Anyone know what type of capacitor is used in Faraday flashlight?
Faraday Flashlight? what capacitor it uses?
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Re: Faraday Flashlight? what capacitor it uses?
I have the smaller one that someone gave to me. It has no capacitors, it has the thingy that shakes up and down, a bunch of wire wrapped around the center that has each end soldered to a circuit board, really thin wire that looks useless. It then has 2 3.3v CR2032 coin batteries slid into it, the contacts are soldered onto the circuit board also. This flashlight worked for a while, then went dead, can shake till your arm falls off and no light. Put new batteries in it and it works fine again.
Maybe I got a ripoff version.
Looking closely it appears as though one end of the wrapped wire solders to the negative battery contact, the other side seems to be soldered on top of the pcb between 2 holes, the holes are wide open, no wire or solder.
Whipped out the scredriver and took out the pcb, the postive side of the battery contact is wired straight to the LED, the negative side is wired to the springy peice of metal that the on button pushes down to contact another piece of metal and turn on the led. The second end of the coiled wire from the shake contraption is just stuck out of the way and does not contact any of the electrical workings.Last edited by Fatal0E; 09-16-2006, 10:34 PM. -
Re: Faraday Flashlight? what capacitor it uses?
lol... you mean the stroke it like you mean it flash light.. lolYa'll think us folk from the country's real funny-like, dontcha?
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Re: Faraday Flashlight? what capacitor it uses?
I heard that the expensive one has the capacitor and cheap one has the battery.Comment
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Re: Faraday Flashlight? what capacitor it uses?
I was on a yacht yesterday and needed a light to look in at the rudders.
Opened a back cabinet and found this jumbo sized shake em light.
It looked exactly like a big dildo, whacked it about twenty times and it did the trick.JimComment
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Re: Faraday Flashlight? what capacitor it uses?
Every type I have uses button rechargeable batteries that charge from the coil magnet and keep it lit for a short period of time.
That time is getting shorter as these get older.The smallest one has two batteries, the medium three, I didn't see how many were in the super dildo size.JimComment
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Re: Faraday Flashlight? what capacitor it uses?
There are allegedly two kinds - one with a super capacitor and no batteries, and the other with no capacitor and lithium button cells instead (this is the el-cheapo knockoff). The second one does not charge the cells, but has a switch to select the power source - the lithium cells or the flywheel/solenoid. This is the only kind I have seen commonly available.Comment
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Re: Faraday Flashlight? what capacitor it uses?
I can't believe I'm taking these cheapo things apart but I have found a Matsushita cap
5.5 volts sitting on top of two 2023 button cells and a bridge connected across the charge coil. It looks like .1uf and has brown oozing out.
I reassembled it and will now run it over with the truck.JimComment
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Re: Faraday Flashlight? what capacitor it uses?
2023 or 2030 is only a battery size, there are rechargeables in this size too. The ideal would be to have BOTH a supercap and button cells, so that the lower impedance of the supercap results in it building a charge faster, and the higher the voltage rises, the more that rise works to overcome the impedance of the button cells to charge them at a higher rate, but only higher relative to their prior rate, always the supercap charging to peak voltage fastest.
They are not premium flashlights though, so you get one or the other, battery or cap. In the former, you should have longer runtime but less efficient charging and shorter lifespan... a tradeoff that might be better for some people or worse for others.Comment
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Re: Faraday Flashlight? what capacitor it uses?
I think those cheaper faraday flashlight might have no capacitor.. and the expensive one has a capacitor inside...
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FlashlightzComment
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Re: Faraday Flashlight? what capacitor it uses?
I say to hell with those cheapo flashlights if you want a rechargeable flashlight.
Just use a crank generator like those portable radios have and have it charge a NIMH cell like cordless phones use.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: Faraday Flashlight? what capacitor it uses?
Geniune shake flashlights uses rare earth pellets in both ends with free floating pellet so you aren't feeling that free-moving magnet striking and use super caps.
The ones that use rechargeable battery and rubber stops aren't original. It's copycat.
Cheers, WizardComment
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