When the battery is charged and correctly installed, the hook should emit a series of beeps indicating proper connection.

If no acoustic signal is emitted, check the following points:

1. Initial checks

  • Verify the battery’s charge level.
    If the battery is completely discharged, the hook may not respond.

  • If the hook is new, make sure that any protective stickers or terminal covers on the battery have been removed before installation.

  • Check that the battery is positioned correctly. On the EVO-1700 model, a rounded corner should align with the matching slot.

2. Visual and mechanical inspection

  • Ensure that the battery is fully inserted into the hook and that nothing obstructs the connection.

  • Check that the locking tabs are not broken or deformed.

    • If damaged, do not use the battery, as it could detach during operation.

  • Inspect the battery and hook terminals to confirm they are in good condition and making proper contact. Remove any dirt.

3. Electrical verification

  • Measure the output voltage at the battery terminals using a voltmeter.

  • Reference values:

    • Evo2-1700: 12 V

    • Evo-1700: 24 V

  • If the reading is 0 V, this may indicate that:

    • The battery is completely discharged, or

    • The Battery Management System (BMS) has disabled the output for protection.

4. Battery Management System (BMS)

  • The BMS protects the battery against:

    • Overloads or sudden discharge peaks.

    • Excessive temperatures.

    • Overvoltage conditions.

  • If the battery is locked by the BMS, connect it to the charger to reset and restore normal operation.