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Grizzly 72v PPB - Error Code E25Updated 2 days ago

Error code E25 indicates a charger communication fault, meaning the controller is not receiving a data connection signal from the smart charging unit.

CRITICAL WARNING: Always power cycle—Dissipate Controller Energy (DCE)—your motorized bike before disconnecting or reconnecting any electrical components. On dual-battery models, both batteries must be removed to perform a proper DCE. Step-by-step guidance is available in our Power Cycle (DCE) Guide.

Troubleshooting Steps for Error E25

  1. Unplug Charger Cable: Disconnect the charger plug completely from the wall outlet and the battery charging port.
  2. Power Cycle (DCE - Both Batteries): Turn off the bike, remove both batteries from the frame, and perform a full DCE power cycle to dissipate residual controller power and reset communication memory. Leave both batteries off for step 3.
  3. Inspect Charger Connector & Port: While the system is powered off, check the charger connector and battery charge port for bent, dirty, or pushed-back data pins. Ensure there is no moisture or debris in the socket.
  4. Reconnect & Test: Reinstall both batteries, connect the charger firmly to the charging port, plug it into the wall outlet, and check if Error E25 clears from the display.

Need Further Assistance?

If error code E25 returns after verifying charger connections and completing a dual-battery DCE reset, please contact our support team through our Contact Form.

IMPORTANT: Photos and videos are essential for resolving technical support tickets. Please attach clear photos showing your charger connector pins, battery charging port, and display screen showing Error E25 when submitting your ticket.
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