RideFixer

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

  1. Recharge the battery straight away.
  2. Switch the system off and on again.
  3. If the error comes back, contact your TQ dealer.
Still showing 4409? The RideFixer app finds bike shops near you, so you know where to take it.

How urgent is it?

Charge straight away.

Applies to

  • TQ HPR50 with TQ display / remote
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