Following these battery best practices will help maximize performance, extend battery lifespan, and reduce the risk of long-term issues with your RCR battery.

Battery Voltage & Remaining Range Reference

For a more accurate idea of your actual remaining battery level and range, we recommend monitoring battery voltage.

RCR 72V

• 83V = 100%
• 72V = 50%
• 61V = 0%

RCR 80V

• 91V = 100%
• 80V = 50%
• 64V = 0%

Voltage provides a useful reference for determining your remaining battery level while riding.

General Battery Care Guidelines

Lithium batteries perform best when they are not kept at extreme charge levels for extended periods.

Recommended Charge Habits

• Avoid storing the battery at 100% for long periods
• Avoid storing the battery below 50% for long periods
• For long-term storage, a charge level around 50–70% is ideal
• Unplug the battery from the RCR during long-term storage

Charging Best Practices

During Regular Use

• Charge the battery when convenient, not only when fully depleted
• Partial charges are safe and do not harm the battery
• Use the correct charger for your battery voltage and amperage

Charger Notes

• Charging at a rate higher than the stock 10A charger can accelerate battery cell degradation and will void the warranty
• If the battery is warm after riding, allow it to cool before charging, as it may not begin charging immediately. This is normal behavior.

Heat Management

• Lithium batteries and motors generate heat under heavy load
• Aggressive riding, sustained high speeds, and hill climbing increase heat
• If the system becomes hot:
  • Reduce speed
  • Switch to a lower power mode
  • Allow the bike to cool

The bike may enter a protective reduced-power state when hot. This is normal and helps prevent damage.

Storage Best Practices

Short-Term Storage (Days to Weeks)

• Store between 50–80% charge
• Keep the bike in a cool, dry environment

Long-Term Storage (Weeks to Months)

• Store the battery around 50–60%
• Unplug the battery from the RCR
• Check battery charge periodically
• Do not leave the battery fully charged or fully depleted for long durations

Battery Health & Safety Notes

• Lithium batteries can become unbalanced or unrecoverable if neglected
• ONYX does not repair, refurbish, revive, or rebalance batteries. These services must be completed by a professional lithium battery shop.
• If a battery becomes severely unbalanced or fails to charge properly, replacement is often the safest option

Connector Care

QS8 / QS9 Connector Best Practices

• Ensure connectors are clean and fully seated
• Dirty or loose connectors can cause:
  • Arcing
  • Power cutouts
  • Error codes
• Exposure to weather, debris, or vibration can loosen connectors over time
• Periodically inspect and reseat connectors if needed

Summary

Do:

• Monitor voltage for a better idea of remaining battery level
• Store between 50–70% when not riding
• Unplug the battery during long-term storage
• Let the battery cool before charging
• Reduce speed if the system becomes hot
• Keep connectors clean and secure

Avoid:

• Long-term storage at 100% or near empty
• Aggressive riding on low battery
• Charging above the stock 10A rate
• Attempting battery repairs