7
BF-UM-C-BT F03-EN November 2019
USER MANU
AL FOR BA
TTER
Y
Errors - Causes and Solutions
Description
Cause
Solution
The operating display does not
light up.
Power plug is not cor-
rectly connected to the
power supply
Check that all connectors on the
charger are correctly connected to
the power supply.
The charging indicator is not lit.
The battery may be mal-
functioning.
Contact your retailer.
The charging indicator does not
glow permanently red.
The battery may be mal-
functioning.
Contact your retailer.
8.2.4 LED display for
charging status and
charging capacity
Press the
“ “
button for 1 second to indicate
the state of charge from the LEDs on the battery.
Press and hold the
“ “
button for 6 seconds to
indicate the capacity of the battery.
8.2.4.1 Sleep state
To prevent the battery from being discharged,
the battery management system puts the battery
into deep sleep mode. For technical reasons, no
function is specified in sleep mode. Press the “
“ button and hold for 10 seconds to wake up
from Deep Sleep mode.
Charge status indication
LED
LED state
SOC
First LED
blinks
≤ 5 %
One LED
light turns
green
5 – 20 %
2 LED lights
turn green
20 – 40%
3 LED lights
turn green
40 – 60 %
4 LED lights
turn green
60 – 80 %
5 LED lights
turn green
≥ 80 %
