This forum is preserved as a permanent archive. The community continues at eMedia Press.

Announcement

Collapse
No announcement yet.

Captret - Perpetual Light with Dead Batteries

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • ibpointless2
    replied
    Originally posted by skaght View Post
    Has anyone gotten the water captret to light an LED without a battery? I'm not getting near enough current out of any of the designs for that.

    And I forgot to mention on my water captret design where the plates were getting eaten, I did add table salt to improve conductivity. I've stopped using salt at this point.

    You can try baking soda to increase water captret output, just use it as a battery and don't connect a battery to it.

    I'm going to try to light a LED soon, i've got to go get more alligator clips because all of mine are being used.

    Leave a comment:


  • skaght
    replied
    Has anyone gotten the water captret to light an LED without a battery? I'm not getting near enough current out of any of the designs for that.

    And I forgot to mention on my water captret design where the plates were getting eaten, I did add table salt to improve conductivity. I've stopped using salt at this point.

    Leave a comment:


  • ibpointless2
    replied
    Originally posted by gravityblock View Post
    You want the aluminum on the outside to be submerged into water. I'll draw a picture for you later.

    GB

    I don't use aluminum on the outside anymore, that was version one. I've gone to a much simpler design where the outside piece is not needed. Here's a video on how i make it. YouTube - How to make a Water Captret Battery.MP4

    Leave a comment:


  • gravityblock
    replied
    Originally posted by ibpointless2 View Post
    Please draw a picture. Do i take the whole cup and put into water or do you want me to add water to the cup?
    You want the aluminum on the outside to be submerged into water. I'll draw a picture for you later.

    GB

    Leave a comment:


  • gravityblock
    replied
    Originally posted by ibpointless2 View Post
    Or what about the fact that it produces more amps over time when given a load.
    What if the internal resistance is rising over time when given a load? A point will be reached where it won't deliver any amps, or will deliver less amps over time. 12V * 0A = 0 watts. 12V / infinite resistance = 0 amps.

    GB
    Last edited by gravityblock; 01-02-2011, 06:19 PM.

    Leave a comment:


  • ibpointless2
    replied
    Come to think about it the water captret battery would make a great emergency light. Its cheap, you can make it at home, and can supply light for a long period of time. You can keep it in your basement and when the lights go out you can un short it and hook up a bunch of LED's.

    Or if you make a big enough water captret you could supply power to light up your whole house.

    Leave a comment:


  • ibpointless2
    replied
    Originally posted by gravityblock View Post
    Even with a dead short, there is an internal resistance which needs to be taken into account. Have you measured this internal resistance? I assume it will be very high, thus it will deliver very low amps with a dead short and take a long time before anything is consumed.

    GB

    Is that a bad thing? Hook enough water captret batteries up and have them run a bunch of LED's for a long time? The LED's could run for years if tune correctly. What if the aluminium being consumed was so small that the water captret battery out lived me, would that be a bad thing, Light for my whole life time?
    What if the aluminium would never be consumed? Or what about the fact that it produces more amps over time when given a load.

    Leave a comment:


  • gravityblock
    replied
    Originally posted by ibpointless2 View Post
    But i dead short out others, there should be something decaying. A normal water battery would show rust and dirty water after at least a week. Plus the .000008 amps are going up over time, it started out at .000004 amps, What battery do you know that would do that when given a load?
    Even with a dead short, there is an internal resistance which needs to be taken into account. Have you measured this internal resistance? I assume it will be very high, thus it will deliver very low amps with a dead short and take a long time before anything is consumed.

    GB
    Last edited by gravityblock; 01-02-2011, 05:58 PM.

    Leave a comment:


  • ibpointless2
    replied
    Originally posted by gravityblock View Post
    Because there is very little amps. It will take a very long time to see the aluminum start to be consumed at 0.000008A.

    GB
    But i dead short out others, there should be something decaying. A normal water battery would show rust and dirty water after at least a week. Plus the .000008 amps are going up over time, it started out at .000004 amps, What battery do you know that would do that when given a load?

    Leave a comment:


  • gravityblock
    replied
    Originally posted by ibpointless2 View Post
    The question that i would like answered is why is nothing be consumed in this water captret battery?
    Because there is very little amps. It will take a very long time to see the aluminum start to be consumed at 0.000008A. This doesn't even take into account the internal resistance.

    GB
    Last edited by gravityblock; 01-02-2011, 05:44 PM.

    Leave a comment:


  • ibpointless2
    replied
    Originally posted by gravityblock View Post
    Take the captret and dip it into a bowl of water and see if the voltage decreases. This test can be done with or without the baking soda added to the bowl of water. There will be less air available to the outside of the aluminum can the further the captret is dipped into the bowl of water. If the voltage decreases as it is dipped into the bowl of water, then the captret is acting like an aluminum-air battery. Do I need to draw a picture?

    GB
    Please draw a picture. Do i take the whole cup and put into water or do you want me to add water to the cup?

    Leave a comment:


  • ibpointless2
    replied
    Originally posted by Jbignes5 View Post
    Yeah try to stay away from antifreeze. We don't want a capacitor here. We want a battery that is essentially free except for the cost of water.

    As for the plate size you mentioned this is the key. The thick one will always be the negative and the thin one will always be the positive. This is the key. Surface area between the two plates is way different. The thick one has little surface area and the thin one has tons more. This is why I mentioned the aluminum foam earlier. The negative plate will be solid aluminum and the positive will be the metal foam. We need to balance the weight of the plates but only change the surface area that is present in that medium. Of course this means that the battery will be larger but with aluminum the weght will be low except for the water weight. We can stack the negative and positive plates or even house the whole battery in the aluminum negative and have enough foam in the battery to give it a greater surface area and still match the mass of the surrounding battery case. We could also create cells and connect them via buss bars to multiply the voltage or current capability of the entire battery.


    You're right we should stay away from antifreeze but i do find that simply by changing the liquid you can either make a capacitor or battery and since the anitfreeze gives off a little power like a battery i think this might be the reason people see self charging in their captrets circuits. The Captret or really any capacitor is a free energy battery, but its just not fully tune to be a battery. Water works really great and it seems like the water captret will run forever due to the fact the plates don't get destroyed and the fact that they work better when given a load. What battery does anyone know that outputs more power over time when given a load? amazing

    The foam idea sounds great but also expensive. I don't know where to get this foam at? With my current design i can add multiple negative plates and connect them up and each have there own voltage and each can charge there own capacitors.

    The question that i would like answered is why is nothing be consumed in this water captret battery?

    Leave a comment:


  • gravityblock
    replied
    Take the captret and dip it into a bowl of water and see if the voltage decreases. This test can be done with or without the baking soda added to the bowl of water. There will be less air available to the outside of the aluminum can the further the captret is dipped into the bowl of water. If the voltage decreases as it is dipped into the bowl of water, then the captret is acting like an aluminum-air battery. Do I need to draw a picture?

    GB

    Leave a comment:


  • Jbignes5
    replied
    Originally posted by ibpointless2 View Post
    I've tried using car antifreeze 50/50 for use in the water captret. The antifreeze contains much the same electrolyte as a normal capacitor does. By it self the water captret with antifreeze produces very little voltage (8 mV). Hooking a battery up to it and it holds a charge much like a capacitor. This must be what that guy "electricity" was talking about in earlier post. Its funny that the antifreeze makes the water captret a capacitor and Water makes it a battery.

    I'm going look into electricity's claims that this big capacitor could charge batteries. After all this water captret is just a big capacitor when you use antifreeze instead of water.


    As for plate size i've found that thin is usually positive and thick is usually negative. so the thickness determines the polarity of the plate.

    Yeah try to stay away from antifreeze. We don't want a capacitor here. We want a battery that is essentially free except for the cost of water.

    As for the plate size you mentioned this is the key. The thick one will always be the negative and the thin one will always be the positive. This is the key. Surface area between the two plates is way different. The thick one has little surface area and the thin one has tons more. This is why I mentioned the aluminum foam earlier. The negative plate will be solid aluminum and the positive will be the metal foam. We need to balance the weight of the plates but only change the surface area that is present in that medium. Of course this means that the battery will be larger but with aluminum the weght will be low except for the water weight. We can stack the negative and positive plates or even house the whole battery in the aluminum negative and have enough foam in the battery to give it a greater surface area and still match the mass of the surrounding battery case. We could also create cells and connect them via buss bars to multiply the voltage or current capability of the entire battery.

    Leave a comment:


  • ibpointless2
    replied
    I've tried using car antifreeze 50/50 for use in the water captret. The antifreeze contains much the same electrolyte as a normal capacitor does. By it self the water captret with antifreeze produces very little voltage (8 mV). Hooking a battery up to it and it holds a charge much like a capacitor. This must be what that guy "electricity" was talking about in earlier post. Its funny that the antifreeze makes the water captret a capacitor and Water makes it a battery.

    I'm going look into electricity's claims that this big capacitor could charge batteries. After all this water captret is just a big capacitor when you use antifreeze instead of water.


    As for plate size i've found that thin is usually positive and thick is usually negative. so the thickness determines the polarity of the plate.

    Leave a comment:

Working...
X