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    Even Newer 4 to 24-cell Battery Management System (BMS)

    Hi fechter, thank you for your fast response. I connected the FET in the right way, (1 and 5 pins) so the only reason left is that I burned it during soldering. To test it I will connect the next FET with wires first (so no danger of burning it) to see if this is the case. Thomas
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    Even Newer 4 to 24-cell Battery Management System (BMS)

    Hi fechter and others, to keep the MOSFET cool, I tried to replace the original MOSFET by an IRF1324S type (VDss 24V, 1mOhm) in my 4 channel BMS. http://www.irf.com/product-info/datasheets/data/irf1324s-7ppbf.pdf. Now the main (bicolor) LED starts to light up if I just connect the battery...
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    Even Newer 4 to 24-cell Battery Management System (BMS)

    Hi fechter and other BMS builders, some posts ago, I wrote about the problem with the charging finishing to early. You were right that this is caused by the resistance of the wires and plugs between the BMS and the battery that cause a voltage drop of ~ 100mV @ 20A in the moment. This causes...
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    New 'Mini Monster' Programmable Controllers Coming

    Hi methods, thanks for your quick reply. However I think the factory shunt for the 18fet controller and the 6fet controller is different (at least the photo for the 18fet shows 2 silver "shunts", and my 6fet has only one). Maybe I also missed some pages in the 18FET thread. In theory the...
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    New 'Mini Monster' Programmable Controllers Coming

    I have a short question concerning the shunt in the 6FET controller I have a 0.5mOhm SMD shunt lying around. Could I use this shunt to replace the original one in the 206 controller or would it be to low ? How do I adapt the values for the Phase Current and rated current in the Designer program...
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    Even Newer 4 to 24-cell Battery Management System (BMS)

    Hi Fechter, thanks for your quick answer. I'm charging 4x50Ah LiFePo4 cells with a power supply than can give up to 20A. The cells were pretty out of balance in the beginning. What is the typical voltage tolerance for the shutoff.... (e.g. 3 cells are >= 3.65V, therefore the yellow LED's are...
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    Even Newer 4 to 24-cell Battery Management System (BMS)

    Hello, I build a 4 cell version of the BMS, presumably version 2.6, as the Mouser part list was the same as the one presently supplied on the tpacks page. (The supplied printed manual was 2.5 but some parts did not match my Mouser order and I therefore partly ignored the partlist of the 2.5...
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    is anyone making panels out of loose PV cells from ebay?

    I guess the best diode would be a Mosfet based diode replacement as there is nearly no loss using this technique. See http://www.endless-sphere.com/forums/viewtopic.php?f=14&t=10471 I'm currently building some to decouple the 32cell strings, and to avoid battery discharge.
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    Help, new 116 programer pinout.

    Just a short note that programming my EB206-A-2 works now fine. The problem was the USB-Adapter. After I changed the USB adapter it worked. Thomas
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    is anyone making panels out of loose PV cells from ebay?

    The cells need mechanical protection (they are like 0.2mm thick glass plates) as well as protection against corrosion. In dry conditions without any movements and any dust, you could also use them without protection. Thomas
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    Infineon 6 Fet

    yesterday I fitted an HXT 63-74 motor with SS40A hall sensors following the way Jeremy described in this forum (I milled out spaces in the slots, and put them with the flat side outwards in 120° distance). It works with the new 6 FET controller. The motor had troubles before starting with an...
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    converting an EB206 6FET controller to 12V

    Thank's Fechter and Jeremy. That sounds like a reasonably simple modification. :) Does anybody know the voltage tolerance of the 12V circuit ? Would it help to fit logic level MOSFETS to avoid problems with lower voltages (e.g. 9V) or do the Mosfet driver circuits also stop working ? Are the...
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    is anyone making panels out of loose PV cells from ebay?

    Hi Jeremy, I think the principle of pressure and heat, melting EVA is similar in both the solar, and the paper lamination process. But for the solar cells, the EVA is much thicker (>0.4mm) to cover the height differences between the cells, tabs etc.. The EVA is just embedding and does not...
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    is anyone making panels out of loose PV cells from ebay?

    The laminator uses a heating plate for melting the EVA, and vacuum for producing the mechanical pressure. Here is a schematic (unfortuanly german) where you can see the two vaccum cavities and the heating plate. I don't know the details, only that in my case, the lamination takes around...
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    is anyone making panels out of loose PV cells from ebay?

    I'm currently building panels out of loose cells. Including all the tries and errors, it is not cheaper than buying a panel, at least if you want to get a product that is efficient and durable for a long time. As I need very light modules for my solar boat I still tried to construct my own...
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    Infineon 6 Fet

    Hi Bubba, not sure if this helps, but here is a photo of my working 6FET board that has an LM317T soldered in. But I think we have slightly different versions of the board. Mine arrived two weeks ago and is named EB206-A-2 Best regards, Thomas
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    Help, new 116 programer pinout.

    Hi tron, Did you find the problem ? I'm having the same trouble in the moment with an EB206-A-2 board I just bought recently. Thank's Thomas
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    converting an EB206 6FET controller to 12V

    Hi, I would like to convert an 24V/250W crazyman controller EB206-A-2 (pics attached), to work with only 4 LiFePo cells. The reason for this is that I'm building a direct drive pod for a solar boat and only need low RPM (and I have only 4 50Ah LiFePo cells). The higher Ri losses I have in...
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