iCharger 406DUO User manual

406DUO V1.2.0
Synchronous Balance Charger/Discharger
- 1 -
406DUO User's Manual (V1.2.0)
Index
User Notice...........................................................................................................................................- 4 -
Safety Notes ...............................................................................................................................- 4 -
Copyright....................................................................................................................................- 5 -
406DUO Special Features..........................................................................................................- 5 -
Appearance Parameters..............................................................................................................- 5 -
Specifications .............................................................................................................................- 6 -
Device Introduction ............................................................................................................................- 7 -
406DUO Parts & Interface Introduction....................................................................................- 7 -
406DUO Buttons Function & Icons Description.......................................................................- 7 -
406DUO Standard Accessories ..................................................................................................- 9 -
406DUO Optional Accessories ..................................................................................................- 9 -
The Order of Connection for Charger............................................................................................- 10 -
The Power Input Ground Cannot be Connected with the Output Ground...............................- 10 -
The Order of Connection..........................................................................................................- 10 -
Dual-channel Connection Notes...............................................................................................- 10 -
Connection for Channel Asynchronous Mode...........................................................................................- 10 -
Connection for Channel Synchronous Mode.............................................................................................- 11 -
iCharger Charge/Discharge Setup & Use.......................................................................................- 12 -
Power Supply Setup .................................................................................................................- 12 -
Program Add & Manage...........................................................................................................- 13 -
Run Program for Charger.........................................................................................................- 13 -
Program Running Status...........................................................................................................- 14 -
Error Messages.........................................................................................................................- 15 -
Program Edit.............................................................................................................................- 15 -
LiPo/LiIo/LiFe Battery Charge/Discharge Setup ......................................................................................- 16 -
LiPo/LiIo/LiFe Battery Charge Setup....................................................................................................- 16 -
LiPo/LiIo/LiFe Battery Not Balance Charge Setup .............................................................................- 17 -
LiPo/LiIo/LiFe Battery Balance Charge Setup....................................................................................- 17 -
LiPo/LiIo/LiFe Battery Charge Advanced Setup.................................................................................- 18 -
LiPo/LiIo/LiFe Battery Charge Safety Setup.......................................................................................- 19 -
LiPo/LiIo/LiFe Battery Storage Setup ...................................................................................................- 19 -
LiPo/LiIo/LiFe Battery Discharge Setup ...............................................................................................- 19 -
To Channel Setup.................................................................................................................................- 20 -
LiPo/LiIo/LiFe Battery DischargeAdvanced Setup.............................................................................- 20 -
LiPo/LiIo/LiFe Battery Discharge Safety Setup ..................................................................................- 20 -
LiPo/LiIo/LiFe Battery Cycle Setup......................................................................................................- 21 -
LiPo/LiIo/LiFe Battery Only Balance Feature.......................................................................................- 21 -
NiMH/NiCd Battery Charge/Discharge Setup...........................................................................................- 21 -
NiMH/NiCd Battery Charge Setup ........................................................................................................- 21 -
NiMH/NiCd Battery Charge Advanced Setup .....................................................................................- 22 -
NiMH/NiCd Battery Charge Safety Setup...........................................................................................- 22 -

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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NiMH/NiCd Battery Discharge Setup....................................................................................................- 22 -
NiMH/NiCd Battery Discharge Safety Setup ......................................................................................- 22 -
NiMH/NiCd Battery Cycle Setup ..........................................................................................................- 23 -
Pb Battery Charge/Discharge Setup...........................................................................................................- 23 -
Pb Battery Charge Setup........................................................................................................................- 23 -
Pb Battery Charge Advanced Setup .....................................................................................................- 23 -
Pb Battery Charge Safety Setup...........................................................................................................- 24 -
Pb Battery Discharge Setup....................................................................................................................- 24 -
Pb Battery Cycle Setup ..........................................................................................................................- 24 -
NiZn Battery Charge/Discharge Setup ......................................................................................................- 24 -
NiZn Battery Charge Setup....................................................................................................................- 24 -
NiZn Battery Not Balance Charger Setup............................................................................................- 24 -
NiZn Battery Balance Charge Setup....................................................................................................- 24 -
NiZn Battery Charge Advanced Setup.................................................................................................- 25 -
NiZn Battery Charge Safety Setup.......................................................................................................- 25 -
NiZn Battery Discharge Setup ...............................................................................................................- 25 -
To Channel Setup.................................................................................................................................- 25 -
NiZn Battery Discharge Advanced Setup ............................................................................................- 25 -
NiZn Battery Discharge Safety Setup..................................................................................................- 25 -
NiZn Battery Cycle Setup......................................................................................................................- 25 -
406DUO Parameters Setup..............................................................................................................- 26 -
406DUO Parameters Setup ......................................................................................................- 26 -
Charger Setup ............................................................................................................................................- 26 -
Temp. & Fans Setup...............................................................................................................................- 26 -
Beep Tone Setup.....................................................................................................................................- 27 -
LCD Setup..............................................................................................................................................- 27 -
Output Power Setup ...............................................................................................................................- 27 -
Power Supply Setup...............................................................................................................................- 28 -
Save & Load Configuration Setup.........................................................................................................- 28 -
Communication Settings........................................................................................................................- 29 -
Language Setup......................................................................................................................................- 29 -
Calibration..............................................................................................................................................- 30 -
Extra Function ...........................................................................................................................................- 31 -
Log Files Manage...................................................................................................................................- 31 -
Servo Test...............................................................................................................................................- 31 -
Pulse Measurement ................................................................................................................................- 33 -
USB & SD Card Use................................................................................................................- 33 -
Warranty & Service..................................................................................................................- 33 -
406DUO Firmware Upgrades..........................................................................................................- 34 -
Firmware Upgrades via USB Port............................................................................................- 34 -
Firmware Upgrades via SD Card .............................................................................................- 35 -
Use Logview for 406DUO.................................................................................................................- 36 -
Communication Steps...............................................................................................................- 36 -
Important Notes................................................................................................................................- 38 -
The Charging Principle for Reflex Charge Mode ....................................................................- 38 -

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Power Regenerative Mode .......................................................................................................- 38 -
Channel Regenerative Mode....................................................................................................- 38 -
Resistance or Bulbs....................................................................................................................................- 38 -
Charging Battery........................................................................................................................................- 39 -
Lithium Battery Extra Discharge Mode ...................................................................................- 39 -
Appendix............................................................................................................................................- 40 -
Status Indication of Running Channel......................................................................................- 40 -
Status Indication of Channel Control.......................................................................................- 40 -
Error Messages.........................................................................................................................- 41 -

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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User Notice
Safety Notes
Please read the entire Manual completely before using, to make sure you can use this device properly and more
safely.
1406DUO is a dual port charger, but this does not mean you can charge/discharge any
configuration of the two sets of batteries! You must follow these rules: two battery packs
without any external electrical connections, otherwise they could permanently damage the
charger or batteries. For example: when charging a 12-cell battery pack, you must split it
into two separate 6-cell, and you must never charge two 6-cell battery packs in series by
connecting with CH-1 and CH-2 respectively.
2406DUO input power cannot have fast voltage/current fluctuations, which may cause output
over current, and will damage the charger and/or the batteries and input power source in
extreme cases. For example: setting the input protection current and voltage is necessary
according to the specifications of the input power supply, in order not to cause power
overload. Some power supply overload protection circuits will produce substantial
fluctuations in the supply voltage.
3Keep the charger away from children and pets at all times.
4Never leave the charger unsupervised when charging or discharging. If you leave, disconnect the battery and switch
off charger to prevent any unexpected dangers or damage.
5Ensure the charger program and settings match the battery pack otherwise the battery will be damaged and a
dangerous situation may arise, especially for Lithium batteries, which may cause a fire.
6Do not mix batteries of different types, different capacities or from different manufacturers.
7Do not disassemble the charger.
8Do not place the charger or any battery on a flammable surface or near a combustible material while in use. Do not
charge or discharge on a carpet, cluttered workbench, paper, plastic, vinyl, leather or wood, inside an R/C model or
inside a full-sized automobile.
9Never block the air intake holes and never use in a refrigerated or high temperature environment. If used in such an
environment, the internal temperature protection may result in abnormal charging/discharging that could be
dangerous.
10 Do not allow water, moisture, metal wires or other conductive material into the charger.
11 Never charge or discharge any battery having evidence of leaking, expansion/swelling, damaged outer cover or case,
color-change or distortion.
12 Do not try to charge “non-rechargeable” dry cells.
13 Do not exceed the battery manufacturer’s suggested maximum charge rates.
14 Carefully follow the battery pack manufacturer’s recommendations and safety advice.

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Copyright
Copyright@ 2013 Shenzhen New Junsi Electronic Co., Ltd.All Rights Reserved.
Without prior written consent by Shenzhen New Junsi Electronic Co., Ltd, any units or individual extracts or copies of
part or the entire contents of this manual, and transmission in any form is illegal and strictly prohibited.
The product described in this manual may include copyright software ownership belonging to Shenzhen New Junsi
Electronic Co. Ltd and its licensee, except with the express permission from relevant rights holders, otherwise,
any copying, distribution, modification, excerpt, de-compilation, disassembly, decryption, reverse engineering, lease,
transfer, sub-license, as well as other acts of infringement of software copyright is strictly prohibited, but apart from the
restrictions prohibited by applicable law.
406DUO Special Features
1The 406DUO uses advanced Synchronous buck-boost DC/DC converter technology, high power, a high current and
high-performance power conversion circuit. The maximum charge power capacity is up to 1400W, the maximum
charge/discharge current of a channel is up to 40A, and two channels in Synchronous Mode are up to 70A.
2Each channel supports 6s LiPo, Lilo, LiFe and NiZn batteries, with maximum 1.2A balance current, and adopts a
unique balance calculation of internal resistance correction. Supports 1-20s NiMH/NiCd batteries and 1-12s Pb
batteries.
3With 1A/5V USB charging port, convenient for the user to charge mobile phones and PCs.
4When the channel output connects the battery after the charger powers on, it will start automatically the
anti-sparking protection.
5Intelligent fan control. Sensing internal temperature via the internal temperature sensor, to thereby control the fan
speed.
6Internal temperature protection. When the internal temperature exceeds the Power Reduce temperature, the output
power is automatically reduced; and the charger will shut down when temperature exceeds the Shut-down
temperature.
7This charger can save 64 parameters sets and support the data import/export to SD card.
8A 2.8-inch LCD screen provides rich information including current, voltage, power, capacity, internal resistance,
control status, time-consuming and temperature, etc.
9Multi-discharge features: self-discharge, regenerative to input discharge, and lithium battery extra expanding
discharge.
10 Supports measurement for internal resistance of battery offline and online. Can measure not only the internal
resistance of the entire battery pack, but also measure the internal resistance of each cell within the lithium battery.
11 The iCharger has protection for reversed polarity (input or output), input voltage/current, battery temperature,
charging capacity, overrun time and maximum power etc.
12 Supports upgrading the hardware program by USB port or SD card. The iCharger also supports the “Logview”
software and can display, plot and analyze the charge and discharge data by it. (See detailed information about
Logview at the following website: http://www.logview.info)
Appearance Parameters
Net weight: 0.91kg
Dimension: 171×118×59 ±0.5mm

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Specifications
Input voltage range: 10.0—30.0VDC
Maximum input current limit: <60A, CH1/2<47A
Maximum charge/discharge current: 60A@Syn. Mode 40A@Asyn. Mode
Maximum charge power capacity: 1400W (Channel 1000W @input > 23.5V)
Maximum discharge power capacity: 140W (Channel 80W)
Maximum regenerative discharge power capacity: 1400W (Channel 1000W)
Maximum extra discharge power capacity: 2000W (Channel 1000W @25V/40A)
Maximum current drain for balancing: 2.4A@Syn. Mode 1.2A@Asyn. Mode
USB charging port: 5V/1A（current-limiting protection 1.2A）

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Device Introduction
406DUO Parts & Interface Introduction
406DUO Buttons Function & Icons Description
Buttons allow quick access to certain features when using 406DUO, familiarity with the icons on the interface will help
you better understand the working status of the charger, as shown in following chart:
Name
Functions & Use
KNOB
Press: confirm
Counterclockwise rotation: up Clockwise rotation: down
Long press: pop up manage menu via long press on BATTERY
MEMORY SELECTION interface
exit the program after saving via long press on
BATTERY SETUP interface
TAB/SYS
Long press: enter SYSTEM MENU via long press on initial
interface, and return to the previous menu via long
press on the rest interface
Click: can act as backspace when editing program name on
MEMORY SETUP, and return to the previous menu via
clicking on the rest interface
（1）OUTPUT-1﹣
（2）OUTPUT-1﹢
（3）TEMP-1
（4）BALANCE PORT-1
（5）OUTPUT-2﹣
（6）OUTPUT-2﹢
（7）TEMP-2
（8）BALANCE PORT-2
（9）STOP/START-1
（10）STATUS-1
（11）TAB/SYS
（12）STOP/START-2
（13）KNOB
（14）STATUS-2
（15）LCD
（16）J1,J2 PORT
（17）FAN
（18）USB POWER
（19）USB
（20）BUZZER
（21）SD CARD SLOT
（22）POWER OUTPUT LINE

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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STATUS-1
Long press: measure internal resistance of CH-1 via long press on
initial interface, and to pop up the parameters setup
interface via long press when running program
Click: switch to the information display of CH-1 when running
program
STATUS-2
Long press: measure internal resistance of CH-2 via long press on
the initial interface, and to pop up the parameters
setup interface via long press when running program
Click: switch to the information display of CH-2 when running
program
STOP/START-1
Click: click on the initial interface to enter CH-1-BATTERY
MEMORY SELECTION, and click again to return the
initial interface
Long press: long press on the initial interface to enter the last
running program of Run Program on CH-1, and long
press again to run the selected program
STOP/START-2
Click: click on the initial interface to enter CH-2-BATTERY
MEMORY SELECTION, and click again to return the
initial interface
Long press: long press on the initial interface to enter the last
running program of Run Program on CH-2, and long
press again to run the selected program
STATUS-1+STOP/START -1
Press simultaneously on initial interface to enter CH-1-MONITOR
SETTINGS on CH-1
STATUS-2+STOP/START -2
Press simultaneously on initial interface to enter CH-2-MONITOR
SETTINGS on CH-2
STOP/START -1+STOP/START -2
Long press simultaneously on Run Program interface, two
channels will run the same program simultaneously
Fan status: a. Grey shows not running
b. Green shows running (the higher the green shows,
the faster the fan runs, and vice versa)
SD card status: a. Grey shows the SD card is not inserted
b. Green shows the SD card has been inserted and
can be used normally
USB status: a. Grey for no USB connection
b. Green for USB connection

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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406DUO StandardAccessories
Balance connector conversion board #1
Power cable #1
600mm
Suit forAlign/Dualshy battery etc.
Power input cable
Balance wire for balance board #2
150mm
Output cable #2
320mm
Suit forAlign/Dualshy battery etc.
Banana gold plug power output cable (single
channel)
CD-ROM #1
User’s manual & Software
406DUO Optional Accessories
Temperature sensor lead
350mm
Dual balance wires for balance board
150mm
XP2.54 interface temperature sensor lead
7Pin-7Pin dual balance wire
Dual channel output cable
350mm
USB data line
700mm
Banana gold plug power output cable (two
channels)
Standard mini USB data line

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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The Order of Connection for Charger
The Power Input Ground Cannot be Connected with the Output Ground
The Order of Connection
Please be sure to connect the input power first, after the charger starts the output anti-sparking protection (after
electrifying 1 second), and then connect the battery.
Dual-channel Connection Notes
Connection for Channel Asynchronous Mode
ChannelAsynchronous Mode: i.e. CH-1 and CH-2 work independently.
Go to MEMORY SETUP→Option→Channel Mode to select Asynchronous.
Note: In this mode, the two channels must not have any external electrical connection; otherwise it will
damage the charger. You cannot charge with connection as shown in the left picture, the correct
connection as shown in the right picture.
Note: The input of power lead cannot be
connected directly to the output (see left
picture), and the voltage of the input power
supply cannot have large instantaneous
fluctuations, otherwise the charger will be
damaged.

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Connection for Channel Synchronous Mode
Channel Synchronous Mode: i.e. CH-1 & CH-2 are controlled at the same time to charge/discharge one battery pack. Go
to MEMORY SETUP→Option→Channel Mode to select Synchronous.
In this mode, the maximum current can be up to 70A, power capacity is the sum of both channels’ limits.
4
2
3
1
1: The total voltage of dual-channel
2: The total current of dual-channel
3: The total capacity of dual-channel
4: Channel current & voltage difference
Note: The two channels charge one battery
pack simultaneously must be connected as
shown in the left picture and the two channels
must work in synchronous mode, otherwise the
charger will be damaged.

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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iCharger Charge/Discharge Setup & Use
406DUO iCharger can charge/discharge LiPo, Lilo, LiFe, NiMH, NiCd,Pb or NiZn batteries, this manual will explain
and introduce in detail the charger’s features, setup and use.
Power Supply Setup
The charger boots automatically when the power is turned on and the initial interface will display LOGO, charger
relevant information, power source and message etc.
System will delay 5 seconds after booting, during this period, press TAB / SYS button to change the input source type,
while pressing any other buttons to enter the initial interface.
Note: Set type of input power supply in SYSTEM MENU→Charger Setup→Power Supply; see details on
Page26 406DUO Parameters Setup.
After selecting the input power supply, confirm and enter the initial interface.
Note: The specific display of each region can refer to the introduction on Page14 & Page15 Program
Running Status & Error Messages.
1: Logo 2: Model
3: Firmware version 4: Serial number
5: Input power voltage 6: Input power source
7: Hint message
1: CH-1Channel Information Display
2: CH-2Channel Information Display
3: Status Display
7
3
2
1
4
5
6
1
3
2

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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ProgramAdd & Manage
Click STOP/START-x button on the initial interface to pop up the BATTERY MEMORY SELECT window.
406DUO has 7 built-in programs before it enters to the market (shown in the following picture), which cannot be deleted
and are limited for editing. The built-in programs are underline to distinguish them from the customized programs set by
the user.
Click " " (or long press KNOB)to pop up the MANAGE after exiting focus via pressing TAB/SYS, and click
"" to enter MEMORY SETUP to edit the program, or click " " to add new program and
enter its editing interface at the same time.
Note: If the program selected is a built-in program, "Copy From…" and "Delete" options are shown in
grey as inactive status, and unable to be set.
Run Program for Charger
After selecting program on BATTERY MEMORY SELECTION, click to enter Run Program interface (long press
STOP/START-x button on the initial interface will enter Run Program from the last running program), as below:
Note: 1. The revised common parameters of built-in program will be saved by default automatically
after running, while the program customized by the user can be set to be saved or not in
MEMORY SETUP→MEMORY OPTION→Auto save before the program runs.
2. After setting the Cap. value, when the Current value exceeds the certain value, the system will
be a warning display and alarm voice(shown in the following picture). The Current value of
each battery type is: LiXX battery :> 3C, NiMH/NiCd battery :> 2C, Pb battery :> 0.3C, NiZn
battery>2C.
1: Run Program Selection
2: Common Parameters Setup
3. Auto- save Hint
1
2
3

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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After selecting the program to run, click confirmation to pop up RUN PROGRAM window, as below:
Click Yes to run the program, click No to cancel.
Program Running Status
Press STATUS-x button when running program to switch the multipage information displays, as below:
Note: Different types of batteries and programs have different multipage information displays, see
details below:
Types of battery
Cells
IR
Info
Cycle
LiPo/LiIo/LiFe
√
√
√
√
NiMH/NiCd
×
×
√
√
Pb
×
×
√
√
NiZn
√
√
√
√
Cells voltage information
1: Cells voltage
2: Cells voltage sum
3: Maximum cells voltage
difference
IR information
1: Cells internal resistance
2: Pack internal resistance
3: Line resistance
Information page
1: Power
2: End voltage
3:Lowest input voltage
4: Safety time
5: Temp. cutoff
6: End charge capacity
Cycle charge information
1: Cycle charge status
1: Running program name 2: Battery type
3: Running channel status
4: Channel control status/external temperature
5: Running program time
6: Multipage information
7: Charging voltage 8: Charging current
9: Charging capacity 10: Balance strength
11: Input power source type 12: Input voltage
13: Input current 14: Input capacity
15: Internal temperature 16: Fan status
17: SD card status 18: USB status
See details on Page40 Status Indication of Running Channel
& Status Indication of Channel Control
1
2
3
2
4
5
3
6
1
1
2
1
3
3
2
1
4
6
7
8
9
11
12
13
14
16
17
18
5
15
10

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Press STATUS-x button for 2 seconds when running program to pop up MODIFY interface, to modify the current and
discharge voltage parameters online, as below:
Press STOP/START-x button when running program to stop running, and press STOP/START-x button again to return to
the initial interface.
Error Messages
During the running program, if the system detects an error, it will stop running the program on the channel immediately
and pop up the red dialog box and the buzzer alarms, as below:
Program Edit
After adding new programs or editing saved programs, the system will enter MEMORY SETUP interface. Users can set
or modify the program on this interface.
Note: 1. When editing the program name, the character can be selected by turning the Knob,and
clicking the Knob to confirm the selected character. Clicking TAB/SYS button will delete the
character. Double-click Knob after editing program name. If the program name is empty, the
system will name it automatically.
2. If the Editing program is the built-in program, the program name and battery type etc.
parameters cannot be changed.
After setting the basic parameters of a battery, click " " to enter MEMORY OPTION interface, after setting click
“ ” to return to MEMORY SETUP, and click “ ” to save.
1: Error number
2: Error message
See all details on Page41 Error Messages.
1: Program name 2: Battery type
3: Number of cells 4: Battery capacity
5: Available program
2
1
5
2
3
4
1

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Note: 1. Channel Mode has asynchronous, synchronous available, see more details on Page10
Dual-channel Connection Notes.
2. If select synchronous mode, the maximum charge/discharge current setting will change from
40A to 60A.
3. If tick Auto saves before the program runs, the parameters set on the Run program will be
saved automatically, and the Run Program will display “Auto save” ( shown in the following
left picture), otherwise it will display “Don’t save!” (shown in the following right picture); for
the built-in program, the Auto save before the program runs option is ticked by default.
4. If tick Log save to SD card, the log files will be saved to SD card when running program, and
vice versa.
LiPo/LiIo/LiFe Battery Charge/Discharge Setup
After adding a program, it will switch to LiPo/LiIo/LiFe battery in Type option on the MEMORY SETUP interface, and
set the number of Cells and Capacity, if there is no setting for the number of Cells, the charger will set Auto by default.
After editing all parameters for the program, click " " to save and return to the previous interface.
As shown in the above picture, the program of LiPo, LiIo, LiFe battery has: Charge, Storage, Discharge, Cycle and
Balance Only.
LiPo/LiIo/LiFe Battery Charge Setup
Select Program→Charge to enter Charge setup interface.
Channel Mode: Asynchronous (default);
Synchronous
Run Counter: 0-999; default: 0
Log Interval: 0.5-60Sec; default: 1Sec
Chg Current: 0.05A-40A; default: 2A
Chg Mode: Slow Balance, Normal Balance (default),
Fast Balance, User Balance, Not Balance
Chg End Current: 1%-50%; default: 10%
Chg Cell Volt: 3.85V/Cell-4.35V/Cell;
Default: 4.2V/Cell
Cells: Auto (default), 1-6S

406DUO V1.2.0
Synchronous Balance Charger/Discharger
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Note:1. When the value of charge cells voltage exceeds the recommended value (LiPo 4.2V, LiIo 4.1V,
LiFe 3.6V), the charger will display a warning and alarm. As long as the user changes the values,
the battery types and cells voltage value on the main charging interface will be displayed
alternately.
2.For the setting process for all program in this manual, tick Show to display the setting program
on MEMORY SETUP (shown in the following picture), and vice versa; the built-in program is
ticked by default.
LiPo/LiIo/LiFe Battery Not Balance Charge Setup
When switch to Not Balance on Chg Mode, Only Chg End Current is available for charging end condition, and
“ ” behind Chg Mod and Chg End Current are inactive.
Note: The charger first charges with constant current (CC) according to the user setting, then turns to
constant voltage (CV) when the charging voltage reaches the peak point. In the CV phase the
current gradually falls, and the charger will terminate charging when the current falls below the
percentage of the configured charge current.
For example: the default value of Chg Current is 2A, and the default value of Chg End Current is
10%
Chg End Current=2A*10%=0.2A
Therefore it stops charging when the charging current reduces to 0.2A.
LiPo/LiIo/LiFe Battery Balance Charge Setup
Switch to Slow Balance, Normal Balance, Fast Balance or User Balance on Chg Mode as the balance charge mode, and
" " button will be available, click it to enter Balance mode setup interface.
Note: On Balance mode, the charger will monitor the voltage of individual cells to control it within the
Chg Cell Volt and equalize the voltage in all cells, to avoid some cell voltage over-charged or not
full. When selecting Balance mode, the balance port of charger or balance board must be
connected with battery except for connecting 1S battery.
Balance Start : CV,CV-0.1V — 1V,Alway
Default: CV-0.2
If the balance charge voltage is 4.2V, Balance Start
set to CV-0.2V; therefore the charger will start to
balance the battery cells when the voltage reaches to
4.2V-0.2V=4V

406DUO V1.2.0
Synchronous Balance Charger/Discharger
- 18 -
When switch to User Balance mode on Chg Mode; the Balance Diff, Balance Set Point, Balance Over Charge and
Balance Done Delay are available, after setting, click" " to return to the previous interface.
Note: If Balance Diff value is lower, the voltage difference between individual cells will be lower and
the balancing will take more time before the program ends. If Balance Set Point value is lower,
the battery will be closer to the setting cut-off voltage and the time taken will be longer before
the program ends. Balance Over Charge, the maximum overcharge compensation voltage acts as
accelerated charge, and the larger the value, the more obvious the accelerated charge.
For example: Charge Lipo with Vstd, set Balance Over charge to Vboc, the cell’s internal
Resistance detected is Ri, when the charge current is Ia, the actual CV value of cells is Va
IF Ri*Ia > Vboc THEN
Va = Vstd + Vboc
ELSE
Va = Vstd+Ri*Ia
Please set this parameter after understanding fully, or keep the default value at 0.
The value of Balance Done Delay is larger; the battery is closer to the setting cut-off voltage
when the program ends.
Switch to Balance charge mode on Chg Mode, and click “ ” behind Chg End Current to enter CHARGE
BALANCE End SETUP interface for setting.
LiPo/LiIo/LiFe Battery ChargeAdvanced Setup
Click " " to enter LiPo/LiIo/LiFe ADVANCED SETUP, after setting, click" "to return to the previous
interface.
Balance Diff: 1mV-10mV; default:5mV
Balance Set Point: 1mV-50mV; default:5mV
Balance Over Charge: 0mV-50mV; default:0mV
Balance Done Delay: 0Min-20Min; default:1Min
Balance Diff: 1mV-10mV; default:5mV
Balance Set Point: 1mV-50mV; default:5mV
Balance Over Charge: 0mV-50mV; default:0mV
Balance Done Delay: 0Min-20Min; default:1Min
1
2
3
4
1: The charger will stop balance charge if detects the
Balance condition is met, and the End Current
condition is invalid
2: The charger will stop balance charge if detects the End
Current condition is met, and the Balance condition is
invalid
3: The charger will stop balance charge if detects the End
Current condition or the Balance condition is met
4: The charger will stop balance charge if detects the End
Current condition and the Balance condition are met
Restore Lowest Voltage:
0.5V/Cell-2.5V/Cell; Default: 1V/Cell
Restore Charge Time:
1Min-5Min; default: 3Min
Restore Charge Current:
0.02A-0.5A; default: 0.1A

406DUO V1.2.0
Synchronous Balance Charger/Discharger
- 19 -
Note: 1. When charging the over-discharged battery, the charger will detect if the cell voltage is larger
than the restore voltage, if larger, it will pre-charge the battery with restore current, if within
the setting restore time, the cell voltage rises to the normal value then it will turn to the
charging program; otherwise it will stop running.
2. After charging, the battery may not be completely charged; tick Keep charging after the done
to charge the battery with smaller current when charging ends.
LiPo/LiIo/LiFe Battery Charge Safety Setup
Click " " to enter CHARGE SAFETY SETUP, after setting click" " to return to the previous interface.
Note: Cut-Temp. is the maximum safety temperature of the battery. If the temperature sensor detects
the set value, the program will stop running in order to protect the battery from being damaged
by high temperature.
LiPo/LiIo/LiFe Battery Storage Setup
This mode is for storing LiPo/LiIo/LiFe battery that will not to be used for an extended period. The charger determines
whether to charge or discharge the battery based on the configured target voltage. If the battery voltage exceeds the
target storage voltage it will start to discharge, while lower than the target storage voltage it will start to charge.
Select Program→Storage to enter Storage setup interface.
Note: 1. Accelerated storage: accelerated storage via internal resistance correction. Tick Accelerated
storage to activate accelerated storage.
2. Storage Compensation is the compensation for the battery voltage fallback: for storage charge,
the actual storage voltage=Storage Cell Voltage + Storage Compensation; for storage discharge,
the actual storage voltage=Storage Cell Voltage - Storage Compensation.
LiPo/LiIo/LiFe Battery Discharge Setup
Select Program→Discharge to enter Discharge setup interface.
Cut-Temp: 20 ℃ -80 ℃ ; default: 45 ℃
Max Capacity: 50%-200%; default: 120%
Safety Timer: 1Min-9999Min; default: off
Storage Cell Voltage:3.7V/Cell-3.9V/Cell;
Default: 3.85V/Cell
Storage Compensation: 0V/Cell-0.2V/Cell;
Default: 0.01V/Cell
Discharge Current: 0.05A-40A; default: 2A
Discharge Voltage: 3V/Cell-4.1V/Cell;
Default: 3.5V/Cell
End Current: 1%-100%; default: 50%
Regenerative Mode: OFF (default), To input,
To channel

406DUO V1.2.0
Synchronous Balance Charger/Discharger
- 20 -
Note: 1. The charger first discharges with constant current (CC) according to the user setting then turns
to constant voltage (CV) when it reaches the discharge voltage. In the CV phase the current
gradually falls, and the charger will terminate discharging when the current falls below the
percentage of the configured discharge current.
2. Regenerative mode has three available settings: OFF, To input, To channel, see more details on
Page38 Important Notes.
To Channel Setup
When selecting to To channel on Regenerative Mode, “"button changes from inactive to its operational status,
and click to enter To channel setup interface, after setting click " " to return to the previous interface.
Note: 1. For example, a 12V/60W bulb as the load of To Channel, it should set Voltage Limit =12V；
Current Limit=60/12=5A.
2. When the battery as the load of To Channel, Voltage Limit and Current Limit are not settable，
see details on Page38 Channel Regenerative Mode .
LiPo/LiIo/LiFe Battery DischargeAdvanced Setup
Click " " to enter LiPo/LiIo/LiFe DISCHARGE ADVANCED SETUP interface, after setting click"" to
return to the previous interface.
Note: 1. Tick Extra Discharge Enable to activate discharge enable, see more details on Page39 Lithium
Battery Extra Discharge Mode.
2. Tick Balance Enable to activate balance discharge; when discharge enters the CV phase, it
starts to balance the cell voltages.
LiPo/LiIo/LiFe Battery Discharge Safety Setup.
Click " " to enter DISCHARGE SAFETY SETUP, after setting click" " to return to the previous interface.
Channel Join:
Resistance or bulbs (default)
Charging battery
Voltage Limit: 0.1V-40V; default: 12V
Current Limit: 0.05A-40A; default: 1A
Cut-Temp: 20 ℃ -80 ℃ ; default: 45 ℃
Max Capacity: 50%-200%; default: 90%
Safety Timer: 1Min-9999Min; default: off