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  1. manfred59

    JP spot welder

    Yes that's the best I have seen! :) I have to make a new battery for my golf standup scooterhttps://endless-sphere.com/forums/viewtopic.php?f=7&t=3573 My A123 LiFePO4 cells have about 3000 cycles 8) Please put me on the list for 1 unit, thanks!
  2. manfred59

    controller falls into cruise mode

    I have found this in another post, it seems to be a feature of my controllers Is it possible to inactivate this feature?
  3. manfred59

    controller falls into cruise mode

    Hello, dear forum members! I have the following problem: On my golf project vehicle I have two motors with 2 controllers from the company Freego Power Company (9 MOSFET, 36V-9M-3600-1) in parallel on one throttle running. At full throttle the two motors are going automaticly into cruise mode...
  4. manfred59

    Speedict Ebike - Anybody seen/tried this?

    I have bought my speedict from Speedict Technology LTD. in Hong Kong and it was in use since 05/2011 and wanted to do a firmware upgrade, but this failed, now no firmware is installed. I also have tried to reinstall the last working firmware 2.0 but even this failed. :( Now, is it dead or what...
  5. manfred59

    16 Channel Celllog CMS/Balancer with MW Charge Controller

    Hi, I have problems with the connection of the Celllog CMS/Balancer rev. 4.2.6 with the MeanWell Charge controller rev. 4.2.5. The Celllog CMS/Balancer tests are ok and I want to connect to the MW charger with the TPpacks Charge Controller. There is a two-wire HVC/optp output which I should...
  6. manfred59

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

    Hi, I have found the error. It has been an interrupted trace on the second channel! Now everything is working! :D
  7. manfred59

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

    no cells connected! Please check the voltages on this photo, I took it with the camera in a better resolution!
  8. manfred59

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

    Hello! I hope somebody could help me with the problems I have, perhaps Fechter :cry: As you see on the photo the second channel does not work as it should. Only the second led is lit and the main led is red. But shorting the pin 7/8 of the optos it gets green. I have the meanwell plugged...
  9. manfred59

    Quick Voltphreaks Question

    I too had problems with these single cell chargers. 4 out of 12 of these chargers made troubles and did not charge anymore, but I did not change the polarity. Some died on heat problems maybe, I don't know really. The last one was very curious, when I connected it directly to a multimeter it had...
  10. manfred59

    Where to buy a single cell lifepo4 charger

    I use these: https://s.p10.hostingprod.com/@www.voltphreaks.com/ssl/catalog/product_info.php?cPath=3&products_id=28 But they should not be used without a space between two or more of them, because of heat problems!
  11. manfred59

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

    Yes, thank you Andy, this was my fault, now the BMS is working perfectly. First do all connections to the BMS an then connect the charger!
  12. manfred59

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

    @fechter My BMS board is not permanently connected 1. the charger is off 2. connecting the multi-pin tap wires via one big connector (ok) 3. connecting the three powerpole connectors coming from the charger to the BMS board (ok) 4. connecting the batterypack main connector to the BMS board...
  13. manfred59

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

    Good news! I am waiting for the new board because my v.2.3 makes big problems. I had this problem once before, but now it is even more stubborn than ever. Perhaps I connect the BMS to the batterypack in the wrong order? I am doing like this: First I connect the multi-pin connector to my 16s...
  14. manfred59

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

    The first four units behave as they should do, with a voltage of 14V all four red leds lit. Possible there is a burnt trace or a bad transistor. Curios is , that applying 56V to the BMS (12s) all leds lit and the green led comes up.
  15. manfred59

    Switch mode supply mod

    Sorry I did not test it with the higher voltage before the shunt mod, so I cannot say if the max. current was 9,3A as it reads on the label of the PSU.
  16. manfred59

    Switch mode supply mod

    Indeed after changing the resistor R25 from 2k7 to 2k2 the range opened to 56V. GREAT! :D I charged my 12s a123 battery and after cutting one of the three shunts the current is max. 8,35A at 44V so the watts up reads max. 367W. The fan did not start running, the case was hand warm.
  17. manfred59

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

    My BMS v.2.3 for 12 cells needs about 4,6 V/cell to change the led to go green whithout a battery connected. Normaly 3,8V should be enough. What could be the reason? Any ideas?
  18. manfred59

    Switch mode supply mod

    First I added to ZD1 a zener diode with 19V to my 36V PSU. I could not see which value the original zener has, but I think it is 39V. R25 next to the pot is 2K7 - I did not change it to 2k2 - should I do it? The original pot I changed to a 5 K 10 turn. The first test : max 40V :cry: !!??? This...
  19. manfred59

    Switch mode supply mod

    Hello! I also have a Meanwell S350-R12 from 12-2007. The voltage range is now at 34V- 40V. There are three shunts. I want to increase the voltage perhaps to max. 50V or so, and reduce the current from 9,7A to 5A. I have found ZD2 and ZD3, but cannot find ZD1? R25 looks like 2k7, R33 is 470 ohm.
  20. manfred59

    Got my NEW Headway BMS - It's finally all working!

    It was this page I think! http://endless-sphere.com/forums/viewtopic.php?f=14&t=5416&start=465
  21. manfred59

    VoltPhreaks Single cell chargers fried!

    My friends are using the single cell chargers vom Voltphreaks and there are untill now about 5 which fried. :( I have ordered 20 small single cell chargers and 20 wide ones from VPh the last year. The wide ones have no smd parts in it, but the small ones. I have opened the fried yesterday and...
  22. manfred59

    WattsUp was in the rain!

    Hey guys! After beeing some time in wet weather the screen did not show the full display, only the right half of it. After drying, my wattsup meter shows only grey rectangles in the first row when powering up. No v2.1 text appears at startup. Is it dead? Is it possible to reset something?
  23. manfred59

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

    Hello Fechter! Yes exactly! Yes, I am disconnecting the BMS from the battery after charging. I usee the Molex Mini-Fit connectors 20pin two rows (9A). Perhaps another reason: the charger I use is a Switching Power Supply 12V and 48V in series at 8A. As in an earlier post you told me to mount...
  24. manfred59

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

    The problem with my BMS is back again. :cry: On page 76 I reported from this problem. After connecting the half discharged 16s/6p battery with the main + and - powerpoles the first(near to the control unit) orange led and the last one (16th led) are lit. I changed the U102 (LM431 2.5V linear...
  25. manfred59

    Connecting the LVC 2.3 board?

    Hi wanders! The LVC board I use was made by myself (layout, print ...) and I did it only for 4 cells! So you could not find it at TPpacks.com!
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