2010
RCA Announces WiFi Powered Battery
RCA has named the batteries AirPower and envisions they will serve as a backup power source to normal battery charging methods. While it is obvious that enough power couldn't be gleaned from a wireless network to keep an active device running, an AirPower not in use could charge in as little as 6 hours. Naturally this is abysmally slow compared to current wired charging technologies. However, if the batteries are priced right they might give you one less thing to worry about since you wouldn't have to worry about plugging in and unplugging unattended batteries.
Source:
bit-tech
33 Comments on RCA Announces WiFi Powered Battery
They have to boost the voltage and thus losing energy in the process.
No one bothered because it's impractical.
WiFi signal has too low a level of energy, it's also not directed, meaning this device can use only fractions of the transmitted power.
Leaving a device in a wifi area (aka my house) to charge would be amazing...