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  1. A

    Solar or wind Power to charge battery

    gas is much cheaper and it would take days to recharge your batteries.
  2. A

    Looking for a BMS

    it says 119 USD for 24S/50-100A. do not let them charge more :twisted:
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    Looking for a BMS

    not sure if you can call them at all. try emailing. the link is not working. but cheaper? i am still pissed chinese want $20 for a $5 part, no way anybody else is selling it cheaper.
  4. A

    Looking for a BMS

    did you contact them? probably the description is wrong... they can make 24S 100A if you ask. btw: i used 2 12S pieces and replaces the FETs. $40 for the boards and good for 100A now. $289 is crazy.
  5. A

    Excess current draw.

    did you try it under load? if the motor cannot take it, it starts to stutter or it draws more current and accelerates. pretty unefficient though...
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    Looking for a BMS

    maybe this is something for you, it says 24S, 50-100A http://www.bmsbattery.com/bmspcm/378-17s26s-24a-max-discharge-current-bms.html
  7. A

    Battery Connection + On/Off Switch

    I gave it a thought and a 12V z-diode should do the trick. This should work from 27V to whatever the FETs can take, having ~12V at Vgs. I will try it soon. edit: I modified my initial post. Works like a charm and it does not trigger the overcurrent protection of my BMS anymore. If you do not...
  8. A

    Battery Connection + On/Off Switch

    I was using it on a 48V system and will test the new 100V circuit without a precharger tomorrow. When I connected it to my 93V battery one FET and the fuse blew cause I forgot to change the voltage divider. If you have different batteries you probably would like something that works from...
  9. A

    Battery Connection + On/Off Switch

    at 100 amps you have a little over 12W to get rid of.
  10. A

    Battery Connection + On/Off Switch

    I build a 100V/100A switch with a precharger: The FETs are IRFB4110 from an old controller, 3 in parallel and the forth one to precharge the controller over a 100 ohm resistor. edit: This is the final result. It charges the controller with 1A for half a second. That should be enough time...
  11. A

    Recomended sources, Crystalyte 409

    crystalyte europe are on holidays, usually they respond within a few days.
  12. A

    Shunt (Rshunt) value for 18 fet lyen controller?

    mine got 4, 1080mohm
  13. A

    EB218 runs on full throttle

    Hi, I just bought a eb218 that always runs on full throttle. I programmed all 3 speeds to 30% and the speed limit to 50%. Connecting a throttle does not make a difference and the cycle analyst override signal gets ignored too. The second odd thing is that the current limit is 25A. If I program...
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