The Transmitter Battery; Safety Notes; Charging The Transmitter Battery (Slow Charging) - Multiplex ROYALevo 7 Manual De Instrucciones

ROYAL evo 7

8. The transmitter battery

!
The transmitter battery is responsible for supplying
power to the transmitter, and plays an important
role in operational safety. For this reason please
ensure that you observe the following notes
regarding charging and maintenance of the
battery.
!
The transmitter battery is fitted with a self-
resetting fuse which protects the battery itself as
well as the transmitter electronics from short-
circuit, reversed polarity and excessive currents.
Note that the transmitter circuitry features no ad-
ditional fuse! For this reason the transmitter must
always be used with a genuine MULTIPLEX trans-
mitter battery with fuse.
The ROYALevo is powered by a high-quality battery
pack consisting of six AA-size NiMH (Nickel-Metal-
Hydride) cells. Compared to NiCd (Nickel-Cadmium)
cells NiMH batteries offer significantly higher energy
density (capacity : weight) and therefore provide longer
operating times for a given weight, but they do require
more careful handling - especially in respect of charg-
ing.
Note:
Like all other technical components, batteries are sub-
ject to constant development. We therefore reserve the
right to replace the standard transmitter pack (NiMH,
1500 mAh) with one which reflects new standards (e.g.
higher capacity).

Safety notes !

8.1.
Batteries are not playthings, and must be stored well
out of the reach of children.
Check that the battery is in good condition before
every session. Do not continue to use a pack which is
damaged or obviously defective.
Do not overheat, burn, open or short-circuit the bat-
tery; never charge or discharge it at excessive cur-
rents, overcharge or deep-discharge it, or charge it
with reversed polarity.
If you charge the battery outside the transmitter,
place it on a heat-resistant, non-flammable, non-
conductive surface, and do not leave it on charge un-
supervised.
Do not make modifications of any kind to the battery.
Never solder or weld directly to the cells.
If treated incorrectly there is a risk of fire, explosion
and corrosive burns. Suitable extinguishing agents:
water, CO , sand.
2
Escaped electrolyte is corrosive!
Do not allow it to contact your skin or eyes.
In an emergency wash the material off using plenty of
water, and seek medical attention without delay.
8.2. Charging the transmitter battery
(slow charging)
The battery can be left in the transmitter for charging.
Basically we recommend that you recharge the battery
at the "normal" rate (1/10 C rate) overnight (e.g. plug-
type 230V / 50Hz charger, # 14 5537, charge current:
150 mA). This method of charging avoids damage to the
transmitter electronics and battery, and presents fewer
problems than other methods.
!
Note:
Never connect the transmitter to a charger without a
battery installed!
High output voltages may be present in battery charg-
ers when no battery is connected. These voltages can
damage the transmitter.
How to charge the battery correctly:
1. Switch off the transmitter.
2. Connect the charge lead to the battery charger.
Note the correct polarity (!):
red plug = positive terminal (+)
blue / black plug = negative terminal (-)
Incorrect polarity will ruin the battery!
(overheating, escape of corrosive electrolyte, burst
cells)
3. Connect the charge lead to the transmitter.
Here again: check polarity carefully. Genuine MUL-
TIPLEX transmitter charge leads are polarised
(unless you force them in the wrong way round!)
Charge process commences
4. If you use the normal or 1/10 C charge process you
must terminate the charge manually.
For a discharged battery the charge period can be
calculated using the following formula:
C harge time
Example: battery capacity 1500 mAh
"Normal charging" means that the battery is
charged at a current of 0.1 C (min. 0.05 / max. 0.2 C
= 75 mA to 300 mA).
With a charge current of 150 mA (i.e. 0.1 C) the
charge period is: (1500 mAh * 1.4) / 150 mA = 14 h.
The charge process should be terminated after this
time, if not before.
If the battery was not fully discharged beforehand,
the charge period is correspondingly shorter.
!
If the battery becomes too hot to touch whilst on
charge, interrupt the charge process immediately.
5. At the end of the charge, first disconnect the
transmitter or battery from the charger, and then
disconnect the charger from the power source
(mains socket).
After the charge the battery management system may
inform you that you need to correct the battery's state
of charge ( 13.1.3.).
Page 8
C apacity [ mAh ] 1 * 4 ,
[ h ]
C harge current [ mA ]