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**Duracell Charger Pad**

I Recently,
Came Across, Probably.....
One Of The Coolest Phone Chargers I've Ever Seen.....
I Was Watching TV & Saw A Commercial Ad For:
The "Duracell" Charger Pad!!
Yeah....."The Battery Co."
Anyways, It's Basically A Pad That You Just Drop Your Phone Onto,
& It Charges, That's It!!
No Matter What....
Brand, Version, Model, Of Phone You Have!!
**Doesn't Matter**
Cool Huh?
There Is No Longer Any Stupid Cord, To Be Plugged Into Your Phone!!
No Need To Carry Multiple Chargers For Different Phones,
You May Have!!
Plus....
You Can (Supposedly).....
Charge Up To *Four* (4) Phones At Once!!
From What I've Seen,
It Looked Like One Of The Best,
"New Phone Inventions"
I've Personally Seen In A While!!
**If It Works** Lol!!
Can Anyone Confirm????
Sent from my HERO200 using XDA App
Sent from my HERO200 using XDA App

Things like this have been around for a while. You need to install a "reciever" (basically an antenna akin to RFID tag antennas) to get the resonance right so the power transfers wirelessly. It's not just "drop-and-go", if it were, there'd be a lot more of them around. They work but I'm not 100% sure on the effeciency and performance in terms of "speed-charging" but they do work.

dbzfanatic said:
Things like this have been around for a while. You need to install a "reciever" (basically an antenna akin to RFID tag antennas) to get the resonance right so the power transfers wirelessly. It's not just "drop-and-go", if it were, there'd be a lot more of them around. They work but I'm not 100% sure on the effeciency and performance in terms of "speed-charging" but they do work.
Click to expand...
Click to collapse
Ohhh.... Ok, Thanx For The Info!!
Sent from my HERO200 using XDA App

Not worth it
Actually I have one of these. The concept is cool, and I thought it was the greatest thing, not having to plug in your phone. But what they don't really stress in the ads is the fact that you need an appendage attached to your phone for this to work. And this appendage is not too small, changing the shape/size of the phone when pluged into its charging port, and also it's quite expensive to get if you want a new one. And this is not really a contact-less charger pad, mine has alternating strips where two of the three contact points on the charging appendage should touch or it won't charge the phone. I used it for a couple of weeks, then stopped using it because of how much pain in the back it was to use it.

ProcessorHog said:
Actually I have one of these. The concept is cool, and I thought it was the greatest thing, not having to plug in your phone. But what they don't really stress in the ads is the fact that you need an appendage attached to your phone for this to work. And this appendage is not too small, changing the shape/size of the phone when pluged into its charging port, and also it's quite expensive to get if you want a new one. And this is not really a contact-less charger pad, mine has alternating strips where two of the three contact points on the charging appendage should touch or it won't charge the phone. I used it for a couple of weeks, then stopped using it because of how much pain in the back it was to use it.
Click to expand...
Click to collapse
Wow!!
There's Always A Catch I Guess, Huh? Kind Of Figured It Couldn't Be That Simple.....
Thanks For The Info!!!
Sent from my HERO200 using XDA App

LED flash for your SGS 4G

http://forum.xda-developers.com/showthread.php?t=2025485
http://www.indiegogo.com/coverlight

looks interesting, but i'll pass on this. I hope I'll get a note II soon enough.

itzik2sh said:
http://forum.xda-developers.com/showthread.php?t=2025485
http://www.indiegogo.com/coverlight
Click to expand...
Click to collapse
I was just trying to take a picture in the dark yesterday and someone asked me if my phone had a flash on it . If the price is right I might consider getting one.

The inventor is Italian and he needs 26K$ to initiate mass manufacturing.
the price - 25-30$ plus 10$ delivery seems exaggerated, but maybe it can be lowered. I think it's a great idea.

This is the best DIY alternative I have found...
1. Back replacement - Dealextreme 3.9$
2. 10 3.7V LED - eBay - 8.3$
3. 20 Mini push-buttons - eBay - 2.99$
overall
15$ per one device
5.03$ per device for 10 devices
4.88$ per device for 20 devices
plus wires and some solution for the + and - legs out.
EDIT : OK, gave up, just ordered one...

That looks really cool. Do you think it can be controlled by the software, or do you have to physically press the button for the led to turn on?
Sent from my SGH-T959V using xda app-developers app

pisherthefisher said:
That looks really cool. Do you think it can be controlled by the software, or do you have to physically press the button for the led to turn on?
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
You have to press the button. There is no path for it be hooked up. Granted with full jtag of the chip, you could probably find a few GPIO that aren't use and use that to trigger a signal to a small timer chip to make it flash, but one it requires fully knowing the GPIO of the chip and how it's used in our phone, and finding pathways from the chip to solder to, and opening your phone and soldering to the board which is very, very, very, very small soldering.
Basically, no. lol. Press the button, and it shines an LED light which lights up a scene slightly.

Bump
sent from me

Will he still sell the coverlights regardless if he gets his funds or not?
Sent from my SGH-T959V using xda app-developers app

pisherthefisher said:
Will he still sell the coverlights regardless if he gets his funds or not?
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
No, the funding needed is the amount needed to get a company to start making them and make an initial batch. They're not going to make molds and all that stuff for 4 cases.

He has 5 days left with only 1,000 out of his 26,000 dollar goal so it looks like its not happening

I already ordered one, so I still hope to get it (as a gesture to the true supporters).
I think the draw was the price being too high.
Anyway, I liked the idea and I will make one myself if this initiative gets cancelled.

As one of the contributors (donated 30$) I just got this message via mail (also appears in the indiegogo site updates) :
Hi everybody! unfortunately we didn’t reach our goal to start the production of COVERLIGHT, but thanks to all yours feedback and suggestions we understood how to improve this idea… Now we are working to an universal version of coverlight, which is controlled by a camera app… It will be compatible with all the devices, because it’s a “plug and play” device Follow @coverlight1 on twitter or facebook to stay informed about it… Happy New Year!

A "plug and play" flash compatible with all devices huh? That sounds interesting. I'm guessing it would be plugged into the audio jack? I'm glad the idea wasn't abandoned, thanks for the update itz
Sent from my SGH-T959V using xda app-developers app

Just got refunded for the project.
sent from me

This might be a simple solution...
http://www.ebay.com/itm/Viatek-LED-...579855?pt=PDA_Accessories&hash=item518e2bb44f

Im glad the project was not abandoned seams like it has a lot of potential.

I'm having some thoughts about implementing a solution that will include :
1. universal compatibility (for all devices).
2. involve no cover change.
3. include no batteries.
but this leads me to some technical questions I will be glad if our experts can answer :
1. Is it possible to make an app virtual flash machine, that when using any camera app - it will be tricked to think that we actually have a flash led ?
I suppose it is possible...
2. In that case is it possible to get the camera app shooting trigger via the audio jack or power jack ? I suppose it is possible, but yet again, how do you make the hardware recognize this trigger ?
3. Is it possible to consume power from the power jack (usually used to charge the device).
If it is, then we can send the power signal instead of a trigger and that could simplify the hardware needed...
If the answer to all of these is yes - then we can make a simple LED flash, (audio?) power jack cable, possibly direction adjustable cable. it will be light weight, reliable and simple to use and involve no cover swapping.
most of the work will be done by the virtual flash machine app and the device hardware.

itzik2sh said:
3. Is it possible to consume power from the power jack (usually used to charge the device).
If it is, then we can send the power signal instead of a trigger and that could simplify the hardware needed...
Click to expand...
Click to collapse
This part should be possible with usb otg support

I took apart my powerskin today and I think I can come up with a way to wire a LED in the case and power it from the power skin battery. It's just going to be finding a good suitable LED for it. Obviously no triggering from a camera apps.

Nokia Qi Wireless Car Charger CR-200

I'm surprised we missed this one. There's a new QI wireless car charger that's been announced by Nokia.
Available in May (possibly April) and retails for 69EUR
EDIT: Confirmed, looks like it's compatible with the nexus 4 (see post #11). NFC may be a little tricky though.
http://www.nokia.com/global/products/accessory/cr-200/

Interesting that this was missed in the mainstream news. As long as it fixes the issues that Nokia's home chargers had with the Nexus 4 it'd be something a great buy.

From MobileFun:
"we can confirm that the holder does feature adjustable holders but we do not have specific details on the minimum and maximum size range (we'll update this asap) Although anything close to the Lumia 920 will be suitable."
I'll keep the thread updated with any new relevant information.
Sent from my Nexus 4 using xda premium

Oh man, never thought of a NFC tag for my car dock. Keeping my eye on this.

Nice find! If this works with N4 and actually gains a charge with streaming music BT and navigation I am sold.

frigidazzi said:
Nice find! If this works with N4 and actually gains a charge with streaming music BT and navigation I am sold.
Click to expand...
Click to collapse
Same here, Im really only posting so this thread doesn't get lost in my CP.

Nokia's official blog says it'll be available starting April 2013.
"Known as the CR-200, this phone holder can be mounted on the dashboard or windscreen of your car and can be used in either a horizontal or vertical position – much like any other phone holder.
However, to save you time and hassle from fumbling for the power cable in the footwell, wireless charging is incorporated right into the design. You can leave the holder plugged into the power outlet, as you’re unlikely to be removing that as often as you would the phone. That means all you need to do the next time you sit in the driver’s seat, is slot in your phone to charge.
Additionally, the holder contains an NFC-tag that’s capable of launching predefined apps on your phone. For example, you can choose to automatically launch HERE Drive when you attach your phone – easy!
Retailing at around €69, the CR-200 comes in black and will be available from April 2013."
http://conversations.nokia.com/2013/02/27/nokia-gear-at-mwc-2013-round-up/

69 euros is like close to a hundred us dollars? As long as I can return it if it doesn't work I will be first to buy and try.
Sent from my Nexus 4 using Tapatalk 2

69eur = 89.61usd
frigidazzi said:
69 euros is like close to a hundred us dollars? As long as i can return it if it doesn't work i will be first to buy and try.
Sent from my nexus 4 using tapatalk 2
Click to expand...
Click to collapse

Anyone wish they would offer these in a light color like white/grey? My old Evo one got hotter than the surface of the sun sitting in my windshield on a long trip (I always took it down to put up a sun screen).

Awww yeah! Works with the nexus 4 (0:50)

Nice! Can't wait to test it.
Sent from my Nexus 4 using Tapatalk 2

This thing hardwired will be fantastic

I'm not sure if this is troublesome, but just before the one minute mark, the charger stops charging the phone for a really brief period of time.

Blazing angel said:
I'm not sure if this is troublesome, but just before the one minute mark, the charger stops charging the phone for a really brief period of time.
Click to expand...
Click to collapse
It could be a number of things that could have caused that. For one, he could have been fidgeting with the car charger while talking and such. We can't multi task too well lol.
But it looked to be consistently charging after panning away.

The only knock is it looks like, just like the Owlpad, the cable comes out of the bottom of the charger. I really wish they would come out the back towards the mount (or better yet be like the Galaxy Nexus mount and go into the base) to better conceal the wire.
Even though I will be getting this when it comes out.

http://www.command.com/wps/portal/3...-Clips?N=5924736+3294737326+3294857497&rt=rud
That should sort you out.

ryan stewart said:
The only knock is it looks like, just like the Owlpad, the cable comes out of the bottom of the charger. I really wish they would come out the back towards the mount (or better yet be like the Galaxy Nexus mount and go into the base) to better conceal the wire.
Even though I will be getting this when it comes out.
Click to expand...
Click to collapse
hopefully that is the only downside, im more worried about it being able to charge fast enough with gps on without overheating the phone like the owlpad.

neotekz said:
hopefully that is the only downside, im more worried about it being able to charge fast enough with gps on without overheating the phone like the owlpad.
Click to expand...
Click to collapse
+1 that's my concern too.
Sent from my Nexus 7 using xda premium

Anyone tested this charger already?

How much pressure can a screen take? Can I rest my head on it?

Not as weird as it may seem
At night I listen to music/radio while I go to sleep. I use a cheap phone at the moment but was thinking about getting a 2012 Nexus 7 that I can use for this (and actually use it as a tablet as well)
Will it be okay if it's under my pillows or will the weight/pressure damage the screen?
Thanks in advance :good:

technicalnoobxda said:
Not as weird as it may seem
At night I listen to music/radio while I go to sleep. I use a cheap phone at the moment but was thinking about getting a 2012 Nexus 7 that I can use for this (and actually use it as a tablet as well)
Will it be okay if it's under my pillows or will the weight/pressure damage the screen?
Thanks in advance :good:
Click to expand...
Click to collapse
Lol your tablet will be fine haha unless you're head is the size of 3 watermelons and weighs 50 pounds then but seriously it won't cause any problems

the question is more about how much damage will the mobile make to your head if the wifi/cell network is running trough your head all night?
except you run radio by earphone receiver with airplane mode on..then never mind

crzykiller said:
Lol your tablet will be fine haha unless you're head is the size of 3 watermelons and weighs 50 pounds then but seriously it won't cause any problems
Click to expand...
Click to collapse
Thanks
deprite said:
the question is more about how much damage will the mobile make to your head if the wifi/cell network is running trough your head all night?
except you run radio by earphone receiver with airplane mode on..then never mind
Click to expand...
Click to collapse
How much damage will it do?

You should be fine. Did that on a plane once, the biggest damage was the droll lol.

technicalnoobxda said:
Thanks
How much damage will it do?
Click to expand...
Click to collapse
well there is no official study about that as far as i know..
just know for myself that i sleep better with airplane mode on and all the network stopped

technicalnoobxda said:
Not as weird as it may seem
At night I listen to music/radio while I go to sleep. I use a cheap phone at the moment but was thinking about getting a 2012 Nexus 7 that I can use for this (and actually use it as a tablet as well)
Will it be okay if it's under my pillows or will the weight/pressure damage the screen?
Thanks in advance :good:
Click to expand...
Click to collapse
I use a quality speakerpillow, it has a long enough lead that I don't risk the phone/tablet and I can rest directly on the speaker and keep volume low and not disturb my partner.
Sent from my A210 using Tapatalk

Better sleep, huh?
technicalnoobxda said:
Not as weird as it may seem
At night I listen to music/radio while I go to sleep. I use a cheap phone at the moment but was thinking about getting a 2012 Nexus 7 that I can use for this (and actually use it as a tablet as well)
Will it be okay if it's under my pillows or will the weight/pressure damage the screen?
Thanks in advance :good:
Click to expand...
Click to collapse
Ha ha... That is really a funny question. But it should be answered. It won't damage your phone unless you move the pillow below your head above your tablet. Use a good cushioned pillow though.
And yes, do turn the airplane mode on. Radiations are not good for your brain. (I'm not expecting more such questions :laugh Just kidding brother.
Ohhh God. Why are we discussing about it? Doesn't it come with Gorilla Glass?

Probably you will have to worry not tossing the phone down to the floor while you sleep.

why you just don't do that and but your phone beside your below

Just buy a quality pillow speaker , then you dont have to worry about getting tangled up in headphones cables aswell

I really wouldn't worry about it for clarifications sake and a technical answer to your questions your main concerns would come from the stress your head would apply to your phones screen. More particularly the relation between the compressive force your head creates and the maximum compressive strength of the material in question before failure of that material under load. (Stress= F/A) The Nexus 7 uses Corning Gorilla Glass which has a maximum compressive strength of 800 MPa. That's 224,808.944 pound-forces per meter^2 and your head does not exert anywhere near that number.
Like I said you really have nothing to worry about you won't damage your screen by laying it under your pillow.

I'm surprised no one brought up the very real possibility of overheating. Sure, you can rest your head on it - but you're smothering it under a pillow and not allowing for the heat it will generate to dissipate.
It would be especially bad if you were charging at the same time - and either way not something I'd recommend anyone do. Why shorten the lifespan of your device by exposure to high internal temperatures if there are other options (like using it with a pillow speaker instead).

Or you could get a wireless headset?

Cranberry juice

What would happen to my phone if I completely submerged it in cranberry juice? I'm trying to pass a Chem class and the professor wants me to do something impressive with my phone since he sees me on it all the time. I showed him Cyanogenmod and the like but he's not fazed. He's like, 75 and doesn't understand computers. I don't know about the electrical capacitance of berry juice so I was wondering if I put my myTouch 4G Slide in a clear bucket of cranberry juice whether or not it would still be on while in the juice.

AndrMatr said:
What would happen to my phone if I completely submerged it in cranberry juice? I'm trying to pass a Chem class and the professor wants me to do something impressive with my phone since he sees me on it all the time. I showed him Cyanogenmod and the like but he's not fazed. He's like, 75 and doesn't understand computers. I don't know about the electrical capacitance of berry juice so I was wondering if I put my myTouch 4G Slide in a clear bucket of cranberry juice whether or not it would still be on while in the juice.
Click to expand...
Click to collapse
You would fry your phone. Nothing you do will be able to impress him as his point is that you shouldn’t be on it in class. Mainly with that device. There is not alot you can do. Maybe remotely login to your home pc. Thats about it. Also Showing him CM is not really impressive. They are turning into the running joke of the android world.

zelendel said:
You would fry your phone. Nothing you do will be able to impress him as his point is that you shouldn’t be on it in class. Mainly with that device. There is not alot you can do. Maybe remotely login to your home pc. Thats about it. Also Showing him CM is not really impressive. They are turning into the running joke of the android world.
Click to expand...
Click to collapse
Well, isn't that a little discouraging?
Maybe I could submerge it in colored mineral oil since it doesn't conduct electricity? I saw some PCs submerged in mineral oil on Youtube.
And how is CM the "running joke of the Android world"? What are you using, MIUI? Or homebrew?
And he honestly doesn't care that I'm on it. He says, "It's your grade. Do what you want." and I have an A+ anyway. He just wants me to do something cool.

AndrMatr said:
Well, isn't that a little discouraging?
Maybe I could submerge it in colored mineral oil since it doesn't conduct electricity? I saw some PCs submerged in mineral oil on Youtube.
And how is CM the "running joke of the Android world"? What are you using, MIUI? Or homebrew?
And he honestly doesn't care that I'm on it. He says, "It's your grade. Do what you want." and I have an A+ anyway. He just wants me to do something cool.
Click to expand...
Click to collapse
Have you been watching the tech news about CM? Check it out and you will know. No I don't use miui they are right there with cm.
As for something cool I guess you could try a remote login to your pc to recover missing homework or something of that nature.

zelendel said:
Have you been watching the tech news about CM? Check it out and you will know. No I don't use miui they are right there with cm.
As for something cool I guess you could try a remote login to your pc to recover missing homework or something of that nature.
Click to expand...
Click to collapse
I mean, yes, CM has screwed up a little in the past few months, I agree, and the weird shenanigans with OnePlus were a little sketch, but I don't think it's worth criticising.

AndrMatr said:
I mean, yes, CM has screwed up a little in the past few months, I agree, and the weird shenanigans with OnePlus were a little sketch, but I don't think it's worth criticising.
Click to expand...
Click to collapse
Have you seen their latest of wanting to take android away from Google? Do they not realize that if Google stopped pushing code to aosp they would die off completely. Then adding in untested code that causes tons of issues, forcing some of their developers to close source their apps so they can make money off of it. Yeah they deserve it. To the point that main aosp based roms have stopped using their sources and are ditching their theme manager.

AndrMatr said:
What would happen to my phone if I completely submerged it in cranberry juice? I'm trying to pass a Chem class and the professor wants me to do something impressive with my phone since he sees me on it all the time. I showed him Cyanogenmod and the like but he's not fazed. He's like, 75 and doesn't understand computers. I don't know about the electrical capacitance of berry juice so I was wondering if I put my myTouch 4G Slide in a clear bucket of cranberry juice whether or not it would still be on while in the juice.
Click to expand...
Click to collapse
Assuming you have done a unit on electrochemistry....why not make a battery to charge your phone.

justmpm said:
Assuming you have done a unit on electrochemistry....why not make a battery to charge your phone.
Click to expand...
Click to collapse
Ah, I see what you mean, but no, we haven't yet. I guess I could do the thing this gal did here:
https://www.youtube.com/watch?v=9_LLj4_3ZRA
This might win.

AndrMatr said:
What would happen to my phone if I completely submerged it in cranberry juice? I'm trying to pass a Chem class and the professor wants me to do something impressive with my phone since he sees me on it all the time. I showed him Cyanogenmod and the like but he's not fazed. He's like, 75 and doesn't understand computers. I don't know about the electrical capacitance of berry juice so I was wondering if I put my myTouch 4G Slide in a clear bucket of cranberry juice whether or not it would still be on while in the juice.
Click to expand...
Click to collapse
You could "do something impressive" within the bounds of Chemistry. Dunking a phone in cranberry juice (or any other flavour) isn't impressive at all. I see someone already suggested making a battery...

MiyagiSan said:
You could "do something impressive" within the bounds of Chemistry. Dunking a phone in cranberry juice (or any other flavour) isn't impressive at all. I see someone already suggested making a battery...
Click to expand...
Click to collapse
Look at post #8

AndrMatr said:
Look at post #8
Click to expand...
Click to collapse
Is that what you've settled on?
If so, onions and proper leads can give you an eye-wateringly bigger jolt than citrus fruits... :crying:

Please do not put your perfectly good phone in cranberry juice.... please.
Instead do this....
Get an old charging cable you don't care about (a lot cheaper to destroy)....
and show you can charge your phone with a make-shift battery.
Whatever battery you make I recommend using a diode connected transistor or some kind of a limiter to limit current to your phone so you don't burn it out incase you make some awesome kind of a bad ass battery.
That will impress your professor.
Tips:
You can make a fruit battery out of:
Four lemons (the bigger and juicier the better)
Four pennies
Five zinc-galvanized nails
Five sets of alligator clips
but I'm not sure if the mA would be enough to charge your phone but it will be enough to power a small LED.

TryHardBlueonMac said:
Please do not put your perfectly good phone in cranberry juice.... please.
Instead do this....
Get an old charging cable you don't care about (a lot cheaper to destroy)....
and show you can charge your phone with a make-shift battery.
Whatever battery you make I recommend using a diode connected transistor or some kind of a limiter to limit current to your phone so you don't burn it out incase you make some awesome kind of a bad ass battery.
That will impress your professor.
Tips:
You can make a fruit battery out of:
Four lemons (the bigger and juicier the better)
Four pennies
Five zinc-galvanized nails
Five sets of alligator clips
but I'm not sure if the mA would be enough to charge your phone but it will be enough to power a small LED.
Click to expand...
Click to collapse
Yeah, I wasn't thinking of a fruit battery, more like an old school voltaic pile made out of coins (like pennies) or metal disks from the hardware store. Depending on which metals and electrolyte you use, you should get 0.5V to 1V per "cell". The diode transistor is a super good idea, and you probably will need a voltmeter to determine how many volts your battery is producing and you should also be able to determine the mAmp being produced. Look at the specs of your the charger for your device and just make sure you don't go over the current or voltage specs. My guess is that you will not be able to generate enough current to fully charge your device, so I would leave it off and just try and get the "battery charging" display to light up for a bit. If you go down this route, be prepared to answer some "chemistry" teacher type questions. The more you know the more impressed your teacher will be.

MiyagiSan said:
Is that what you've settled on?
If so, onions and proper leads can give you an eye-wateringly bigger jolt than citrus fruits... :crying:
Click to expand...
Click to collapse
Well, then, I planned to do something with something related to that. I just might use pennies, foamboard soaked in vinegar, and zinc discs.

justmpm said:
Yeah, I wasn't thinking of a fruit battery, more like an old school voltaic pile made out of coins (like pennies) or metal disks from the hardware store. Depending on which metals and electrolyte you use, you should get 0.5V to 1V per "cell". The diode transistor is a super good idea, and you probably will need a voltmeter to determine how many volts your battery is producing and you should also be able to determine the mAmp being produced. Look at the specs of your the charger for your device and just make sure you don't go over the current or voltage specs. My guess is that you will not be able to generate enough current to fully charge your device, so I would leave it off and just try and get the "battery charging" display to light up for a bit. If you go down this route, be prepared to answer some "chemistry" teacher type questions. The more you know the more impressed your teacher will be.
Click to expand...
Click to collapse
That's exactly what I was thinking. The fruit trick is used too often and has lost its value.

TryHardBlueonMac said:
Please do not put your perfectly good phone in cranberry juice.... please.
Instead do this....
Get an old charging cable you don't care about (a lot cheaper to destroy)....
and show you can charge your phone with a make-shift battery.
Whatever battery you make I recommend using a diode connected transistor or some kind of a limiter to limit current to your phone so you don't burn it out incase you make some awesome kind of a bad ass battery.
That will impress your professor.
Tips:
You can make a fruit battery out of:
Four lemons (the bigger and juicier the better)
Four pennies
Five zinc-galvanized nails
Five sets of alligator clips
but I'm not sure if the mA would be enough to charge your phone but it will be enough to power a small LED.
Click to expand...
Click to collapse
I bought a new phone yesterday, so my old myTouch will be fine to destroy just in case. The camera doesn't work, neither does the flash, or certain other things. I bought it on Amazon for $50.

AndrMatr said:
That's exactly what I was thinking. The fruit trick is used too often and has lost its value.
Click to expand...
Click to collapse
Well if you have voltmeter you can set up your pile and try different electorlytes. Typically the stronger the acid and saltier it is the better. So you can try salt water, distilled vinegar, and salt added to distilled vinegar as your electrolytes and record the voltage/cell for each electrolyte...make a nice table, build your (probably 5V battery) explaining how the table helped you choose what kind to build, make a pretty picture displaying the chemistry involved and badda bing...you are done

MiyagiSan said:
Is that what you've settled on?
If so, onions and proper leads can give you an eye-wateringly bigger jolt than citrus fruits... :crying:
Click to expand...
Click to collapse
Definitely.

justmpm said:
Well if you have voltmeter you can set up your pile and try different electorlytes. Typically the stronger the acid and saltier it is the better. So you can try salt water, distilled vinegar, and salt added to distilled vinegar as your electrolytes and record the voltage/cell for each electrolyte...make a nice table, build your (probably 5V battery) explaining how the table helped you choose what kind to build, make a pretty picture displaying the chemistry involved and badda bing...you are done
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That's a great idea. I don't have a working camera so I can't take pictures of the process to show you guys...