The flatbar ringshifter unit is equipped with an LED. The color of the LED indicates the battery status. You can check the colour of the LEDs while shifting. However, for safety it is recommended to get off the bicycle and perform the following procedure.
1. Push the flatbar handlebar unit (2) up or down very briefly (for less than 0.3 seconds).
2. Observe the color of the LED (1):
| LED colour | Battery status |
| Green, for 0.2 seconds | The battery is at more than 25% charge. |
| Red, for 0.2 seconds | The battery is between 15% and 25% charge |
| Red, blinking for 1.5 seconds | The battery is at less than 15% charge. |
| No color | The battery is completely flat. |
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