small half dollar sized Qi wireless body implants to emit electricity for personal devices charges over night with blanket of electricial QI pad blanket
using also Earth's natural invisible radiowaves with radiovoltic recharging cells
not photovoltaic rechargeable (solar cell) but radiovoltic rechargeable
https://github.com/c4pt000/radiowavevoltic-harness-natural-radiowave-magnetosphere-for-energy