Battery Charge Indicator - Bosch Drive Unit BDU3740 Originalbetriebsanleitung

ing unit battery is powered and charged by the eBike bat-
tery.
Please contact your bicycle dealer if the operating unit bat-
tery is defective.
Operating unit (Mini Remote) power supply
The Mini Remote operating unit is supplied with voltage by a
CR1620 coin cell.
Replacing the battery (Mini Remote)
If the battery in the Mini Remote (1) operating unit is low,
the LED indicator lamp (3) lights up orange.
To replace the battery, unscrew the Mini Remote (1) oper-
ating unit from the handlebars. Remove the rubber insert
(9). This also functions as the battery holder. Remove the
used battery and insert a new CR1620 battery in the rubber
insert (9). Push the battery and the rubber insert (9) into
the Mini Remote (1) operating unit. If the battery is seated
correctly, the LED indicator lamp (3) flashes green for 10 s.
Then secure the Mini Remote (1) operating unit back onto
the handlebars.
Note: The connection to the System Controller is not inter-
rupted when the battery is replaced.
You can obtain the batteries recommended by Bosch from
your bicycle dealer.
Switching the eBike system on/off
To switch on the eBike system, briefly press the on/off but-
ton (12). After the starting animation, the state of charge of
the battery is displayed in colour with the battery charge in-
dicator (13) and the set assistance level with the (10) dis-
play. The eBike is ready to ride.
The display brightness is controlled by the ambient light
sensor (11). Therefore, do not cover the ambient light
sensor (11).
The drive is activated as soon as you start pedalling (except
at assistance level OFF). The motor output depends on the
settings of the assistance level.
As soon as you stop pedalling when in normal operation, or
as soon as you have reached a speed of 25/45 km/h, the
eBike drive switches off the assistance. The drive is automat-
ically reactivated as soon you start pedalling again and the
speed is below 25/45 km/h.
To switch off the eBike system, press the on/off button (12)
briefly (< 3 s). The battery charge indicator (13) and the as-
sistance level LED (10) go out.
If no power is drawn from the eBike drive for about
10 minutes (e.g. because the eBike is not moving) and no
button is pressed on the on-board computer or the control
unit of the eBike, the eBike system will switch off automatic-
ally.

Battery charge indicator

The battery charge indicator (13) displays the eBike bat-
tery's state of charge. The state of charge of the eBike bat-
tery can also be checked on the LEDs of the battery itself.
Bosch eBike Systems
In the (13) display, each ice-blue bar represents 20 % capa-
city and each white bar represents 10 % capacity. The top-
most bar shows the maximum capacity.
Example: Four ice-blue bars and one white bar are dis-
played. The state of charge is between 81 % and 90 %.
If capacity is low, both of the lower displays change colour:
Bar
2 × orange
1 × orange
1 × red
1 × red flashing
If the eBike battery is being charged, the topmost bar on the
battery charge indicator (13) flashes.
Setting the assistance level
On the operating unit, you can set the level of assistance you
want the eBike drive to provide you with while pedalling.
Mini Remote: Briefly press (< 1 s) the buttons to increase
assistance + (4) or decrease assistance – (6) in order to in-
crease or decrease the assistance level accordingly.
System Controller: Briefly press (< 1 s) the mode button
(14) to increase assistance.
Press the mode button (14) for longer than 1 s to decrease
the assistance.
The assistance level can be changed at any time, even while
cycling, and is displayed in colour.
Level Notes
OFF Motor support is switched off. The eBike can
just be moved by pedalling, as with a normal bi-
cycle.
ECO Effective support with maximum efficiency, for
maximum range
TOUR Steady support, long range for touring
TOUR+ Dynamic assistance for natural, sporty cycling
Optimal support whatever the terrain, rapid ac-
eMTB/
celeration when starting from a standstill, im-
SPORT
proved dynamics and top performance
TURBO Maximum support even at a high cadence, for
sport cycling
AUTO The support is dynamically adapted to the rid-
ing situation.
RACE Maximum support on the eMTB racetrack; very
direct response and maximum "Extended
Boost" for the best possible performance in
competitive situations
A)
CARGO Steady, powerful support, so as to be able to
safely transport heavy weights
A) The CARGO assistance level can have an additional description.
The designations and configuration of the assistance levels can be
preconfigured by the manufacturer and selected by the bicycle re-
tailer.
English – 3
Capacity
30 % to 21 %
20 % to 11 %
10 % to reserve
Reserve to empty
0 275 007 3RC | (25.03.2022)