marposs IWAVE2 Instruction Manual page 36

4.3.2 Display of the handle during charge
The display is switched off during charge. Pushing one of the two buttons of the handle,
the recharge percentage is shown:
Figure 4-11. Display of the handle during charge.
WARNING
After the re-activation from the "Sleep mode" or in the case of complete
discharge of the battery of the handle, the percentage of charge is not
displayed until the end of the first charging cycle.
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