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20 second phone charger

Stelter
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Shut up and take my money!

Hope I could help!

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Old news, talked about it on the WAN show already but still awesome stuff

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that is OLD news, dude.

 

because it would make a big part of the battery industry go out of business, I guess.

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Now make something like that for electric cars. (30 minute charge for a car would be viable for long distance travel)

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Now make something like that for electric cars. (30 minute charge for a car would be viable for long distance travel)

I guess this is better then the battery swapping method at charging stations.

"When in doubt, don't take your wallet out." - Dad


 


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This method can't be good for the battery's longevity...

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This was posted like 6 months ago. 

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At least it doesn't involve a microwave...

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- George Carlin (1937-2008)

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the problem with charging a battery fast is that it creates lots of heat ...

like if not controlled the battery can melt or at least degrade a lot. my nexus 4 already throttle it s charging to preserve it s battery when running 1A... i can t imagine how. many amps it takes to charge in seconds...

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This method can't be good for the battery's longevity...

Sources?

 

the problem with charging a battery fast is that it creates lots of heat ...

like if not controlled the battery can melt or at least degrade a lot. my nexus 4 already throttle it s charging to preserve it s battery when running 1A... i can t imagine how. many amps it takes to charge in seconds...

LiPo batterys dont just burst into flames. They usually only explode/burn when they are puncured or short circuited.

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EPIC FACEPALM. It is not somthing that will charge your current phones battery in 20 seconds. its a battery technology that will need to be used in the phone itself. Its a super capacitor of sorts. here is an article that actually has the facts right.

 

http://www.dailytech.com/High+School+Student+Creates+20Second+Cell+Phone+Charger/article31580.htm

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I guess this is better then the battery swapping method at charging stations.

 

Yeah, can't wait to spend half an hour dragging 250-300kg of batteries around at a "filling station" :(

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Yeah.  At least with current battery tech.

 

Won't this degrade it in some way?

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If you have an iphone and lightning cables you can use your microwave for even faster charging! ;)

dont forget about that water proof update!

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LiPo batterys dont just burst into flames. They usually only explode/burn when they are puncured or short circuited.

i never talked about flames... i just said that the reason no one uses that fast of a charging is because ofbthe heat generated.

i know my phone throttle heavily once the battery hits 40c and that is to preserve the components of the phone.

(yep phones arent just batteries)

Anything I write is just a comment, take is as such, there is no guarantees associated with anything I say.

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Sources?

 

LiPo batterys dont just burst into flames. They usually only explode/burn when they are puncured or short circuited.

Charging at a high amp rate is, and always has been, bad on batteries.

 

LiPo's explode (bursting into flames) when charged at higher current than intended for the battery, also they sometimes explode when charged after being entirely drained, but nearly everything has low voltage cutoffs to prevent this from happening. As a guess I'd say probably 90%+ of LiPo fires are during charging (or people puncturing them to film the explosion).

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the problem with charging a battery fast is that it creates lots of heat ...

like if not controlled the battery can melt or at least degrade a lot. my nexus 4 already throttle it s charging to preserve it s battery when running 1A... i can t imagine how. many amps it takes to charge in seconds...

 

 

A 2300 mAh battery being charged at 1A would take 2.3 hours to charge. My math might be off here, but I think that would mean 138 amps to charge in 1 minute and 690 amps to charge in 20 seconds.

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I can smell exploded batteries ..

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A 2300 mAh battery being charged at 1A would take 2.3 hours to charge. My math might be off here, but I think that would mean 138 amps to charge in 1 minute and 690 amps to charge in 20 seconds.

that seams a bit low as the phones take a 5v signal and turn it into 14+v so there will be heat created there and needs more amps.

still 690 amps at 14v is close to 10 000 watts... i can see some problems there...

btw a 0000 gauge wire can only transmit 300amps and that cable is more than 0.5"in in diameter.

Anything I write is just a comment, take is as such, there is no guarantees associated with anything I say.

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Yeah, can't wait to spend half an hour dragging 250-300kg of batteries around at a "filling station" :(

They actually used robots to do it :)

"When in doubt, don't take your wallet out." - Dad


 


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