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Instructions
Seite 13
ENGLISH
8. The transmitter battery
The ROYALevo is powered by a high-quality ready-
made battery pack consisting of 6 NiMH cells (Nickel-
Metal-Hydride) of the AA size. NiMH cells offer a much
higher energy density (capacity : weight) than NiCd
(Nickel-Cadmium) cells, and therefore provide longer
operating times for the same weight. They do require
slightly different handling and greater care, especially
when charging.
8.1. Battery management in the ROYALevo
8.1.1. This is what we have already
Battery voltage display
Most transmitters show the battery voltage in graphic
or numeric form.
Battery alarm
An audible alarm indicates the voltage falling below the
minimum level. In many transmitters the minimum level
can be set by the user.
Both features are available in the ROYALevo of course.
(Battery alarm Î 13.1.3.)
8.1.2. This is
NEW
The battery management in the ROYALevo monitors
the charge status of the transmiiter battery during all
operating conditions, even when the transmitter is
switched off.
In detail the following happens:
a. during charging
If the thransmitter battery is charged with more
than 50 mA via the charging socket, the charging
current is measured regularly and the charge is cal-
culated. The result is stored in the transmitters
memory..
b. during operation
Also during operation the current is measured and
the drawn charge is calculated and subtracted
from the available charge. In the status display 4
(ÎFehler! Verweisquelle konnte nicht gefun-
den werden..) the remaining battery charge is
shown.
Whenever the RF module is active (red LED flash-
ing), the residual operating time is calculated and
displayed. This figure is shown to give a rough idea
of how long the transmitter can be operated.
c. when the transmitter is switched off
Also if your transmitter „sleeps“ on the shelf, the
battery loses charge by the effect of self-discharge
(approx. 1.5% per day). The battery management
automatically reduces the available charge accord-
ingly.
!
Battery charge an residual values are only intended
as a guide. Tolerances and variations between in-
dividual examples, and the effects of battery main-
tenance schedules, can produce considerable dis-
crepancies.
8.1.3. This is what you must attend
To get battery management display as reliable as possi-
ble, please take care of the following:
a. Correction of th indicated battery charge
The battery management assumes a nominal ca-
pacity of 1500 mAh. After the battery has reached
ist full capacity (more than 5 charge/discharge cy-
cles) the true capacity can be set in the menu:
L , Transmitter parameter: Batt. charge
In steps of 50 mAh you can set the capacity meas-
ured by your charger.
!
If battery voltage of 6.5 V or below is de-
tected, the available charge is set to 0 mAh.
b. Use a suitable charger (Î 8.4.) and charge via
the socket
Only if the battery is charged via the socket the
battery management can work correctly.
c. chargin with constant current (1/10 C)
If the battery will be charged longer than calcu-
lated with the formula in chapter 8.4. the battery
management will limit the available charge at
1500 mAh.
8.2. The battery essentials in brief
x 6 cells, 1500 mAh, NiMH (Nickel-Metal-Hydride)
x Integral thermo-fuse (automatic reset)
x Standard charge (0,1 C = 150 mA) 12 hours
x Fast charge (1 C =1,5 A) = maximum charge current
with automatic cut-off
x Avoid deep-discharging (< 1V/Zelle)
x during longer storage (more than 4 weeks) avoid
temperatures above 30°C
8.3. Safety notes
!
The transmitter battery is responsible for
supplying power to the transmitter, and
therefore makes a vital contribution to the
unit’s operational security. For this reason it is
very important that you observe the following
instructions on charging and maintaining the
battery.
!
The transmitter battery is fitted with a thermo-fuse
with automatic reset which protects the battery
and transmitter from short-circuit, reverse polarity
and excessive current. The transmitter electronics
have no additional fuse! For this reason it is only
permissible to replace the battery with another
genuine MULTIPLEX transmitter pack!
!
Additional safety notes
x Batteries are potentially hazardous, and must be
stored out of the reach of children.
x Before each session check that the battery is in
perfect order. Damaged or defective batteries must
not be re-used.
x Never heat, burn, open or short out batteries. Do
not charge or discharge them at excessive currents,
overcharge or deep-discharge them, nor charge
them with reversed polarity.
x Place batteries on a heat-resistant, non-flammable
and non-conductive surface for charging, and do
not leave them on charge unsupervised.
x Do not make any modifications to the rechargeable
batteries. Never solder or weld direct to the cells.
13


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