ROYAL evo
Page 70
8.4. Charging the transmitter battery
!!
Never connect the TX without battery to a
charger!
Chargers can supply high output voltages if no
battery is connected. This voltages can cause dam-
ages in the transmitter.
!
Charging with mains chargers or
12V-chargers for max. 8 cells
The battery can remain installed in the TX for
charging. Connection to the charger is made via
the charging socket on the back of the transmitter
(è 7.2.). Use only genuine MULTIPLEX charge
leads (e.g. transmitter charge lead with banana
plugs # 8 6020). For details of other charge leads
and battery chargers please refer to the current
MULTIPLEX main catalogue.
!!
Charging with 12V-chargers
for more than 8 cells
Never charge via the charging socket! Unplug the
battery from the electronics board and use the TX
battery direct charge lead # 8 6021.
The battery management can only work correctly
with a permanent connection (even if the transmit-
ter is switched off) between battery and
electronics board to measure into (charging) or out
of (operation) the battery. Chargers for more than
8 cells need voltage converters producing high
voltages, which can damage the transmitter elec-
tronics.
Full capacity and performance
NiMH batteries only produce maximum performance
after a series of charge/discharge cycles (~5 cycles). The
first charge/discharge cycles should be carried out at
0.1CA (150 mA). Don’t fast-charge the pack until you
have done this.
What means C in charging advices?
C is the charging current, which supplies 100% of its
nominal capacity to a battery within 1 hour. This is a
current of 1500 mA for the 1500 mAh battey of the
ROYALevo. Charging with this current is named 1-C-
charging. This current can be derived from the nominal
capacity in mAh (or Ah) by just removing the letter “h”.
Standard charging
This means that the pack is charged at a current within
the range 0.05 to 0.2 C (75 mA to 300 mA).
The charge time is then calculated from the following
formula:
][
][
][
mAhCapacity
heCharge tim
=
Fast charging
This means that the pack is charged at a current within
the range 0.5 to 1 C (750 mA to 1.5 A). The charging is
finished by the automatic cut-off.
!!
Timer-controlled charging is not permissible!
!!
Important with fast charging:
The charger must be designed to cope with NiMH
batteries, i.e. Delta Peak termination sensitivity < 5
mV/cell, or temperature-controlled termination at
> 0.8°C/min.
Trickle charging
This means that the pack is charged at a current within
the range 0.03 CA to 0.05 CA (45 to 75 mA). Automatic
chargers generally switch over to this mode of charging
when the fast charge phase is concluded. After max. 20
hours trickle charging must be stopped.
This is the correct method of charging:
1. Switch off the transmitter
2. Switch on the battery charger designed for NiMH
batteries (see left column 8.4.) and connect the
charge leads.
3. Check polarity:
Red plug = positive terminal (+)
Blue/black plug = negative terminal (-)
Connecting the charger with reversed polarity
may ruin the battery!
(excessive heat, escape of corrosive electrolyte,
bursting of cells)
4. Connect the charge lead to the transmitter
5. Select the charge current (max. 1.5 A); alternatively
set the current after starting the charge process
!!
Automatic fast chargers:
Use manual current selection!
If the fast charger should interrupt the charge proc-
ess prematurely, reduce the charge current and
start again.
6. If the battery becomes too hot during the charging
(touching impossible) immediately interrupt the
charging.
7. Disconnect the transmitter from the charger at the
end of the process.
8. When you have charged the battery enter the
charged-in energy in the menu L Transmitter,
Batt. charge (8.1.3. a.).
Note:
The development of rechargeable batteries continues
apace, just like other technical components. We there-
fore reserve the right to supply different battery packs
as standard in our transmitters, in order to keep the
equipment abreast of current standards.
8.5. Maintaining and storing
the transmitter battery
Always store NiMH batteries in the fully charged state.
This avoids the danger of deep-discharge.
Store NiMH batteries at a temperature between 0°C and
30°C, in dry conditions, and out of direct sunshine.
Charge unused NiMH batteries every 3 months. This
compensates for the natural self-discharge rate, and
again prevents deep-discharge.
If you have to store a battery for a long period, we rec-
ommend that you balance the cells by giving the pack
several charge/discharge cycles. Protracted storage may
reduce the pack’s usable capacity.
8.6. Recycling
Unlike NiCd cells, NiMH cells contain no cadmium,
which is a toxic heavy metal. Nevertheless, exhausted
cells should not just be thrown in the domestic rubbish.
Take the cells to your local specialist recycling centre.
The cells must first be discharged completely and made
safe against short-circuit (wrap in plastic film).
To Next Page
Loading...
