Continuous light red temperature monitoring indicator

The continuous light of the red indicator (2) signals that the temperature of the battery is outside of the permitted charging temperature range (0–45 °C). If the battery temperature is above 45 °C, the battery cooling (Active Air Cooling) will switch on and cool the battery more quickly until the battery temperature is back within the permissible charging temperature range.
The charging process begins as soon as the permitted temperature range has been reached.