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Freecharge Windup Mobile Phone Power Source

Harry Morgan writes: "The UK's Guardian newspaper has an interesting article in it's Online Supplement concerning Freeplay's handheld, windup mobile phone power supply the Freecharge. Although larger and heavier than several spare batteries, it has two distinct advantages over the former, you don't have to turn the phone off to connect it and it will never go flat a long as your arms work!"

46 of 151 comments (clear)

  1. Windup.... by Throatwarbler+Mangro · · Score: 2, Funny

    Back in the early days of telephones, one had to turn a handcrank to get an operator... Then they were replaced with rotary dials... still crankin' but quicker than waiting for personal service. Then touch tone came along.. no more cranking! And now we have this... Ahhh, we've come so far... dan(crank calling)

  2. Sounds like great fun by Perianwyr+Stormcrow · · Score: 2

    Very Viridian. It certainly seems like a lifesaver.

    Now, if only I could jack it up to my PDA and give it that last few seconds of oomph it needs to grab a critical number...

    --

    What we call folk wisdom is often no more than a kind of expedient stupidity.-Edward Abbey

  3. Never go flat by handsomepete · · Score: 5, Funny

    and it will never go flat a long as your arms work!

    a heavy-hearted sigh is heard from the collective armless community of the world

    1. Re:Never go flat by Throatwarbler+Mangro · · Score: 2, Funny

      Not to mention the serious crimp this will place in long-distance disarmament talks.

    2. Re:Never go flat by phutureboy · · Score: 3

      and it will never go flat a long as your arms work!

      Hehe. Sadly, that's the story of my life.

    3. Re:Never go flat by Anonymous Coward · · Score: 2, Funny

      a heavy-hearted sigh is heard from the collective armless community of the world

      Fear not, soon someone will develop a hands-free version.

    4. Re:Never go flat by SiliconEntity · · Score: 2
      and it will never go flat a long as your arms work!

      Actually, I have a Freeplay radio, and while it works pretty well - you wind it up and then it plays for up to 30 minutes - it has one problem. While you're actually winding it there is no charging to the batteries and they die. Once you finish winding, which takes half a minute or so, then it starts generating power again and the radio works.

      So if the cell phone charger works like this, then it will "go flat" occasionally, until you can wind it up again.

  4. pre-emptive slashdotting? by CheechBG · · Score: 3, Interesting

    nice, the host yanked the DNS link before even 5 comments were posted :)

    now that's what I call saving bandwidth (and also whoring out the hosting provider's info too) :)

  5. ... Why Windup? by Eddy+Johnson · · Score: 5, Funny

    Rather than constantly cranking your phone to get power (rather like that really annoying flashlight), why not make a round phone and rather than crank it, have an internal crack attached to a string - the Yo-Yo Phone!

    Play with it for a while, make a few calls, and play again to recharge.

    And if you can do a sleeper for more than five minutes, you get a discount on your monthly phone bill. "Walking the dog" with it will gain you bonus minutes as well.

    --


    Anonymous Coward: (n.) 1. nerd at school or library. 2. karmawhore in training. 3. embarrased prep.
  6. This is awesome. by SirSlud · · Score: 2

    You know, renewable resources aside, if you imagine the amount of energy humans consume daily from physical work, and the amount of work it _should_ take (given 100% efficiency) to power these small devices, human effort is truely the ultimate renewable resource. I can't even imagine the efficiency, cost and energy savings of using human effort to offload the power requirements for small devices like this. Think of the energy, no only to produce, but to store, ship, sell, package, etc, batteries for small devices. Gone, hopefully, if this type of technology gains a foot hold (or arm hold, pardon the pun.)

    --
    "Old man yells at systemd"
    1. Re:This is awesome. by eugene+ts+wong · · Score: 3, Interesting
      I've always hoped they could somehow turn health clubs into some sort of mini power station. All that energy being spent on absolutely nothing.
      That's an amazing idea. I've never even thought of that. So simple, yet brilliant. I'm not trying to suck up or anything. It's just that the only thing that I've seen as being a hinderance to all of this is that one person turning a generator wouldn't produce enough for him to make it very practical, once you factor in the costs of electricity [from competing sources] and the hardware. However the costs really become reduced once you reuse the hardware, it would really make a difference. I wonder where we could get this ball rolling.
      I suppose the energy created is probably nothing compared to that the the club's AC units are putting out, though. The "green" health club would have to have no AC I guess.
      True, but certainly the technology is out there to convert back and forth. Who knows? Maybe if enough people begin to use Stair Masters, then there will be a AC generators.
      PS. Are exercise bikes (the ones with digital stats) powered by wall AC? It seems like they should at least make these human powered, if they're not already.
      I don't know for sure, but searching through google for exercise bikes should turn up a few companies that would give a few specs. It would probably be best to wait to find out later on. I think that it would be wise to see who would be willing to try a new idea.

      I'm so interested in this that I'm tempted to present the idea to a few companies to see how well it is received.

      One idea, might be to generate enough electricity to turn fans to cool entire buildings. I don't see any problems with this, *if* there are enough people. At Expo 86, they put out a bunch of exercise bikes and people just came up there to ride them to see if they could get all of the lights to light up. As more electricity was generated, the next light would light up, till you reached the top. Perhaps apartment buildings could convert a basement room for this type of thing. People may be willing to cycle more if their own apartments were being cooled off.
    2. Re:This is awesome. by eugene+ts+wong · · Score: 2
      ...the human powered ones bugged me. You had to do a couple steps (pedals) then the display would lite up so you could select things. The other ones never used much power as I recall (mostly LEDs and the such)...
      I'm glad that you brought this up. In a room where there is plenty of light, perhaps they could have solar panels to get the electronics working, like a calculater, and perhaps enough to store a few settings, and what have you. Once you get going on the bike, then you'll get all of the pretty colored lights working. This way, each source of electricity will do what it does best. Solar will keep it running to a minimal degree, and our cycling will keep it working to a larger degree.

      Maybe just for a laugh, they could have some kind of electronic game to amuse us while we cycle. For example the faster you peddle, the faster your "car" runs through the course. Remember those days of electronic versions of games like Space Invaders or Pacman? Well if you could make a Pole Position version, using LEDs, then you might have something. I truely believe that the possibilities are endless. Perhaps even a simple radio. Each person brings his own headphones, or rents them.
      ...but that's just my 2cents.
      Well, it's more like $2 to me, because this information about your tastes and preferences are important. The way I see it, this is all a marketing and economical issue.
    3. Re:This is awesome. by Bald+Wookie · · Score: 2

      I'm too tired to do this longhand, but here is a rough upper bound:

      Our assumptions:

      2000 Calorie diet
      Every Calorie is converted to electrical energy at 100% efficiency

      2000 Calories = 2000000 calories (we eat kilocalories)

      Play with conversions here:

      http://www.export911.com/convert/conFac-J.htm
      h ttp://www.export911.com/convert/conFac-J.htm

      Some magic happens and those 2000 Calories give us 2000 odd Watt hours. Well, really 2324 watt hours. Life isn't always big round numbers.

      Disclaimer: I'm not sure about the second conversion to watt-hours. I trusted the computer to do the right thing. Feel free to fix it if this all turned out wrong.

      Our bogus assumptions lead us to the maximum output. What does our back of the envelope calculation really mean? Lets do some more bad math:

      We'll call it 2400 total Watt hours
      You said 8 hours, so we divide by 8
      Our man only really makes 300 Watts in an hour

      300 Watts? Don't spend it all in one place. Here are some potential uses:
      A desktop computer without the monitor (maybe)
      Three, count them, three 100 watt light bulbs
      A small swamp cooler
      Probably a small TV

      Throw in the bothersome laws of thermodynamics and you won't even get that. Lets put it this way, if it runs on Duracells, you could probably power it without killing yourself. Incidentially, that brings back to the topic of the article.

      There is a reason China isn't exporting power. It isn't a lack of people or bicycles.

    4. Re:This is awesome. by tburkhol · · Score: 2, Informative
      If a BigMac is 570 calories, dietary calories are 1000 thermodynamic calories, so at 100% efficiency, the burger is worth about 2400 kJ.

      FreeCharge claims their battery will hold 1 Amp-hour at 3.6 volts. That's about 13 kJ, so at 100% efficiency, you could get 180 full-charges out of 1 burger.

      Of course, muscles are only about 50% efficient, and require a whole lot of support energy-digestion, respiration, circulation, but let's imagine You are 30% efficient. You're down to 55 charges/BigMac.

      Wind-up cranks are notoriously inefficient. Let's call it 30% too, which is probably generous. Down to 17 charges/BigMac. $0.17 per charge

      Here in Atlanta, residential electricity is $0.044/kWh, and 1 kWh = 3600 kJ or 280 cell-phone charges. If we imagine the plug-in adapter is 80% efficient, you can knock that down to 220, but you're still looking at $0.0002 per charge.

      Don't forget, your Big Mac generates greenhouse gasses (CO2), and actually a lot more, because of your poor efficency.

    5. Re:This is awesome. by MConlon · · Score: 2, Informative
      [re: Air con]

      Yes, agreed. It would be interesting to have a cooling system completely powered by humans and mechanical energy. I see problems with that, but I'm sure that there might be ways to work around it. Maybe we could pump water to pull the fan? I hate to see this turn really complex.

      The main problem being that humans generate heat while doing work...

      On a slightly unrelated note, I wonder how many kilowatt hours a single "average" male could generate in a 8 hour work day with the most efficient mechanical system.

      Less than 1.6kwh. Not very impressive, is it? We can generate around 200W when we're going at a good (and sustainable) clip. Unfortunately we can't run at that level for 8 hours straight... closer to two hours.

      MJC.

    6. Re:This is awesome. by eugene+ts+wong · · Score: 2
      I'm too tired to do this longhand, but here is a rough upper bound:
      Hey thanks for your time. I wouldn't know how correct you are without verifying the information. I could do that later. Whether or not you are correct, I appreciate the effort that you graciously took to answer my question. I know that at times I can be very tired and don't feel posting at /.
      300 Watts? Don't spend it all in one place.
      LOL. [I actually did laugh out loud! :^) ]
      Throw in the bothersome laws of thermodynamics and you won't even get that. Lets put it this way, if it runs on Duracells, you could probably power it without killing yourself.
      Hmm, too bad. That's the problem with science. It puts a wet blankets on our dreams and ambitions. There goes my plan to power New York with one guy riding a bike! ;^) Seriously, the good thing about science and other similar studies is that it can give us a balanced view and direction.

      I really appeciate your comments. Perhaps there will be a market for "Charge your cell phone while you work out!" types of marketing? Not necessarily for the environmental aspect. That would be frosting on the cake. More for the convenience of having your cell phone charged more often, if you work out once a day.

      We'll have to let economics have its way to see how things will turn out.
    7. Re:This is awesome. by eugene+ts+wong · · Score: 2

      [snip: description of a Paper Boy game]

      LOL! I love this!

  7. Re:Uh. by Fastball · · Score: 2
    When will the US get their act together and stop relying on those massive bricks?

    You Euros and your cell-phone envy...

  8. Good link for freeplay... by bmooney28 · · Score: 2, Informative

    While clicking "freeplay" yields a bad link, This Link should bring you to a good review of this service...

  9. Limited market by Qwerpafw · · Score: 2, Insightful

    I have always looked at windup-power sources as having a very limited market.

    The thing is, batteries are just fine for most people. The only situations where batteries are not good enough would be :

    a) when its in storage for such a long time, the battery might die (and this really almost doesn't apply to most modern batteries)
    b) when you need so many batterys worth of charge, and its just not feasible to buy more (like hiking, being on a boat, etc)
    c) when you absolutely need reliability, and if you use a battery, it could die, and then you would be fscked for some reason or another (again, like camping...)

    So it seems to me the only people who would want this sort of thing are people using it in very remote areas, or disaster survivalists.

    And here's the problem with those markets. Cell phones are inherently based on having a lot of neaarby infrastructure. You need an operating phone network, an operating nearby tower, and so on and so forth. And when you are in a remote are, those things often just aren't going to be available. The same applies to a nuclear holocaust sort of situation.

    See, the success of the freeplay radios and flashlights has been basically because, though they are bulkier and less convinient, they allow for a great deal of freedom. You don't need to have batteries, you don't need infrastructure around you, etc.

    And cell phones definately are not "free" in any sense of the word. chances are, anywhere where a cell phone would work, you can find a place to rechange your batteries. So this is an almost paradoxical product. I have a fair degree of difficulty in thinking up any situation where this would be useful. and finally, unlike the flashlight (which, by the way, I own), you would not be able to stop whatever you are doing, recharge, and start again, due to the nature of cell phone calls.

    So, aside from the "coolness" factor (which is pretty nifty ;), I can't really see a market for this.

  10. Google cache... by ryanvm · · Score: 2

    Haha - fear my l33t karma-whoring skillz.

    Since the site's down, here is the Google cached copy.

  11. Re:Is this really the solution? by SirSlud · · Score: 2

    Unfortunately, history is a good example of why problems like this are usually cancerous in nature, and require a violent, unjustifiable (and yet completely justifiable, at a macroscopic level) response.

    I 100% agree with you, but please make reference to a culture/society in the past that has successfully curbed its own problems when the downside of those problems were not felt by them? I dont think its happened much.

    Nevermind that our entire economic system is geared towards consumption. Its hard to turn an entire nation or three into martyrs.

    --
    "Old man yells at systemd"
  12. Shoe model must have gone bust... by wherley · · Score: 2, Informative

    Trevor Baylis, idea man behind the Freeplay radio, had previously been working on the Electric shoe charger. But that domain and light searching reveal no sign of its fruition. This story mentions the shoe model charging a mobile device like a phone.
    Here is the BBC story on the wind up model from July 2001.
    Here is the Wired story from January of this year.

  13. This is a bad idea... by vspazv · · Score: 2, Funny

    People with normal cell phones in cars are bad enough but now they have to concentrate on winding the phone up too?

    Yet another reason not to go outside.

  14. Re:Is this really the solution? by eugene+ts+wong · · Score: 2
    We must reduce consumption.
    I agree. I think that this battery is good in that in can reduce the amount of electricity *consumed* by other sources. I don't have to plug it in anymore and use up electricity created by hydro dams, and coal burning plants.

    This won't catch on for a lot of people, but if we want to do it in an economical way, we should let it get out onto the market first to be sold to those who could use it now. I could use it. I ride transit, so sitting there cranking a phone won't be a problem for me. It's only a matter of how much the phone costs compared to other batteries.

    Hopefully, this begins to catch on, and once it does, it can be sold in the form of a stress reliever or whatever the marketers can come up with.

    But first, try to sell it to the campers who like to take their ham radios out with them.

    Another helpful thing would be to get the battery manufactorers to standardize on their batteries, so that one adapter can be used for many phones. Then the adaptors can be sold seperately. Only one adapter is really needed per house hold.
  15. Kinetic Charger by Anonymous Coward · · Score: 2, Interesting

    I have a watch that uses the kinetic energy from arm movement to keep itself ticking along (ie you shake it every now and then). Why can't they put something like that in a phone? Most poeple carry their phone with them all day, so they could be using it to charge the battery as they walk.

  16. The Third Worlds Problems are largely political by hagbard5235 · · Score: 2
    Most of the problems of the developing world are politcal, not economic. Scratch a poor third world nation that is suffering from starvation, and you will generally find a despotic ruling regime, not a transnational corporation enslaving the people.

    This is NOT to say that there are not nasty transnational corporations doing bad things, but for the most part in most places where large numbers of people are facing starvation today it is due to their despotic rulers.

    Examples:

    Zimbabwe, formerly a breadbasket country, is facing famine in large part do to Mugabe's disastrous land use policies.

    North Korea, suffering famine recently ( although I haven't checked the status lately ) due largely to the mismanagement of their communist government.

    If you really want to know who is oppressing the people of the third world, look not to the developed world and it's consuption, but rather to the pointless excesses of the rulers of the third world.

    1. Re:The Third Worlds Problems are largely political by Ralph+Bearpark · · Score: 2
      Scratch a poor third world nation that is suffering from starvation, and you will generally find a despotic ruling regime, not a transnational corporation enslaving the people.

      Actually, the standard operating procedure is that the despotic ruling regime enslaving the people is supported by the World Bank, the IMF and a selection of transnational corpororations (who just happen to plunder the natural and human resources).

      See John Pilger's The New Rulers of the World for more information.

      Regards, Ralph.

  17. better workout by Cyberop5 · · Score: 5, Funny

    there are more fun ways to excersize an arm while on the fone with your girlfriend...



    .. like curling weights

    --
    Urgo: "I want to live. I want to experience the universe and I want to eat pie!"
    Jack: "Who doesn't??"
  18. What an energy saver... by NanoGator · · Score: 2

    "...it will never go flat a long as your arms work!"

    Does this mean that porn could be considered a perpetual motion device?

    --
    "Derp de derp."
  19. working URL by marhar · · Score: 2

    The URL doesn't work... you can see it here

  20. Windup linux by ukryule · · Score: 3, Interesting

    This reminded me of the the windup Linux Webserver.

    So now, all you need to do is connect the phone up to the webserver to provide the network connection, and you have a fully mobile, fully human powered solution.

  21. And Phone Sex by RebelTycoon · · Score: 2, Funny

    Just became that much more difficult...
    (must extend text not to be penalized for one liner)
    (mod me down if its not funny...)
    I'm a virgin.. Who will give me my first karma point?

  22. Important! by newerbob · · Score: 2
    If you want to be taken seriously as an editor or writer, it's important to know that:

    "it's" means it is

    and

    "its" is the possessive.

    Slashdot's editors make this mistake often. That may have been fine in 1999 where dumb kids had huge valuations, but it doesn't fly in this decade.

    --

    --
    Ask the Ya-Hoot Oracle Anything!
  23. Re:Is this really the solution? by eugene+ts+wong · · Score: 2
    And so, what about those of us who get on an electric powered treadmill...
    I don't know, because I'm not one of you. I don't do that kind of stuff. If I want to exercise, I'd go for a walk or do push ups. The technology that I speak of is only for those of us/you who produce motion with non-electrical devices. If your treadmill uses electricity, I'd never recommend that you try to get energy out of it, unless it actually helped to save electricity in total. Of course.

    The tread mill is probably the worse case scenario, however.
    and then needing to shower
    I don't shower till before bed time, so I wouldn't need to shower more than once. As it is, I turn off the water when I put on soap or lather my head, so I hardly think that anyone should be lecturing me on water consumption. However, you have a valid point. My ideas are only for people who work out already. I wouldn't go out of by way to get people to exercise more just for the sake of "generating electricity".
    drink more water
    Drinking water can only be a good thing, even if it is only perspired out. It's important to cleanse our systems.
    I'm sure you can supply us with at least 200-300 words of social commentary on that.
    Why would anybody need to do that? If it saves money, energy and time, *and* people *will* use the idea [without being forced], then what is the problem? I'm only suggesting an idea, not finding a way to force anybody to do anything.
  24. Eh. by TheSHAD0W · · Score: 3, Insightful

    At first, I thought this would be a great idea for an emergency cell phone. Leave it in your car, and if you break down or get in an accident, just a little winding and you can call for help. No worries about batteries dying.

    Then I realized that if you got in an accident, you might not be ABLE to wind the thing. A phone meant for real emergencies would need to be operable without having to wind it up first.

    I'd recommend using one of those battery packs that takes AA cells, then filling it with Eveready's Energizer Lithium AAs. Not only would they give a long talk time, they also have an incredible shelf life. Ideal for emergency use.

    1. Re:Eh. by matthew.thompson · · Score: 3, Informative

      Trevor Bayliss, the inventor of the original Windup Radio, sprung (pun intended) upon the human power idea whilst listening to or watching a programme about how the developing world was trying to spread information regarding HIV and AIDS by radio but that batteries were prohibitively expensive.

      Freeplay was set up to provide these radios to the developing countries at a cost they could afford - partially subsidised by the sale of the devices in the developed world.

      It is more likely that instead of this device being designed directly for the likes of you and me it has been designed for the places where mobile telephony is about the only form of telephone available and where electricity is likely to be in short supply or intermittently available.

      That we can buy the devices is probably a way to subsidise the sale of them in much the same way as the radios.

      --
      Matt Thompson - Actuality - Insert product here.
  25. Re:Is this really the solution? by canadian_right · · Score: 2
    Your solution is a bit extreme.

    Simply cutting back and not buying every single gadget produced would help. There are people who are devoted to living "more simply" who advocate giving up some 'luxuries', slowing the influx of 'junk' into your life and making other adjustments. See Live simple for more information.

    --
    Anarchists never rule
  26. Yeah... by gvonk · · Score: 2

    I suppose that this guy, who slept on his arms last night, will have a bit of a problem.

    Ah, yes... Kids in the Hall... I miss you.

    --


    El Karma: excelente(principalmente la suma de moderación hecha a los comentarios de los usuarios)
  27. A squeeking pet toy would work better by pinkpineapple · · Score: 2

    I'd love to see that happening to use with my PDA. Squeezing the toy would roduces electricity by recycling the wind going thru the whistle using a tiny dynamo. A recharging battery would be located in the toy. The gesture would feel more natural I think. Squeak it! ;-)

    PPA, the girl next door.

    --
    -- I feel better now. Thanks for asking.
  28. Re:Is this really the solution? by alizard · · Score: 2
    And what kind of environmentally friendly ways are you using to compose your replies or post them?

    I've been reading your kind of environmental elitism preaching about how the rest of us need to sacrifice for years.

    Presumably you think "your message" is important enough to exempt you from the reduction of consumption the rest of us "need".

    You might find it interesting to track down the origin of your message... who funded the studies that are used as the basis of your advice. Who funded the "deep ecology" agenda?

    You will be surprised and not plesantly.

  29. Didja check those URLs? by Simon+Brooke · · Score: 2
    --
    I'm old enough to remember when discussions on Slashdot were well informed.
  30. On the subject of FreeCharge in cars... by Andy+Dodd · · Score: 2

    Unless someone has forgotten their car charger (Unlikely - My car charger is often the one thing I remember, as it's always in my car), there is no need for the FreeCharge.

    The FreeCharge is good for those who will be going where there is no power - Like on camping trips. Businesspeople don't need it - They can bring their "brick" wall charger and plug it in at the hotel.

    --
    retrorocket.o not found, launch anyway?
  31. economic growth by DABANSHEE · · Score: 2

    is the philosophy of a cancer cell

  32. Re:Now all we need is solar cell towers by Knobby · · Score: 2

    I'd pay $10 more per month for a cell system that worked that way.

    Why? If the telecom can install a tower in east bumf*%k with having to run power to it, they could probably cover the costs of adding the solar cell and possibly a wind turbine.. This should cost you less, not more..

  33. Conservation of energy by ecloud · · Score: 2

    I think if you extract some rotational energy from a yo-yo to charge a battery, it'll be a lousy yo-yo... just sort of drop and then not have enough momentum to come back up again.