A couple things stick out in your story. first off, there’s no such thing as a “not spot” when it comes to radio. That’s not how RF energy works at all. Second, zero news stories show up when I search for such a story. So my guess is that this tall tale has spread in legend form and relies on people not realizing how radio signals work.
You likely aren’t going to get enough energy to make up for the losses incurred when boosting voltage to 4.2 volts or whatever your battery requires. There’s tons and tons of scam devices out there in the world that attempt to convince people these devices make sense, but they really aren’t usable for anything meaningful.
Charging a battery with a couple microamps per hour. Would probably negates things like self-discharge? But certainly wouldn’t recharge a battery that you have in use with a device. And if that device has radio or storage attached to it, you definitely aren’t gaining enough electricity.
Aside from tobacco, all of those things were known to be dangerous but used commercially anyway because they were cheaper than alternatives. Today’s equivalents are PFAS, plastics, and sweeteners of every kind. You will die with all of them in your body.
Yeah, exactly. This isn’t how radio signals work at all. This is a tall tale and never happened. When I searched for such a story, none came up. When I removed the location and searched for the same type of story, thousands of them are floating around the internet. Powering military tents from radar emissions, powering homes from radio tower emissions, all of them are re-tellings of stories someone once heard from the 1930s, 1940s, and so on. They’re effectively chain letters for the confused.