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Les langues disponibles
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i M H
d i s c h a r g e
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
1 . 0 0 A
+
-
INC
DEC
ENTER
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i M H
c y c l e
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C : 2 . 5 A
D : 1 . 0 0 A
+
-
DEC
INC
ENTER
Ni-MH-Delta-Peak (-∆ ∆ ∆ ∆ ∆ Peak) trigger voltage
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i M H
d e l t a - p e a k -
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
v o l t
= 1 0 m V / c e l l
+
INC
These programs are only suitable for charging and discharging LiFePO
of 3.3 V / Cell, Lithium-Ion batteries with a voltage of 3.6 V / cell, and Lithium-Polymer and
Lithium-Manganese batteries with a voltage of 3.7 V / cell. The outstanding feature of Lithium
batteries is their much higher capacity compared to other battery types. However, this important
advantage is offset by the need to adopt different handling strategies: they must be charged and
discharged using specific methods, otherwise they will be damaged, and can be dangerous. The
directions in these instructions must be observed at all times when handling these batteries.
Specific information and safety notes will also be found in the battery manufacturer's technical
information.
26
Ni-MH discharge program
The typical purpose of this program is to determine the
residual capacity of a transmitter, receiver or drive battery,
4 . 8 V
or to discharge the pack to a defined level.
In this program the charger discharges the pack using the
+
-
set discharge current (0.10 ... 5.00 A, left of screen) until its
INC
DEC
voltage falls to the set final discharge voltage (0.1 ... 36 V,
right of screen).
The set final discharge voltage should be a value of around
1.0 ... 1.2 V per cell, in order to avoid the pack becoming
deep-discharged. Deep-discharging a pack runs the risk of
reversing individual cells, i.e. they exhibit reversed polarity.
Ni-MH conditioning program
This program is designed to optimise the capacity of a
ENTER
battery, and balance the state of its cells.
At top right you can use the INC or DEC button to determine
INC
INC
whether the conditioning program is to start with a charge or
or
discharge cycle. After this you set the number of cycles
DEC DEC
from 1 to 5 (e.g., if you set three cycles, the pack will be
charged and discharged three times). The program dis-
charges the battery using the set discharge current stated
C > D
1
on the right of the screen (0.10 ... 5.00 A), and then rech-
arges it using the charge current (0.1 ... 10.0 A) shown on
the left of the screen. The charge process is terminated
+
-
automatically in accordance with the values already set for
INC
DEC
„Ni-MH Delta Peak cut-off voltage". The discharge cut-off
voltage is set in the Ni-MH discharge program. The method
of reading out the values for the actual cycle is described in
the section „Screen displays".
It is possible to adjust the trigger voltage (in mV per cell!) of
the automatic termination circuit for Ni-MH batteries.
However, Ni-MH batteries have a less pronounced voltage
drop than Ni-Cd cells, and a practical range has proved to
-
be 5 ... 25 mV / cell. If the trigger voltage is set higher, there
DEC
is a danger of overcharging the battery; if set lower, there is
a danger of premature termination.
We recommend that you carry out a series of test charges
to establish the ideal trigger value for your batteries.
Start with 5 mV / cell.
13. Lithium programs
batteries with a voltage
4
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