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  1. J

    Parralel SmartBMS 13s how to configuration?

    Hello all, Is there someone who will explain how to configuration 2 smartBMS's EEPROM settings so they will work in parallel setup. I connect the batteries too the smartBMS so they can balance there own pack. The power out lines are connected in parallel as the charge connection. The problem...
  2. J

    Repairing controller 2v problem

    Hello all, I want to ask you if there a people that can help me too solve the 2v problem on my escooter controller. Yesterday I tried too repair it but could not find the problem. All caps and mosfets seems oke. The problem is that I get only 2 volts where it should be 5 volts. I have a...
  3. J

    BMS's i get sick of it too understand what the problem is

    Dear forum friends, As the topic say I'm get sick off the BMS problems that shutdown the battery!!!!! Is there some kind of information or book where I can learn about bms's?? I'm not a electronic guy but want and need to learn solving problems. Where Can I find it? I'm not the only one...
  4. J

    BMS Software Firmware different suppliers?

    Hello Electric freaks, For a few days I'm searching the Internet for information around 'smart bms' firmware software and data sheets. The problem is i can't find a place where they all together!...... I'm looking for the O2Micro OZ8920 firmware,software and how to hook it up. Is it possible...
  5. J

    "Smart" BMS with OZ8920-TN microchip

    Hello everyone, A week ago I bought some "defect" batteries from a dealer. Now I'm opening all the packs and measured one by one group. One pack has a fault group that not will wake up. The batterie packs are oke, but wen I want to charge them it stops after a half hour. After a inspection I...
  6. J

    Charging trouble

    Hello electric geeks, I want to ask for help too solve the next problem. I have a 48V 6A lifepo4 charger that charger too a height of 58,4V. Now is the problem that wen it hit its 'full charge' voltage it cutoff. No trickle charge will start, I know/think because the voltage drop and the...
  7. J

    BMS database?

    Hello, I was wondering if there is a database from any kind of BMS? I have here a LG Chem. bms for a 24V Li-Ion battery and this one is a "smart" / programmable. The point is I cannot find any information or software to read it out... Are here people who have the knowledge and interest to...
  8. J

    How to repair faulty WL-086-01 LiFePo4 BMS?

    Hello, After i finish repairing my battery pack i hooked up my BMS. Now i have the problem the BMS will not workshop After a hour. My question is how to mesure/repair a BMS??? What are the steps too begin? Please i used the search function but cannt find a older topic. Kind regards, Joost
  9. J

    Troubling spot welding with DN-5 0,3mm nickle band

    Hello members, After a long time I'm picking up my work to finish my diy battery pack. A little history One year ago I bought a secondhand escooter only for the LiFePo4 pack in it. Now I haven test all the cells for there capacity and IR I can finally make a 28 Amp 48V battery pack! It is...
  10. J

    Learning new brushless controller to use on ebike

    Hello, I bought the brushless motor controller(YK85S) witch can be use for scooters or bikes. New I have to setup the controller too see iff it works oke like rotation derrection. I connect the battery, motor wire small black and red and the fase wires. Now I have to connect the throttle...
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