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Charged Or Discharged


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#1 Thinh

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Posted 02 September 2016 - 02:54 AM

Dear all,

I have an amusing experiment with my smart phone charger. That is, after charging it fully, I connect its input and output toghether, and get surprise result. 
Could you see in my youtube clip and give your explanation here




Thanks

Thinh Nghiem



#2 GAHD

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Posted 07 September 2016 - 02:23 PM

All i see is you slapping the battery pack around? How about some commentary.

What's going to happen with a cheap charger: bleeding your battery charge slowly by the resistance of the usb wire. Turns the chemical energy, into electricity, into heat.
->If the pack is REALLY cheap and doesn't conform to USB standards(re: no 500mA fuse, thermal cutout), it will probably heat/blow up the battery, and could melt the cord.

more expensive(or well engineered) battery pack: Internal microcontroller uses the TX&Rx lines to tell it's connected to itself in a short, caps off the flow to the 5v and does nothing.



#3 Thinh

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Posted 08 September 2016 - 12:04 AM

Neither melt nor heat at all, Creating.

 

The light keeps to be red until it discharges completely. It's why I surprised



#4 TaimurMubeen

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Posted 29 November 2016 - 03:57 PM

It's Apple 🍎 Dear... 1 Of The Leading Company. :)