Fusion Battery Charger L702B User Manual

Emperor L702B Pro  
Thank you for purchasing this Fusion Emperor L702B Pro charger. We are sure you  
will be pleased with its performance and features. In order to ensure that you obtain  
the maximum benefit from its operation, please read the instructions carefully.  
OpErAting instructions  
Please keep for Future Reference  
 
SPECIFICATIONS  
MODE  
TYPE  
SPEC  
Power Supply  
Battery Types  
Operating Modes  
DC Input  
11-28V DC  
NiCd, NiMH, LiPo, LiIon, LiFe, Pb  
Charge, Discharge, Cycle  
Charge, Discharge, Store  
Automatic charge  
Normal charge  
NiCd, NiMH  
LiPo, LiIon, LiFe, Pb  
Charge (NiCd, NiMH)  
Operation function  
Linear charge  
RE-FLEX charge  
CC-CV charge  
Charge (LiPo,LiIon,LiFe,Pb)  
Discharge  
Automatic discharge (NiCd, NiMH)  
Normal discharge (NiCd, NiMH)  
Linear discharge  
60% Capacity  
Store Mode  
Number of Cells  
Charge Current  
NiCd, NiMH  
LiPo, LiIon, LiFe  
Pb  
1 ~ 18 Cell  
1 ~ 7 Cell  
1 ~ 12 Cell  
NiCd , NiMH  
0.1A ~ 20.0A (max 300W)  
0.1A ~ 20.0A (max 300W)  
0.1A ~ 10.0A (max 50W)  
0.1 ~ 1.1V/cell  
LiPo, LiIon, LiFe  
NiCd , NiMH, LiPo, LiIon, LiFe, Pb  
NiCd, NiMH  
Discharge Current  
Discharge Voltage  
LiPo, LiIon, LiFe  
NiCd, NiMH  
2.5 ~ 3.7V/cell  
Trickle Current  
Off ~ 500mA  
Auto Mode (Charge Current/20)  
1~10 Cycles  
Cycle Mode  
Cycle time  
Cycle delay  
Cycle direction  
NiCd  
(NiCd/NiMH only)  
1~30 min  
C>D / D>C  
5 ~ 25mV/cell  
Peak sensitivity  
NiMH  
0, 3 ~ 15mV/cell  
10 ~ 60°C  
50 ~ 150°F  
Temperature Sensor  
Centigrade  
Fahrenheit  
NiCd , NiMH  
LiPo, LiIon, LiFe  
Max charge capacity  
(safety timer)  
10 ~ 150%  
10 ~ 120%  
Start peak delay timer NiCd , NiMH  
1 ~ 20 min  
Memory  
Memory number  
20 Memories (per channel)  
20 ~ 300mins & Off  
1 ~ 5C  
Safety timer  
NiCd , NiMH, LiPo, LiIon, LiFe, Pb  
LiPo, LiIon, LiFe  
Charge rate limit  
TCS Capacity  
TCS END action  
LiPo, LiIon, LiFe  
10 ~ 100%  
LiPo, LiIon, LiFe  
Continue, Stop  
2
 
 
GENERAL OPERATION  
OUTPUT BATTERY CONNECTIONS  
The Emperor L702B Pro has two sets of outputs on the front of the charger, channel  
1 is on the left and channel 2 on the right. Each channel has two 4mm banana  
sockets, a 7 cell balance port and a temperature sensor input.  
You will need an appropriate charge lead to suit the specific connector on your  
battery. Connect this charge lead to the 4mm output sockets on the charger channel  
you want to use, with the positive (+) lead connected to the red socket and the  
negative (-) lead to the black socket.  
Only connect the battery to the charge lead AFTER the charge lead has  
been connected to the charger, as the connectors on the charge lead could  
touch together and cause the battery to short circuit.  
When charging a Lithium pack, make sure that the balance lead is connected to the  
charger. The charger has a ‘JST-EH’ type balance port, but also comes with balance  
adaptor boards for JST-XH and Flight Power/Thunder Power. To use an adaptor  
board, connect the supplied balance adaptor board lead to the charger and then  
connect the board that works with your battery balance connector. Optional adaptor  
boards for Polyquest & 4/2mm plug car packs are also available.  
If the main battery power leads ONLY are connected to the output banana sockets,  
without connecting the balancing connector to the balancing port on the charger, the  
charger will charge or discharge the connected Lithium pack without balancing it.  
We always recommend balancing a Lithium pack, because some cells may  
retain more capacity than others, so over time the pack can become  
unbalanced. If an unbalanced pack is then used, some of the cells will  
exceed their maximum voltage when charged and others their minimum  
voltage when discharged, which causes damage to the cells. When a  
Lithium cell is overcharged, it can cause damage and in extreme cases can  
cause a fire.  
3
 
   
TURNING ON & SETTING THE INPUT POWER  
The input power leads on the Emperor are supplied with 4mm  
gold banana type connectors (with optional crocodile clips)  
that should be connected directly to a suitable 11-28V DC  
power source, ensuring that the black connector is connected  
to the negative () and the red to the positive (+).  
Power  
On  
When the charger is initially connected to a power source, it  
will ask you to confirm the maximum input power available  
from the power source and allow you to adjust the percentage  
of this power available to each output on the charger. This  
allows the Emperor L702B Pro to deliver the highest available  
power to each of the charger outputs (channels), without  
overloading the power source.  
Emperor L702B Pro v1  
<INPUT POWER SETTING>  
VOLTAGE  
: 12.0V  
: 20.0A  
CURRENT  
1OUTPUT RATE: 50%  
2OUTPUT RATE: 50%  
Each line is selected by pressing the ‘Inc’ and ‘Dec’ buttons to  
ESC  
move the selection arrow up and down.  
To edit a value press the ‘Enter’ button to highlight the selected value. To increase or  
decrease the highlighted value, press the ‘Inc’ or ‘Dec’ buttons. Once the desired  
value has been selected, press the ‘Enter’ button again to store this value.  
Once the correct parameters have been entered press the ‘Esc’ button to continue to  
the main screens.  
THE DISPLAY  
The display is broken up into 2 halves. The top half of the display shows the first  
channel (Ch1) and the bottom shows the second (Ch2).  
The selected channel is shown in normal text and the other in reversed out text.  
Ch1 Selected  
CH2 Selected  
11]LiPo 3S 2200mAh  
CHG. : 2.1A 4.20V/C  
DCHG. :10.0A 3.0V/C  
STORE MODE START  
0]NiMH 6S 3300mAh  
11]LiPo 3S 2200mAh  
CHG. : 2.1A 4.20V/C  
DCHG. :10.0A 3.0V/C  
STORE MODE START  
0]NiMH 6S 3300mAh  
Channel  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
Pressing the ‘Channel’ button (at any time) selects the other channel (charger).  
4
 
   
MENU STRUCTURE  
The menu system in the Emperor L702B is summarized in the flow chart below. To  
move around the screens press the buttons as shown on the flow chart.  
Where a line selection arrow is shown on the left of a line, the ‘Inc’ and ‘Dec’ buttons  
can be used to move the selection arrow up or down. Pressing the ‘Enter’ button  
highlights each value on a line so that it can be changed. Pressing the ‘Esc’ button  
whilst a value is highlighted exits the editing and moves back to the line selection  
again.  
Mode  
Press and hold  
the Mode button  
whilst connecting  
the power.  
Power  
On  
Power  
On  
System Menu  
LCD CONTRAST: 10  
Emperor L702BP  
v1  
LCD BACKLIT :  
ON  
ABCDEFGHIJKLMNOPQ  
RSTUVWXYZ abcdefg  
hijklmnopqrstuvwx  
yz 0123456789 -.  
ESC  
<INPUT POWER SETTING>  
VOLTAGE  
: 12.0V  
: 20.0A  
CURRENT  
1OUTPUT RATE: 50%  
2OUTPUT RATE: 50%  
ESC  
Memory Screen  
User Settings  
Data View  
Cycle View  
Balancer View  
11]LiPo 3S 2200mAh  
CHG. : 2.1A 4.20V/C Mode  
DCHG. :10.0A 3.0V/C  
STORE MODE START  
TEMP.MODE  
:
°C  
ON  
INPUT VOLT: 13.200V  
OUTPUT VOLT: 11.123V  
BAT. TEMP. : No.Sens  
[ 1]CAPACITY VOLTAGE  
3S=11.845V 11S=3.944V  
1
C:  
D:  
Mode  
Mode  
Mode  
BUTTON SOUND :  
0mAh  
0mAh  
0.000V  
0.000V  
33.95V  
3
FINISH SOUND : 5sec  
3.94V  
1
MELODY  
:
1
PEAK TEMP. :  
0.0°C  
8mV  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
ESC  
ESC  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
ESC  
ESC  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
INC  
INC  
Press the ‘Inc’ or ‘Dec’  
button to change the  
cell number.  
INC  
Press the ‘Inc’ or ‘Dec’ button  
to view the charge/discharge  
statistics for previous cycles  
DEC  
DEC  
DEC  
CUT.TEMPER. :  
55°C  
120%  
[ ]CAPACITY VOLTAGE  
3S=11.845V 31S=3.952V  
2
C:  
D:  
MAX.CAPACITY:  
0mAh  
0mAh  
0.000V  
0.000V  
33.95V  
3
SAFETY TIMER: 120min  
3.94V  
1
CHARGE RATE :  
2C  
8mV  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
INC  
DEC  
TCS CAPACITY:  
100%  
TCS END ACT : CONTI.  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
5
 
 
BATTERY MEMORY SCREEN  
The battery memory screen is the main functional screen for this charger. It is used  
to store specific battery, charge, discharge and safety parameters, as well as being  
used to initiate charging, discharging, cycling/store mode functions.  
Battery Type  
Number of Cells  
(in series)  
Battery Capacity  
Memory Number  
11]LiPo 3S 2200mAh  
CHG. : 2.1A 4.20V/C  
Line selection  
DCHG. :10.0A 3.0V/C  
arrow  
STORE MODE START  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
To edit the battery parameters, make sure the selection arrow is on the top line and  
press the ‘Enter’ button to highlight the memory number. Using the ‘Inc’ or ‘Dec’  
buttons, the selected memory (0~19) can be changed. By default each memory is  
populated with a sample configuration, but these can be adjusted to suit your  
requirements.  
Pressing the ‘Enter’ button again selects the Battery Type for the selected memory.  
The battery type can be changed using the ‘Inc’ and ‘Dec’ buttons.  
The available battery types are:-  
NiCd  
LiPo  
LiFe  
Nickel Cadnium (1.2V/cell)  
Lithium Polymer (3.7V/cell)  
Lithium Ferrite (3.3V/Cell)  
NiMH Nickel Metal Hydride (1.2V/cell)  
LiIo  
Pb  
Lithium Ion  
Lead Acid  
(3.6V/cell)  
(2V/cell)  
Pressing the ‘Enter’ button again highlights the number of cells (in series), which can  
be adjusted using the ‘Inc’ and ‘Dec’ buttons. If you are unsure of the number of cells  
in your battery pack, then this can be calculated by dividing the total battery voltage  
by the individual cell voltage.  
Pressing the ‘Enter’ button again selects the battery capacity setting, then back to  
the line selection arrow.  
It is very important that the correct battery parameters are entered, as  
incorrect values could cause the charger to seriously damage your battery  
which could result in a fire!  
Pressing the ‘Dec’ button whilst nothing is highlighted moves the line selection arrow  
down.  
6
 
 
LITHIUM FUNCTIONS AND PARAMETERS  
When a Lithium type battery is selected, the following functions and parameters are  
available. The 2nd and 3rd pages (shown below) are accessed by moving the line  
selection down arrow off the bottom of the page.  
11]LiPo 3S 2200mAh  
CHG. : 2.1A 4.20V/C  
Charge  
Discharge  
DCHG. :10.0A 3.0V/C  
Page 1  
Store Mode  
STORE MODE START  
Cut-off Temperature  
CUT.TEMPER. :  
55°C  
120%  
Cut-off when x% of  
capacity is reached.  
MAX.CAPACITY:  
Cut-off if maximum  
time is reached  
SAPFETYaTgIMEeR: 1220min  
CHARGE RATE :  
2C  
Max Charge Rate  
TCS CAPACITY:  
90%  
What should happen  
when the TCS  
capacity is reached?  
TCS (Terminal  
Capacity Selection)  
TCS END ACT : CONTI.  
Page 3  
CHG.’ – CHARGE  
This line shows the charge current and the maximum cell voltage which can be edited  
by press the ‘Enter’ button to highlight the parameter, then the ‘Inc’ and ‘Dec’  
buttons to edit the value. The default charge current for a Lithium battery is set to  
1C (1 x capacity), however this can be adjusted from 0.1 to 20 Amps.  
N.B. For safety the charge current is limited to the capacity x charge rate (see  
Maximum Charge Rate setting). If you want to increase the charge current above 2C,  
you must first increase the maximum charge rate before you can increase the charge  
current.  
Normally, the maximum cell voltage should be left at the default value (LiPo=4.2V,  
LiIo=4.1V & LiFe=3.7V), but in very cold weather a Lithium Polymer pack can be  
overcharged at 4.2V, so reducing the maximum charge voltage to 4.1V can increase  
the life of your pack.  
Press the ‘Enter’ button for 2 seconds on this line to start the charge.  
DCHG.’ - DISCHARGE  
This shows the discharge current and the cut-off voltage per cell. Pressing the ‘Enter’  
button for 2 seconds with this line selected will start the discharge.  
STORE MODE START  
It is recommended that Lithium batteries are not left in a fully charged or discharged  
state for long periods of time, especially when stored in a cold environment.  
7
 
 
Therefore, store mode will charge or discharge your pack to around a 60% charged  
state to help extend the life of your packs.  
CUT.TEMPER. - CUT-OFF TEMPERATURE  
When used with the optional temperature sensor, a safety cut-off temperature can  
be set, so that charging or discharging is terminated automatically if the temperature  
sensor detects the battery temperature rising above the selected value.  
MAX. CAPACITY’ – MAXIMUM CAPACITY  
The maximum capacity setting is used to terminate a charge if the charger exceeds  
the selected percentage of the battery capacity.  
SAFETY TIMER  
The safety timer can be used to terminate a charge if it is not completed within the  
selected time period.  
CHARGE RATE’ – MAXIMUM CHARGE RATE  
The charge rate allows you to set the maximum charge rate for the pack being  
charged. The default is 2C, but some newer packs can allow up to 5C (5 x capacity),  
so increasing this value allows the user to select a higher charge current in the charge  
parameters.  
TCS CAPACITY  
TCS (Terminal Capacity Selection) allows the user to select a capacity at which the  
charger will beep or stop charging.  
Lithium batteries are charged using a constant current then constant voltage (CC-CV),  
so when the cells reach their maximum voltage, the charge current is slowly reduced  
until the charge is complete. Because the charge current is being reduced, the last  
10-30% of the charge takes proportionally longer than the first part.  
Therefore, the TCS capacity can be set to warn the user when the selected capacity is  
reached, which can be useful if the user does not require a full charge in the battery,  
so it can be used sooner.  
TCS END ACT’ – TCS END ACTION  
When the selected TCS capacity is reached, the charger can be set to continue the  
charge and warn the user that the TCS capacity has been reached or the charger can  
stop the charge.  
8
 
NICD/NIMH FUNCTIONS AND PARAMETERS  
05]NiMH 6S 3000mAh  
Charge  
CHG. : 3.0A  
8mV/C  
Discharge  
DCHG. : 3.0A 0.8V/C  
Page 1  
Cycle  
CYCLE : CD 1x 10m  
Cut-off Temperature  
CUT.TEMPER. :  
55°C  
150%  
Cut-off when x% of  
capacity is reached.  
MAX.CAPACITY:  
Do not detect peaks  
for x mins.  
PEPAK DaELgAY e: 2  
3min  
TRI CURRENT : 100mA  
Trickle Charge Rate  
SAFETY TIMER: 120min  
Cut-off if maximum  
time is reached  
Page 3  
CHG.’ – CHARGE  
This line shows the charge current and the delta-peak cut-off voltage. These values  
can be edited by pressing the ‘Enter’ button to highlight the parameter, then the ‘Inc’  
and ‘Dec’ buttons to edit the value.  
When charging NiCd and NiMH batteries, most chargers detect when the pack is fully  
charged by using a method called delta-peak. This monitors the voltage of the pack  
which increases as the pack becomes charged. When the pack is fully charged the  
pack starts to get warm and the voltage then starts to drop. The delta-peak cut-off  
voltage is the voltage drop (per cell) that is detected before the charger will stop the  
charge. The default delta-peak voltage setting for NiMH packs is 5mV/cell and for  
NiCd is 8mV/cell.  
To start the charge function, press the ‘Enter’ button for 2 seconds with this line  
selected. The screen will then move to the charge type screen (see page 12).  
n.b. The selected charge currents will not be used if ‘Automatic’ charge type is  
selected.  
DCHG.- DISCHARGE  
The discharge line shows the discharge current and the discharge cut-off voltage (per  
cell). The default cut-off voltage for NiCd/NiMH cells is 0.8V/cell.  
Pressing the ‘Enter’ button for 2 seconds with this line selected will move to the  
discharge type selection screen.  
n.b. The selected discharge current will not be used if ‘Automatic’ discharge type is  
selected.  
9
 
 
CYCLE  
The cycle mode allows the user to both charge and discharge a battery a number of  
times, in order to bring it back to peak performance.  
Dependant on the final charge state required, you have the options to discharge then  
charge (D>C) or charge then discharge (C>D) the pack. In addition, the number of  
cycles and the delay between charging or discharging can be set.  
n.b. When cycling a battery, the charger will use Automatic charge and discharge  
currents.  
To start the Cycling you pack, hold the ‘Enter’ button down for 2 seconds.  
MAX. CAPACITY’ – MAXIMUM CAPACITY  
The maximum capacity setting is used to terminate a charge if the charger exceeds  
the selected percentage of the battery capacity.  
PEAK DELAY’ – START PEAK DELAY  
When charging a NiCd or NiMH type pack using delta-peak cut-off, the charger is  
looking for the pack voltage to peak and then drop off. However, some packs can  
give false peaks soon after the charge is commenced. Therefore, the start peak delay  
function overrides the peak detection for a selected number of minutes to stop any  
false peaks being detected. The default setting is 3 minutes.  
‘TRI. CURRENT’ - TRICKLE CHARGE CURRENT  
With NiCd and NiMH type batteries, it is recommended that the pack is trickle  
charged after the main charge has completed, so that the battery is kept fully  
charged and is ready to be used. Therefore, we suggest setting the trickle charge  
current to around 10% of the pack capacity.  
SAFETY TIMER  
The safety timer is used to terminate a charge if it is not completed within the  
selected time.  
10  
 
CHARGING  
With the selection arrow on the CHG line, select the correct charge rate and  
maximum cell/peak voltage for the battery being charged, then press and hold the  
CHARGING A LITHIUM PACK  
In the flow chart below, we have shown an example of how to charge a 2S (7.4V)  
2200mAh LiPo pack at 2.2A.  
Press and hold the Enter  
button for 2 seconds to  
start charging.  
11]LiPo 2S 2200mAh  
CHG. : 2.2A 4.20V/C  
DCHG. : 2.2A 3.0V/C  
STORE MODE START  
[ LiPo ] CHARGE  
*** BATTERY ***  
*** CHECK ***  
Press the ‘Inc’ or  
‘Dec’ button to  
change the cell  
number.  
ENTER  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
C-TCS: 15%  
0:00:12  
10mAh  
C-TCS: 15%  
0:01:25  
C-TCS: 15%  
0:02:59  
2S= 7.687V 1S=3.845V  
1
CAPACITY  
VOLTAGE  
CURRENT  
:
:
:
INPUT VOLT : 14.222V  
Mode  
13.84V  
2
BAT. TEMP. :  
PEAK TEMP. :  
BATTERY RES:  
22.1°C  
22.1°C  
30m  
Mode  
Mode  
7.612V  
2.20A  
PEAK VOLT :  
AVG. VOLT :  
7.612V  
0.000V  
3.84V  
1
5mV  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
DCHG. : 5.0A 0.8V/C  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
ESC  
ESC  
ESC  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
ESC  
Press and hold  
the ‘ESC’ button  
for 2 seconds to  
stop the charge.  
STOP  
CHARGE  
With the line selection arrow on the ‘CHG.’ line, check the correct charge current and  
cell voltage is selected, then press and hold the Enterbutton for 2 seconds to start  
the charge.  
As shown in the flow chart above, pressing the ‘Mode’ or ‘Esc’ buttons at any stage  
whilst charging moves through the different screens giving detailed information  
about the charge.  
Pressing the ‘Esc’ button for 2 seconds at any stage will stop the charge.  
11  
 
   
CHARGING A NICD/NIMH PACK  
In the flow chart below, we have shown an example of how to charge a 6 cell (7.2V)  
3000mAh NiMH pack at 4.5 amps using a ‘Normal’ charge type.  
Press the ‘Inc’ or  
‘Dec’ buttons to  
change the  
Press and hold  
the Enter button  
for 2 seconds to  
start.  
Press and hold  
the Enter button  
for 2 seconds to  
start the charge.  
INC  
DEC  
charge type.  
1]NiMH 6S 3000mAh  
CHG. : 4.5A 5mV/C  
[ NiMH ] CHARGE  
1]NiMH 6S 3000mAh  
CHG. : 4.5A 5mV/C  
*** BATTERY ***  
*** CHECK ***  
DCHG. :10.0A 0.8V/C  
CYCLE : CD 1x 10m  
0]NiMH 6S 3300mAh  
CHARGE <NORMAL>  
ENTER  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
ENTER  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
C-AUTOMATIC  
CAPACITY :  
0:01:12  
15mAh  
C-AUTOMATIC  
0:04:02  
C-AUTOMATIC  
BAT. TEMP. :  
0:05:18  
22.1°C  
22.1°C  
100m  
INPUT VOLT : 14.222V  
Mode  
Mode  
VOLTAGE  
CURRENT  
:
:
8.212V  
4.10A  
PEAK VOLT :  
AVG. VOLT :  
8.922V  
0.000V  
PEAK TEMP. :  
BATTERY RES:  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
ESC  
ESC  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
ESC  
Press and hold  
the ‘ESC’ button  
for 2 seconds to  
stop the charge.  
STOP  
CHARGE  
After selecting charge for a NiCd or NiMH pack, you are given the option to select  
four different charge types. These are:-  
This is a fully automatic charge that will ignore the selected charge parameters. The  
Automatic  
charger will monitor the battery by stopping the charge for a few seconds every minute  
and then automatically adjust the charge current to make sure the best charge current  
is delivered to your pack.  
The charger will charge the pack at the selected charge current, but will stop charging  
for five seconds every minute. This allows for better peak detection.  
Normal  
The selected current is maintained throughout the charge.  
Linear  
Reflex (sometimes know as ‘Burp’ or ‘reverse pulse’) charging is where the charger  
Re-Flex  
applies a reverse charge of 4 times the charge current for 4/1000 of every second.  
Reflex charging is believed to help remove oxidizing gas bubbles from the cell plates in  
the battery, allowing it to charge more efficiently. Reflex charging is not always  
recommended for NiMH cells, so please check with your battery manufacturer first.  
12  
 
 
In this example a ‘Normal’ charge is selected and then the ‘Enter’ button is pressed  
for 2 seconds to start the charge.  
As shown in the flow chart, pressing the ‘Mode’ or ‘Esc’ buttons at any stage moves  
through the different screens giving detailed information about the charge.  
Pressing the ‘Esc’ button for 2 seconds at any stage will stop the charge.  
OTHER SCREENS  
As shown in the flowchart below, the other screens are accessed using the ‘Mode’  
and ‘Esc’ buttons.  
Memory Screen  
User Settings  
Data View  
Cycle View  
Balancer View  
11]LiPo 3S 2200mAh  
CHG. : 2.1A 4.20V/C Mode  
DCHG. :10.0A 3.0V/C  
STORE MODE START  
TEMP.MODE  
:
°C  
ON  
INPUT VOLT: 13.200V  
OUTPUT VOLT: 11.123V  
BAT. TEMP. : No.Sens  
[ ]CAPACITY VOLTAGE  
3S=11.845V 11S=3.944V  
1
C:  
D:  
Mode  
Mode  
Mode  
BUTTON SOUND :  
0mAh  
0mAh  
0.000V  
0.000V  
33.95V  
3
FINISH SOUND : 5sec  
3.94V  
1
MELODY  
:
1
PEAK TEMP. :  
0.0°C  
8mV  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
ESC  
ESC  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
DCHG. : 5.0A 0.8V/C  
ESC  
ESC  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
CYCLE : CD 1X 10m  
USER SETTINGS SCREEN  
This screen is used to set the temerature mode and  
charger sounds for each charger channel. We  
recommend selecting a different melody for each  
channel (charger), so you can easily identify which  
channel has completed it’s operation.  
TEMP.MODE  
:
°C  
ON  
BUTTON SOUND :  
FINISH SOUND : 5sec  
MELODY  
:
1
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
DATA VIEW SCREEN  
The data view screen shows both the input and output  
voltages, together with the current and peak  
temperature readings for each channel.  
INPUT VOLT: 13.200V  
OUTPUT VOLT: 11.123V  
BAT. TEMP. : No.Sens  
PEAK TEMP. :  
0.0°C  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
CYCLE VIEW  
The cycle view screen shows the charge and discharge  
data for the most recent pack to be charged or  
discharged.  
[ ]CAPACITY VOLTAGE  
1
C:  
D:  
0mAh  
0mAh  
0.000V  
0.000V  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
13  
CYCLE : CD 1X 10m  
 
       
If the cycle function has been used (NiCd/NiMH only), then pressing the ‘Inc’ button  
shows the charge and discharge statistics for the previous 10 cycles.  
BALANCER VIEW  
When a Lithium pack is connected to the charger, the balancer screen shows the  
balance statistics for the pack and allows the user to read off the individual cell  
voltages.  
Press the ‘Inc’ or ‘Dec’  
button to select a  
specific cell to view.  
Number of cells and  
total pack voltage  
Voltage difference  
between the highest  
and lowest cells  
3S=11.845V 11S=3.944V  
3.95V  
Highest and lowest  
voltage cells  
3
3.94V  
1
8mV  
0]NiMH 6S 3300mAh  
CHG. : 3.3A  
5mV/C  
DCHG. : 5.0A 0.8V/C  
CYCLE : CD 1X 10m  
SYSTEM MENU  
The system menu is accessed by holding down the ‘Mode’ button and connecting the  
power. In this menu you can adjust the LCD parameters and set the user name that  
appears on the welcome screen.  
Press and hold the Mode button  
whilst connecting the power.  
Mode  
LCD CONTRAST: 10  
LCD BACKLIT :  
ON  
Power  
On  
ABCDEFGHIJKLMNOPQ  
RSTUVWXYZ abcdefg  
hijklmnopqrstuvwx  
yz 0123456789 -.  
ESC  
Emperor L702BP  
v1  
To edit the username, press the ‘Dec’ button to move down the line selection arrow  
to the username line. When on this line selection changes to character selection, so  
using the ‘Inc’ and Dec’ buttons select the character to be changed, and then press  
the ‘Enter’ button to highlight the character. Using the ‘Inc’ and ‘Dec’ buttons to  
select the new character and press the ‘Enter’ button when finished. Continue this to  
change each character. When you have finished, press the ‘Esc’ key to exit this menu.  
FACTORY SETTINGS  
To reset the charger to the original factory settings, press and hold the ‘Esc’ button  
when connecting the power.  
14  
 
     
ERROR MESSAGES  
The Emperor L702B Pro has a number of error and warning messages that are  
designed to advise the user of any problems.  
When applicable, pressing the ‘Esc’ button clears the message.  
SAFETY PRECAUTIONS  
DO NOT attempt to charge incompatible types of rechargeable batteries. This  
charger is designed to only charge and discharge Nickel-Cadmium, Nickel-Metal  
Hydride, Lithium-Ion, Lithium-Polymer, LiFePO4 and Lead-Acid batteries.  
• Make sure you place the charger on a firm level surface for charging.  
DO NOT attempt to charge batteries at excessive fast charge currents. Check with  
your battery manufacturer for the maximum charge rate applicable to your battery.  
DO NOT use automotive type battery chargers to power the charger.  
DO NOT leave the charger unattended while charging. Disconnect the battery and  
remove input power from charger immediately if the charger becomes hot. Allow the  
charger or battery to cool down before reconnecting.  
DO NOT allow water, moisture or foreign objects into the charger.  
DO NOT place the battery or charger on or near a flammable object while in use.  
Keep away from carpets, cluttered workbenches, etc.  
DO NOT cover the air intake holes on the charger as this could cause the charger to  
overheat.  
Connect the charge lead to the charger BEFORE connecting to the battery.  
DO NOT disassemble the charger.  
• This unit is not intended for use by young children or infirm persons unless they  
have been adequately supervised by a responsible person to ensure that they can  
use it safely.  
• Young children should be supervised to ensure that they do not play with the  
charger.  
DO NOT attempt to charge non-rechargeable batteries.  
15  
 
   
Lead-Acid batteries must be placed in a well ventilated area when charging.  
DO NOT attempt to charge whilst the input 12 volt battery is being charged, as the  
voltage supplied to the charger may be too high.  
LITHIUM ION/POLYMER BATTERY - SAFETY WARNINGS  
Ensure that the charger and battery are placed on a non-flammable surface whilst  
charging.  
NEVER charge a Lithium ION/Polymer/Fe battery inside a vehicle whatever the  
circumstances.  
ALWAYS ensure that the charger is correctly set for the battery being charged,  
checking both voltage and capacity. Be particularly careful if using a series/parallel  
battery pack, or if using packs of different specifications with the same charger.  
NEVER charge at a rate higher than that recommended by the cell manufacturer, this  
can be very dangerous.  
DO NOT leave Lithium ION/Polymer/Fe batteries unattended whilst they are  
charging. Monitoring the batteries during charging is very important.  
ALWAYS monitor the temperature of the battery being charged every few minutes. If  
the battery becomes hot to the touch, disconnect it from the charger immediately  
and allow to cool. DO NOT recommence charging until the battery and charger have  
been checked for compatibility and the charger settings have been confirmed as  
being correct.  
In the unlikely event of the Lithium ION/Polymer/Fe battery catching fire DO NOT use  
water to attempt to put the fire out, instead use sand or a fire extinguisher designed  
for electrical fires.  
When used correctly, Lithium ION/Polymer/Fe battery packs are as safe as any other  
type of rechargeable battery pack. However they do require different charge regimes  
to the longer established Nickel Cadmium and Nickel Metal Hydride technologies and  
have the potential of catching fire if severely mistreated.  
If Lithium Polymer battery packs are short-circuited or severely over-charged  
elemental Lithium may be deposited internally, and if the battery pouch is damaged  
this can escape from inside the battery. If this occurs a fire may be caused, as  
elemental Lithium is highly reactive when exposed to water or moisture, producing  
flammable hydrogen gas and corrosive fumes. Elemental Lithium is not produced  
16  
 
 
unless the battery pack is severely mistreated, so in normal usage there is no  
likelihood of explosion or fire.  
Lithium Ion/Polymer battery packs must NEVER be discharged below 3 volts per cell  
(Li-Fe 2.0V) as this will result in damage to the cells. If the voltage is allowed to drop  
below 3 volts per cell the battery voltage may seem to recover following a charge,  
but the battery may not then give its full nominal capacity and a reduction in  
performance is likely allowing the voltage to drop below 3 volts per cell will  
invalidate all warranty claims.  
NEVER charge Lithium Polymer battery packs at greater than 4.2V per cell, Lithium  
Ion at 4.1V volts per cell or LiFe at greater than 3.7V per cell as this will cause  
irreversible damage to the cells and will invalidate all warranty claims.  
NEVER charge Lithium battery packs above their maximum charge rate. This can  
damage the pack and can be dangerous. Generally, Lithium Polymer packs should not  
be charged above 2C (2 x Capacity). However, some newer packs do allow charging at  
up to 5C, but charging at these higher rates will reduce the life of the pack.  
e.g Pack of 2500mAh capacity : 2C = 5000mAh = 5A max charge current.  
DO NOT use discharge rates in excess of those specified with the battery pack as this  
will result in a significant drop in voltage under load and will dramatically reduce the  
number of charge/discharge cycles the battery pack will give.  
If disposing of Lithium battery packs ensure that the pack is fully discharged by using  
a light bulb, electric motor or similar to completely discharge the pack.  
DO NOT allow any Lithium battery pack to short-circuit as this is likely to  
result in a minor explosion and consequent fire.  
BEFORE charging any Lithium battery packs they should be closely inspected for any  
damage, such as punctures in the sleeving or if the battery has swollen or expanded  
in size. If any such damage is detected DO NOT charge, even if the battery otherwise  
appears to be brand new.  
Before commencing charging ALWAYS double check the settings on the charger to  
ensure it is set correctly for the battery pack to be charged. Using the wrong settings  
is likely to result in damage to the battery pack being charged and could result in the  
battery catching fire.  
17  
 
 
www.logicrc.com  
Logic RC Limited  
14 Hartham Lane  
Hertford  
SG14 1QN  
United Kingdom  
rev. 11-2009  
1
 

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