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Powering devices without built in
batteries
In general, the E-WERK can power devices
without built in batteries. When starting
the ride, the output voltage of the E-WERK
slowly increases with the velocity. Therefore,
the connected device will not operate before
the necessary minimum voltage is reached.
This can be remedied by a cache battery (as
offered by different manufacturers, e.g. our
cache battery 461A): Before using the bat-
tery, set the output voltage on the E-WERK's
control dial according to the cache battery.
Set output current to 1.5 A.
Powering and charging devices
without built in batteries
Many mobile devices have a low voltage
entrance for powering them with an external
power supply unit. Connect the E-WERK to
this entrance. The way that device and bat-
tery act when connecting an external power
source has to be differentiated:
a. If the device automatically switches to the
external power source upon connecting the
E-WERK, the built in battery is neither used
nor charged. (If the battery shall be charged
after all, connect the E-WERK directly to the
battery contacts – if possible).
b. If the connected device's built in battery
is charged simultaneously and unavoid-
ably upon connecting the E-WERK, caution
must be exercised so that the battery is not
overcharged. Many devices feature an auto-
matic charging deactivation that prevents
overcharging. If such a deactivation is not
present and if the device shows the charge
status, the battery must be disconnected
from the E-WERK immediately as soon as it
is fully charged. If such a deactivation is not
present and if the device does not show the
charge status, a warming battery is a sign of
the onset of overcharging.
Direct charging of batteries
Independently from devices, single batteries
can be charged by the E-WERK separately or
joined together. Use batteries purchased in
specialist shops (or our cache battery 461A*)
and connect the E-WERK to + and -
of the battery.
Depending on the number of cells and the
battery technology, the E-WERK has to be
set to the correct value:
voltage setting of
E-WERK for ...
number of
NiCd/
Li-Ion/
Pb
cells
NiMH
Polymer
nominal
nominal
nominal
voltage
voltage
voltage
per cell
per cell
per cell
2 V
1.2 V
3.6 V
1
4.2 V
2
2.8 V
8.4 V
3
4.2 V
12.6 V
7.0 V
4*
5.6 V
5
7.0 V
6
8.4 V
7
9.8 V
8
11.2 V
9
12.6 V
With these values, overcharging is not pos-
sible. CAUTION: These values only apply to
batteries without a charging electronic.
Too high voltage can lead to the destruction
of the connected battery. If more than one
cell is connected serially during charging, all
cells must have the same build, capacity and
charge state.
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The output current of the E-WERK should
not be set higher than the capacity value
stated on the battery. The maximum value
for the E-WERK is 1.5 A (should be set e.g.
for our buffer battery 461A). Li and Pb
batteries are charged 100% when using the
values stated above. NiCd and NiMH batter-
ies are charged to about 80% (to prevent
overcharging, limited voltage is used for
charging).
Already at a speed of about 15 km/h the
charging time of the E-WERK is on par with
standard mains connected charging units.
Powering battery headlights by
Busch & Mueller
The E-WERK can be used for charging and –
if needed – simultaneous powering of battery
headlights by Busch & Mueller. The following
values have to be set:
IXON IQ:
6.3 V, 1 A (use charging
socket, charge control
integrated in the headlight)
IXON IQ Speed: 7 V, 1.5 A (connect E-WERK
to one socket of the bat-
tery, headlight to the other)
BIG BANG:
8.4 V, 1.5 A (use cache battery)
Fitting adaptor cables for headlights are
available upon request. The batteries of
IXON IQ Speed and BIG BANG can be charged
separately (without using the headlight).
®
Simultaneous use of dynamo lighting
system and E-WERK
A simultaneous use is possible. Please note
that a functioning parallel operation until
6.3 V (output voltage E-WERK) can only be
guaranteed when using a diode rear light and
IQ headlight by Busch & Mueller. The output
of the lighting system drops up to 50%
depending on the connected device. For
other lighting systems, no statements can
be made. Simultaneous operation diminishes
the output accordingly.
Please note: Depending on national law, you
may not be allowed to use the E-WERK and
the lighting system at the same time after
dark.
Technical details
Ref. no.:
361
IN:
0 to 40 V AC voltage,
0 to 100 kHz. Soft limitation at
50 V peak voltage. 0 to 50 V
DC voltage.
No polarity has to be considered
OUT:
voltage and current limiting,
short circuit proof, reverse
polarity proof
Output:
max. 16 W
Idle output: 0.03 W at 30 km/h
Charge time (non binding): at approx.
15 km/h comparable to charging with
standard mains connected chargers.
Never dispose of electronic parts with your
domestic waste but discard as hazardous waste!
Version: October 2009.
Technical modifications reserved.
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