ONYX Battery Storage

There is no need to turn off the battery for storage. Switching off the battery only disables the charge and discharge cables; the internal battery system remains active.

  • Disconnect for Long-Term Storage: Always disconnect the battery from the bike if it will not be used for more than a month.
  • Optimal Storage Voltage: Charge the battery to 74 volts (60%) before storage.
  • Self-Discharge: A 41Ah battery stored at 74 volts will naturally discharge to about 73.5 volts over three months.

ONYX Winter Battery Storage

Cold Storage: Batteries stored below 32°F may sustain damage, reducing their storage capacity to only 80%.

  • Avoid Heat Sources: Do not use space heaters or heated blankets to warm your battery in a garage; these methods are ineffective and could pose risks.

Riding During Winter

It’s perfectly fine to ride your ONYX with its battery during winter, but avoid storing the battery overnight in temperatures below 32°F.

  • The ONYX 23Ah and 41Ah batteries are designed to handle riding in temperatures as low as -5°F.
  • While Lithium NMC cells generate some heat during discharge, it’s not enough to fully counteract the cold, so you may experience up to a 15% range reduction when riding below 32°F.

Temperature Guidelines for Battery Storage

  • Optimal Range: Avoid storing or charging the battery in environments below 32°F or above 120°F.
  • Cold Effects: Temperatures below 32°F reduce cell capacity to 80%.
  • Heat Effects: High temperatures accelerate cell degradation, impacting long-term performance.

Why Store at 74 Volts (60%)?

For long-term storage, lithium batteries are most stressed when fully charged or fully discharged. Storing at 74 volts (60%) achieves a balanced state:

  • Half of the lithium ions reside in the lithium cobalt oxide layer.
  • The other half remain in the graphite layer.

This balanced state minimizes strain, preserving the battery’s health and longevity.