This is an optional Factory RC D413 Zeus Carbon Fiber Polarity Strap. This 3mm carbon fiber “Polarity” battery strap has the battery polarity marked into it! This helps you identify the proper connection on your pack. Plus, it works with both polarity direction, simply flip the strap in the appropriate direction to match the polarity of your battery.
Loosen but do not remove the rear thumb screw to keep the orientation of the strap and polarity markers in the correct order.
This product was added to our catalog on June 3, 2015