b) Charging Rechargeable Batteries in the Transmitter
For operation with rechargeable batteries you can connect
a charging cable (not included in the supply) to the charging
socket (1) and charge the rechargeable batteries in the trans-
mitter when the transmitter is switched off.
Always make sure the polarity of the connecting plug is cor-
rect. The inner contact of the charging socket must be con-
nected to the plus terminal (+) and the outer contact to the
minus terminal (-) of the charger.
The charging current should be approx. 1/10 of the capacity
value of the inserted rechargeable batteries. For recharge-
able batteries with a capacity of 2000 mAh this corresponds
to a charging current of approx. 200 mA and charging time
takes approx. 14 h.
Connect the charger only if rechargeable batteries (1.2V/cell) have been inserted in the transmitter. Never
try to recharge batteries (1.5V/cells) with the charger.
In order to avoid damage to internal printed conductors and connections, please do not use quick charg-
ers.
Because a protective diode is integrated into the transmitter's charging circuit, you cannot use any chargers that briefly
interrupt the charging current to measure the current battery voltage. In this case, remove the rechargeable batteries
from the transmitter for charging.
Attention!
The mains adapter included with the model is only suitable for connecting the LiPo charger (see figure 4).
It must not be used for charging of the transmitter rechargeable battery. The excess voltage could destroy
the battery, transmitter or charger. There is a direct danger of fire and explosion!
c) Switching on the Transmitter
When new batteries or freshly charged rechargeable batteries have been inserted, switch on the transmitter with the
function switch (see figure 1, item 6) for test purposes. The green LED display (see figure 1, item 8) indicates the
power supply of the transmitter.
If the power supply is not sufficient any more for faultless operation, the LED colour switches to yellow. In this case,
you should stop operating your model as quickly as possible.
If the voltage drops below 7.5 V, the LED colour turns red. To continue operating the transmitter, recharge the batteries
or insert new batteries.
In order to avoid the memory effect of NiCd rechargeable batteries, you should connect the charger only when the
rechargeable batteries are completely discharged.
42
Figure 3