FAZUA Evation - Battery Charge Level Indicator

Chapter "Using the battery"
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3 1.7 Battery charge level indicator
As soon as you have switched on the battery, the charge status display
automatically shows a start animation. Immediately afterwards, the LEDs
briefly indicate the current charge level of the battery.
Depending on the charge level, the number of LEDs varies, with each LED
representing 20% of the capacity. If all five LEDs are lit, the battery is fully
charged.
As soon as the battery is fully charged, the LEDs of the charge level
indicator go out.
► When the battery is switched on, press the on/off button on the battery
to check the charge status, e.g. before or during a (longer) trip.