BMS board how to connect cells

[Jiri_L]

Hello All,
I have got a problem with BMS, I have got the BMS see attached pictures, but I do know in what order I should connect individual cells, from left to right or conversly? Or how can I find what pin should be connected to the first cell?

Thank you very much for your help.

Yours,
JIriView attachment 1

 

[Schrockie]

You're not giving enough information, would like to see a pic of the wiring harness. Generally, say you have a 48v battery, so that is 13s by ?p. Most of the BMS's with this configuration will have 14 wires, One, usually black, will connect to 1st string of the parallel -, then rest usually red, will connect to all + in sequence.
What you need to do is take a multi/volt meter and see where everything is on the positive side. In other words, if you test the (-) end on one side(p1) of the battery while simultaneously have the red on the (+) end(p13) you will have a positive or negative number(4.15 or -4.15 for example).
If it is positive, p1 is your starting point, if negative, the red lead is your p1 and start your ground wire from there.

 

[hemo]

Looks pretty much straight forward to me.
The pins outs are marked on the rear of the BMS.

B0 is connected to parallel cell group #1 on the negative end and wants to see 0v.
B1 is the first parallel positve connection, B2 is #2 connection and so on.
Finally B13 the last positve parallel group.
B0 0v
B1 4.2v
B2 8.4v
B3 13.2v etc,etc.

Check your series connections with your multi meter to ensure the correct volatge.

 

[Jiri_L]

To hemo and Schrockie,
thank you for your reply and your time you pay to me problem, really thank you.
More information:
Thsi BMS is for 36 V i.e. 10s
The BMShave got 11 leadsto battery
The pins B1 to B11 are connected, rest pins are Not Connected
I used multimeter to check, bettween B- pad and B1 in the bus, there is hmicresistanceexactly 10kohms
Outlined in figure bellow,dashed line is the pin B1. What do you think? Is the way I thinking of it correct?






Thank you a lot.

Regards,
Jiri