Where can I get these BMS wires?

[WillAK]

I bought a battery box 'kit' from Alibaba which came with a 200a BMS, and these 25mm2 thick wires and an even thicker positive wire. (Photos attached).

I've also bought a new JK BMS but it wont come with these wires.

So my first question is, where can I buy these thick wires, with two connectors on one end, and a single connector on the other? Secondly, why does the BMS have these two connections and do I need to use them both or would one be enough?

And also, what size wire would the red one be in mm2 and AWG? It's about double the size of the black wires which are marked 25mm2 and it's marked as 300a

Thanks
Will.

 

[DIYrich]

Buy a good crimper and make them yourself.

Two wires reduces the amperage on each wire. Smaller wire is less strain on the connection to the bms board. Both allow cheaper manufacture of the bms.

Use both connections if you want full amps through the bms.

 

[WillAK]

Yeah after I clicked submit I realised they are simply two wires crimped together into one. It's just difficult to find the wire size and the crimpers where I am. They arent on Amazon here.

 

[DIYrich]

Where are you located? I only needed to make a few wires, so I bought the hammer crimper. Cheap but effective.

 

[Sennen]

Guessing Alaska by their username

 

[WillAK]

No not Alaska. AK is the first two letters of my surname. I live in southern Spain.

 

[WillAK]

Can anyone tell me what size the 300a red wire would be??

Black wire is 25mm2 and the red is roughly double.

 

[Sennen]

300A should be 4/0 wire. (0000) Copper