Here one that works... Take your phone... Put it down
But then you cant use it
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Or you could just turn your phone off.
Then you cant use it
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I personally bought an Anker Astro Slim (I believe it was $19) and a Belkin 6 inch lightning to USB cord (I believe it was $12). Not sure what the current prices are but you can find both on Amazon pretty easily.
Not to be stupid or anything how much can astro slim charge the phone??