JBD BMS wiring

[Jakehound78]

So I think this was discussed to some extent but
A. Can’t find it and
B. Don’t know if it was specific to my bms

So I have a JBD SP20S020A for 16s lifepo4 battery. I want to use this on a 13s lithium ion battery and need to change the balance wiring. I attached pics of the BMS. Can anyone help me with wiring diagram (as I said I think someone already sent this) - could you send it again if so.
In its current form, the jst connection ports are set for 16s lifepo4 battery, with bc8-9, bc13-14, and bc17-19 soldered together.. which pins do I need to solder together for this to be used for a 13s battery? I can change the settings to lithium ion in the BMS settings.
Thx in advance for any help.

 

[sunshine_eggo]

In most cases, the model of BMS must explicitly permit a variable number of cells. Often referred to as a "universal" BMS. Example:

Jiabaida(JBD) Smart 6s-20s Lifepo4 200A Bluetooth Universal Lifepo4/Li-ion/LTO Battery Management system | SRIKO Batteries | Online store for electronics | Online battery store

This is a universal BMS which can be used for Li-ion/Lifepo4//LTO Cell Chemistries. It can be used for many battery pack configurations including 6s 7s 8s 10s 12s 13s 14s 15s 16s 17s 20s 21s Wiring Diagrams for different battery pack Configurations are available at srikobatteries.com website...

srikobatteries.com

 

[Jakehound78]

In most cases, the model of BMS must explicitly permit a variable number of cells. Often referred to as a "universal" BMS. Example:

Jiabaida(JBD) Smart 6s-20s Lifepo4 200A Bluetooth Universal Lifepo4/Li-ion/LTO Battery Management system | SRIKO Batteries | Online store for electronics | Online battery store

This is a universal BMS which can be used for Li-ion/Lifepo4//LTO Cell Chemistries. It can be used for many battery pack configurations including 6s 7s 8s 10s 12s 13s 14s 15s 16s 17s 20s 21s Wiring Diagrams for different battery pack Configurations are available at srikobatteries.com website...

srikobatteries.com

Ok thx. Don’t think this one is universal. ?‍

 

[justgary]

Ok thx. Don’t think this one is universal. ?‍

The chemistry of the battery matters also. If your Li-Ion cells want a different charge profile than LFP, you probably want a different BMS.

To answer your question though, I don't think you will hurt the BMS by trying a few tests. You might start by tying BC10 to BC8-9, BC12 to BC13-14, and BC16 to BC17-19. You could save some soldering by just tying the wires together at the cells, then solder after you find something that works.