TQ error code
TQ error 4409: ERR 4409 BATT HW – Battery deep discharged or defective cell
High severity Service immediately
Can I ride home with this error?
Ride with caution. No assist until charged; pedal without it.
What it means
The battery is very deeply discharged, or a cell may be faulty.
Likely causes
- Battery left empty for a long time
- Faulty cell
Symptoms
- ERR 4409 BATT HW on the display
How to fix it
- Recharge the battery straight away.
- Switch the system off and on again.
- If the error comes back, contact your TQ dealer.
How urgent is it?
Charge straight away.
Applies to
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