If you seen the videos, you know there were three updated videos on the joule thief unity recharger. Where I ran a joule thief on two batteries in series while at the same time recharging two batteries in parallel. That ran two weeks and I swapped the main batteries with the recharged batteries then. Just to see how long it all can repeat the process. I swapped the batteries when the light went out on 3/14/2015. So its been running off of its own recharged batteries since then. Today's date as of writing this is 3/18/2015. I have no idea how long it will run, or if it will go a full two weeks again, most likely not given the wires are not super conductive or superconductors so there is some energy loss because of that. But even running this long off of its own self recharged batteries is fairly interesting. So thats the text update on the over unity joule thief. If you haven't seen the last video of this which was part3 its at https://www.youtube.com/watch?v=3bVzI58k-Dk (https://www.youtube.com/watch?v=3bVzI58k-Dk)
Absent measurement of the power drawn from the batteries and the power delivered to the LED, there is not a lot to conclude. Logic suggests that you would get more total energy into your LED if you just discharged your batteries into a high efficiency power converter for the LED. By my recokoning it's not too difficult to get a good white LED to burn pretty brightly for at least six weeks from a pair of ordinary AA NiMH cells and a fairly simple power converter using off the shelf parts. There are white LEDs around that range from OK to stellar.
Quote from: stevensrd1 on March 18, 2015, 10:21:12 AM
If you seen the videos, you know there were three updated videos on the joule thief unity recharger. Where I ran a joule thief on two batteries in series while at the same time recharging two batteries in parallel. That ran two weeks and I swapped the main batteries with the recharged batteries then. Just to see how long it all can repeat the process. I swapped the batteries when the light went out on 3/14/2015. So its been running off of its own recharged batteries since then. Today's date as of writing this is 3/18/2015. I have no idea how long it will run, or if it will go a full two weeks again, most likely not given the wires are not super conductive or superconductors so there is some energy loss because of that. But even running this long off of its own self recharged batteries is fairly interesting. So thats the text update on the over unity joule thief. If you haven't seen the last video of this which was part3 its at https://www.youtube.com/watch?v=3bVzI58k-Dk (https://www.youtube.com/watch?v=3bVzI58k-Dk)
Good work! Hands on work is always good.
But why do you open a new topic for every move you make on the same subject?
Quote from: Cherryman on March 18, 2015, 11:17:05 AM
But why do you open a new topic for every move you make on the same subject?
Hi Cherryman. Not only is stevensrd1 opening a new topic for every new paragraph that he wants to write,
he is also repeating the same information in multiple new topics as well. Stevensrd1 is also ignoring people's comments/questions
on his posts as well. This guy is basically spam carpet bombing the forums here with his stuff, apparently as advertising
for his personal crowd funding campaign. ;)
All the best...