74 | Battery - Discharging temperature error

Learn how to resolve a battery discharging temperature error.

Written by Alex Kovell

Last published at: September 9th, 2025

Table of Contents

1 E-bike remains stationary 2 Move the bike to a Well-ventilated Area 3 Reboot the e-bike 4 Replace the Battery 5 Reach out to the Service Team if you need additional support!

Description

During discharging, the battery operates within a normal temperature range. If the temperature exceeds this range, it can cause abnormalities in the discharging processes.

⚠️Triggers of Error Code

The following are possible causes of error code 74:

  • Battery overheating during discharge.
  • High ambient temperature.
  • The long uphill ride with a heavy load
  • Malfunctioning BMS (Battery Management System)

1 E-bike remains stationary

Before proceeding with the e-bike inspection, ensure the bike is stationary, and do not sit on the bike, pedal, or apply any force to the pedals.
Long press the power button to turn off the e-bike.

 
 

2 Move the bike to a Well-ventilated Area

Move the e-bike to a well-ventilated area with room temperature to let it recover to the proper system operating temperature for at least 10 minutes.

 
 

3 Reboot the e-bike

Reboot the e-bike to check if the error code still exists. If this doesn't fix the issue, proceed to the next step.

 
 

4 Replace the Battery

Replace the [Battery] with a new spare, then reboot the e-bike to check if the error code still exists. If this doesn't fix the issue, proceed to the next step.

 
 

5 Reach out to the Service Team if you need additional support!

Contact Customer Care or the Hyena Service Center for further technical assistance.

 
 

 

Source

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