this post was submitted on 08 Aug 2024
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About to destroy OPs entire career with one short
Ah, the flintstone of the modern age
You shouldn't charge a battery pack at the same time you're discharging it unless it's specifically designed to allow that. Most consumer power banks are not designed to do that.
It's doubly stupid to charge it from itself.
Seat's taken
I once did that with a Samsung powerbank I have. Daisy chained the powerbank to charge itself and a phone in sequence.
The only thing that failed afterwards was one of the cables, but suffering a loss was definitely the reason I didn't attempt to do that again.
Firefighters hate this one easy trick!
I once charged my phone by holding it over an induction cooktop. Only for a couple of seconds though as I was afraid to fry my phone, but it did it over 40cm
I always wondered what would happen…
You're welcome, now you don't need to risk your own phone in order to know :p
That's actually kind of valid. Though, the induced voltage might be a lot more than phones can typically handle via wireless charging.
Not recommended, however, induction cooktops and wireless charging are the same underlying technology.
I wouldn't gamble that the phone has sufficient over voltage protections on the wireless charging to survive. YMMV.
Yeah, I had the exact same thoughts about the risk to the phone, but curiosity got the best of me. The phone worked fine for several years afterwards so no harm done.
DON'T DO THIS. i did that by mistake once and it grilled my powerbank. was completely broken after. this is beyond stupid.
the hazards of perpetual energy
Assuming it was either 15 years ago or your powerbank is a budget one.
My powerbank would just flip me off and tell me to go fuck myself if I did plug it into itself.
(seriously tho, it would just cut power and turn off immediately. If your powerbank doesn't do at least that, then discard it and get another one with more advanced protection features)
was around 10 years and Anker
And it was probably cheap Anker instead of expensive Anker? Maybe that shit just hadn’t hit consumer products yet as well. But yeah, Anker offers a HUGE selection of products from consumer to professional.
What's stupid is buying cheap AliExpress power banks that don't mitigate this situation safely, and instead simply explode, burning your house down...
They are cheap and if you don't need an expensive product, they are mostly fine, but I got a free powerbank with some crappy teen magazine (when I still ocasionaly read those ad filled pieces of shit) and it died on the second charge.
mostly fine
That's not what I want to hear about a high density energy storage solution.
Well it can be a bomb or a fire hazard. Oh well.
Just put it in the microwave to super charge it smh.
Nail it to the side of your house, in the sunlight, for a totally free charge from the sun
Jokes on you, my power bank has solar cells. About the nail though...
My powerbank just detects that it is connected to itself and does jackshit.
Big oil strikes again!!
I wonder by what method it does that? put out a pulse code on the power out and look for it? Some USB cables don't actually carry the data lines through, so.
Something something ground loop detection, maybe.
Probably just sends a number as data, and if it gets it back then doesn't charge.
You're right that some cables don't carry data, but most do and as long as the cable that comes with it does then it's going to be fine for 99% of cases.
There'll often be a way to break it like going through a USB hub, but most people aren't actively trying to damage things. I can see people wrapping the cable around it and plugging both ends in to stop them flapping about though.
You either have a ping before connecting and if you get a response don't do it. Or you send some high frequency wave additionally to the power. You can detect that signal and then stop accepting the power.
Basically like ethernet over powerlines work.
I imagine plugging a powerbank into itself just causes a short circuit. Detecting that isn't the most uncommon thing fafaik.
What about all those usb handshakes? It think it will just drain itself with heat and damage the battery slightly while doing so.
Next technological revolution will be breakers in powerbanks
There should be a bunch of tiny fuses in there
Just buy another one and plug them into a ring.
Just like at work: Forward office calls to your mobile. Forward mobile calls to your office phone.
Get your work done until everybody finds out and starts wasting your time again 😂
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