Recall that Tesla and Edison battled over the danger of Edison's preferred DC current's danger to electrocute people. AC was safer because you could let go of it, the argument went.
"While any amount of current over 10 milliamps (0.01 amp) is capable of producing painful to severe shock, currents between 100 and 200 mA (0.1 to 0.2 amp) are lethal. Currents above 200 milliamps (0.2 amp), while producing severe burns and unconsciousness, do not usually cause death if the victim is given immediate attention. Resuscitation, consisting of artificial respiration, will usually revive the victim.
Remember that cattle prods and Tasers are powered by anything from two AA cell batteries to a 9 volt battery.
You can be easily killed by 1 Amp in the right location across the right muscle. . . especially if it goes across the heart.
This news article is not clear about how it occurred. It's possible she dropped the charger connected to an extension cord into the water. It's also possible it was a third party charger that was defectively designed which allowed full line voltage to reach the phone. Hot phone from overcharging may have caused her to drop it. . . and ZAP! But that is pure speculation.
She probably dropped her $600 phone into the water and then got so upset, she died of a heart attack.
“Remember that cattle prods and Tasers are powered by anything from two AA cell batteries to a 9 volt battery. “
Tasers emit a very high frequency AC current. And they don’t kill anyway. Phone chargers use a 5-9 volt very low amp DC current akin to a C cell battery. Trying to compare these two is akin to comparing lightening to a lightening bug.
You're thinking of George Westinghouse, not Nikola Tesla. And AC was more, not less, dangerous, at least according to Edison.
Westinghouse was promoting AC power distribution and was winning over Edison because AC is technically superior in that application. Edison had implemented some of the very earliest electric utilities, and they were DC-based.
However, AC is indeed more dangerous to humans. Hence, Edison tried to coin the transitive verb "to westinghouse", meaning "to electrocute". And, indeed, all implementations of Old Sparky have been AC-powered. As are all modern power grids.
They charge pump to 50,000 volts.
Although, rather an invalid argument at 50-60 cycles per second.