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Student Entrepreneur shakes to charge

Simon Barker
7/30/2010 01:40 PM EDT

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Salio
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re: Student Entrepreneur shakes to charge
Salio   9/3/2010 4:15:12 AM
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I think it is a really neat idea to charge batteries with a few shakes. I agree that price does become an issue with things like this. However, I don't think if I agree that rechargeable batteries aren't whole lot better than one single use batteries. The rechargeable batteries eventually die too but at least they aren't replaced as often as single use batteries. If most people start using rechargeable batteries, this will result in less and less batteries being discarded. When we think about something as little as using rechargable batteries in a country like India, where there are 1 billion people, they make a huge impact.

SimonAtEHSense
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re: Student Entrepreneur shakes to charge
SimonAtEHSense   8/8/2010 12:04:19 PM
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Hi Kiran, The lads in the office periodically bring up the treadmill in the gym topic. I have a suspicion that it is being developed somewhere, but I maybe wrong. Similar to that though is the night club in Denmark (I think) with a piezoelectric dance floor. It seems that they can generate quite a lot of power to supply parts of the lighting system. I guess this is all part of a potential shift away from centralised power generation.

elctrnx_lyf
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re: Student Entrepreneur shakes to charge
elctrnx_lyf   8/2/2010 4:31:56 PM
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I accept with pixies and feel that there is something big that is not explored in the area of energy transformation. Lets imagine if we have an inverter which could be charged by connecting treadmill or any other cardio working out machines. Probably all the gym owners will be jumping to buy these products. Enough power will be generated by the customers itself. Any owners out there want to invest on this one!!!

DrQuine
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re: Student Entrepreneur shakes to charge
DrQuine   8/2/2010 2:04:29 PM
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I believe that size (and cost) are the critical elements. If a device can be designed to get by with less power then the footprint will be reduced by migrating the battery from D to C to AA to AAA to a button battery. For "shake to charge" to be practical, the shake power component needs to be smaller than the backup (e.g. lithium button) battery that would have otherwise been provided. One exception (which also creates marketing buzz) is rarely used emergency devices in remote locations - such as the Red Cross emergency radios which are available with a hand powered option. Finally, rechargeable batteries typically have a poor life expectancy; the rarely used "shake to recharge" feature may fail because the battery can no longer hold a charge. Where footprint is available, solar cells are an alternative energy harvesting technology that provide electric power directly. (Of course, "shake to wind" watch bypass battery problems by using mechanical energy to wind a mechanical spring.)

yalanand
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re: Student Entrepreneur shakes to charge
yalanand   8/1/2010 5:23:12 PM
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I dont think it will be too long before we will have feasible solution. Looking at the way Nano technology is unwinding its potential its just a matter of time rather than antyhing else.

MikeLC
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re: Student Entrepreneur shakes to charge
MikeLC   8/1/2010 5:32:17 AM
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Well, the shake to wind watches were pretty popular, so why not!

eewiz
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re: Student Entrepreneur shakes to charge
eewiz   7/31/2010 9:08:36 PM
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Shake to charge batteries are indeed a great idea. If they can incorporate a normal rechargeable battery along with shake to recharge, it could be used for high volume applications also. For eg. How many times, a cell phone had died on us, when we need to make an urgent voice call. If we can shake the phone for 2 mins, and use the phone for another 3 mins, wouldnt it be nice?

Peter Clarke
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re: Student Entrepreneur shakes to charge
Peter Clarke   7/31/2010 12:22:55 PM
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I also expect the total available market for this device, those applications with a very low duty cycle such as remote controls, is relatively small. But I agree with Simon that people are becoming more away of the harmful and unsustainable nature of batteries.

pixies
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re: Student Entrepreneur shakes to charge
pixies   7/30/2010 2:44:56 PM
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I bet it is the cost that prohibit the commercialization, at least for now. Also I have always imagined a treadmill powered TV. It will save energy and keep people fit at the same time. Somebody should work on it. :)

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