HELP: DIY 48V 750W Hailong battery components


New member
Local time
7:34 PM
Nov 23, 2022
I am researching building my own Hailong battery for my BBS02. So far I have found all parts and accessories needed except for what gauge wires I will need. Can anyone point me in the right direction? My BMS does not come with leads that connect to "B+,B-,P-,C-". What gauge wires and type do I need? Also, What gauge wire and type is used for the main power. Lastly, what connectors will I need?
To calculate the gauge of the wires you can use a wire size calculator such as this one here:

For the main wires you can input the voltage, max amperage of your controller and one way distance. That will give you a wire gauge recommendation for the main wires.

I'm not sure about the wire gauge for the BMS.