I feel this forum has a decent selection of older people so I'm going to posit this question.
You're relaxing after a day of doing what you do. Working if you're still working, whatever else if you're retired.
It's dusk. Not quite dark yet but...
Show the screenshot to your credit card company and have them reverse the transaction.
At this point you canceled the transaction and they took your money anyhow. That's not allowed.
I should rephrase my question because I know about the auto discharge. That was NOT the question.
The question was "will the chargers draw power away from the batteries when the batteries are in the chargers and the charges are not plugged in?"