Set of 4 wires to connect the batteries together: 1 Red, 1 Black, 1 White/Red, 1 White/Black
Please note these are three-wire cable sets. The older two-wire cable sets were discontinued. If your cycle has the two-wire cable sets then you may want to also upgrade to the newer three-wire controller to battery wires.
1. Connect black battery terminal wire to black controller wire.
2. Connect red battery terminal wire to red controller wire.
3. Connect white terminal wires together - there may be a small spark, which is totally normal.