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diy solar

Is this the way I need to connect my BMS?

Piet_de _Pad

The sun: a free natural large nuclear reactor
Joined
Jul 2, 2022
Messages
21
Location
Queretaro mexico
Dear solar enthusiasts,
I'm planning to build my first battery pack and need confirmation on how to connect my BMS. I plan to use a JBD-AP20S003S BMS and made a drawing for it. Can you comment on if my battery pack is correct connected?

I do have a few other questions.
Bluetooth interface: Can I use a standard TTL Rx Tx Bluetooth module for this port?
Rx Tx interface.: Can I use a standard USB to TTL Rx Tx module for this.
NTC resistor: What type of NTC is used for this BMS. A standard 10K ohm NTC 3950 type?
Switch: What exactly does the switch do? Does it switch the DC relay on this module.
Signal Ground: Is the ground of the Bluetooth also the ground for the Rx Tx, I assume it is.

For people with the same questions, have fun with the schematic.
I hope that someone can help me.
Thanks


1706905904471.png
 
Looks right,
good idea to double check all the cell leads prior to plugging into the actual BMS to be sure the voltages make sense first.
 
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