Recent content by Joost

Thanks for your input!! My brother has a Escooter where the battery pack was broken. Now I have a few battery packs 16Ah from my dealer that where 'broken' and fixed them. Now in the old Battery case can holding two off this 16Ah packs! I replaced both BMS's for the SmartBMS but struggling too...

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...

Hello all, Is it possible too retrieve the password from a oz8920/oz890 chip? Finally I hooked my secondhand BMS (16s LiFePo4) O2Micro OZ8920 with 2 chips on it. After struggling too communicate over the i2c port I got the addresses chip 1(u2 on the board) has 0x62 chip 2 0x60 (u1 on the...

I found the problem...... It's the Smart BMS! When I connect a load as a controller it cuts off. I reproduce it by connecting a lamp and the BMS disconnect the output power. A strange thing is that the BMS's led not lights up. Is there a way too force the BMS in balance mode? C7 won't help.

My personal experiences is too use hand gloves! Not only for your own protection but also for your electronics! For unexplainable reasons I'm getting charged and when I go out my car or walk upstairs in a shop and touching my car or stairs there is a relatively big spark!!!! This have make...

Solved!!! It's the Smart BMS.... I have another one but I'm scared too use it. I don't want to loose another one.....

Sorry for the bad information. Battery is solved but I'm waiting too the dongle so I can reprogram the bms. The fault was on the multimeter side. I was reading different values than my lipo charger and alc 8500 expert station. Too solve it I bought a better multimeter. About the controller...

If I disconnect the controller I messure 48,8V, but when I connect the controller it drops too 18V! I claims slowly from 11V too 18V. Is this a mosfet failure?

I've changed the battery but that wasn't it. A stupid question: the ignition key/switch will this disconnected or connecting the circuit? I'm struggling with a stupid alarm, if I connect it to the battery directly I can use the seat-unlock and hearing the alarm sound.

Good morning, This dummy want too knows where the shortcuts on the pcb stands for....... DS= E= S= B= 1:1= GND= Ground XS=Speed limiter T-,T+,T= throttle -,W,V,V,+= Hall signal wires RY= VS= RL= D= Q= XL= X= XL,X= += Battery + -= Battery -

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...

Hello again, After many tries too read and write too the smart BMS with many different dongles I bought the expansive smartBMS own sub O2Micro i2c dongle. I tried: RUSB3410 Pikkit icd 2 Profilic 23xx Ftdi rs232 Rfduino Nothing worked. All of the dongles has not the good vid id. Is there a...

The problem is unbalanced cells. Li-ion charged at 4,2v

Bottom balancing would maybe help. With bottom balancing will all groups bring too the same voltage level, and not in capacity And top balancing will only leveling the capacity

Thank you for your answer. The battery pack holds 2x 13s8p li-ion cells. Every part has its own BMS. Too charge the battery pack I connected both BMS on one charge input. The problem came after I charged every group on both parts. After finishing it I took a drive around 15Km. Then I hook it...