RCR 72v QS8 Main Battery Cable Installation Guide

RCR 72v QS8 Main Battery Cable Installation Guide

The new 45Ah ONYX batteries use QS8 discharge connectors.

If your bike still uses the older red Anderson SB50-style connector, you’ll need to swap out your main battery cable to be QS8-compatible.
⚠️ Note: Anderson-style battery leads are not compatible with the new 45Ah ONYX batteries.



 

Step-by-Step Installation

1. Remove the Righthand Side Panel

To access one of the five panel screws, you'll need to remove the seat.
If you do not have a rear rack installed, you can instead loosen the four seat nuts and slide the seat backward and out of the way.

2. Unplug & Remove the Battery

Disconnect your battery and remove it from the tray.

3. Remove the Existing Battery Cable

Use a 14mm wrench to remove the two terminal nuts securing the existing Anderson battery lead.

Remove the old Anderson cable completely — it will no longer be used.

4. Install the QS8 Battery Cable

Route the new QS8 connector through the designated hole (see diagram/photo).

❌ Do not route it through the hole inside the battery tray — this will interfere with battery placement.

5. Connect to Terminal Posts

Attach the new positive (red) and negative (black) ring terminals to the matching posts.

These terminals should sit:
On top of the battery/controller lugs
Underneath the terminal post nuts

✅ Color Match Reminder:
Red → Yellow/Positive
Black → Black/Negative


6. Secure the Installation

Tighten the nuts using a 14mm wrench.
Reattach the righthand side panel.
Reinstall or slide the seat back into position and tighten seat nuts if loosened.

Ride safe!

-ONYX Motors Team

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