GRAUPNER ULTRA DUO PLUS 30 Operating Manual page 21

15. „Akku 2" (battery 2) charge output
The "Akku 2" charge output is designed for recharging Nickel-Cadmium (NiCd) and Nickel-Metal-Hy-
dride (NiMH) batteries consisting of 4 to 8 cells. The outputs "Akku 1" and "Akku 2" can be used at the
same time. This enables you to charge a flight or drive battery together with a receiver or transmitter
battery, which is very convenient.
The automatic "Battery FULL" detection circuit operates on the Delta-Peak principle, like the "Akku 1"
charge output, but the threshold voltage is fixed, and cannot be altered.
This output is very simple to use, and requires no more than setting the charge current and starting the
process.
The charge current has a default value, and you can pre-set this in the User Menu so that the appropri-
ate value is set automatically every time you connect a battery. This is especially useful if you always
wish to charge at the same rate, as this saves you having to set the charge current.
Note: if you wish to charge a transmitter battery at the "Akku 2" output, please read the information in
Section 3. of the General Operating Notes.
Initial power-on current „Akku 2" charge output
Initial NiCd
MODE MODE
User
program -∆ Peak
settings
MODE
MODE
Erase user Button click
settings buzzer
The value for charge current which is automatically set when
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
B a t t . 2 s t a r t c u r r
you connect the battery to the charger can be set in the "User
settings", "Power-on current" "Akku 2 start current" menu.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2 5 0 m A
The charger stores the value you set here even after you switch
+ -
the unit off; however, you can also alter it again at any time.
INC DEC
Setting the charge current „Akku 2" charge output
When you connect a battery to the "Akku 2" charge output, the
screen display switches to "Akku 2 setup" mode.
Use the INC / DEC buttons to set the charge current to suit the
battery; each press changes the value by 50 mA.
Once you have selected the correct setting, initiate the charge
process by pressing the START button.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
B a t t . 2 s t a r t c u r r
The screen then switches back to the standard display, i.e. the
data relating to the "Akku 1" charge output.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2 5 0 m A
+ -
INC DEC
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NiMH Charge termin NiCd / NiMH
MODE MODE MODE
−∆ Peak
delay safety timer
Initial
MODE MODE MODE
Car battery-
max.
current
cut-off
current
NiCd 0,1...7A
NiMH 0,1... 7A
Lith. 0,1... 7A
Pb 0,1... 7A
Akku2 0,05...0,5A
or autom. current
Simultaneous use of the „Akku 1" and „Akku 2" outputs
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i C d - M a n .
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
1 , 5 0 0 1 7 3 5
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
B a t t . 2 s t a r t c u r r
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
3 5 0 m A
+ -
INC DEC
START
MODE
N i C d - M a n . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
1 , 5 0 0 1 8 3 2
„Ready" indication and display of charged capacity „Akku 2"
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i C d - M a n .
1 , 5 0 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 0 1 7 3 5
2 sek.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
* B a t t . 2
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
6 5 7 m A h
Both charge outputs can be used at the same time. If a battery
0 1 0 : 4 3
is already connected to the "Akku 1" output and the charge
3 , 4 5
process is in full flow ...
And if you now connect a battery to the "Akku 2" charge socket
...,
Then the screen switches from the "Akku 1" charge monitor
display to the "Akku 2" charge current setup menu. Meanwhile
the charge process at the "Akku 1" output continues to run in
the background ...
The charge current for the "Battery 2" output can be set and
altered using the INC / DEC buttons .......
The charge process for the "Akku 2" output can now be initiated
by pressing the START button ...
The screen then switches back to the display of the "Akku 1"
0 1 0 : 5 2
charge parameters.
3 , 5 3
When the battery at the "Akku 2" output is fully charged, the
0 1 0 : 4 3
process is automatically terminated.
2 3 , 4 5
The screen then shows the message "Batt 2 complete"; at the
same time the bottom line of the screen shows the capacity
which the battery has accepted.
The screen now displays the status of both charge outputs
r e a d y *
alternately until you disconnect the pack from the charger.
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