Skyrc T400Q User manual

SK-100189
V1.0
AC/DC Quattro Balance Charger/Discharger
Instruction Manual

Introduction
Features
Warning and Safety Notes
Standard Battery Parameters
Program Flow Chart
Explanation of Buttons
Power and Battery Connection
Charger Operation
Lithium Battery Program (LiPo/LiFe/Lilon/LiHV)
VARIOUS INFORMATION DURING THE PROCESS
NiMH/NiCd Battery Program
Pb Lead-acid Battery Program
Battery Memory Set and Call Out
System Setting
Battery Voltage Meter
Battery Resistance Meter
Warning and Error Message
The Set Contains
Specification
Conformity Declaration
Terminology
Warranty and Service
01
02
04
04
06
07
08
09
10
11
12
15
17
18
19
19
20
20
21
22
23
24
Fire, physical damage, and personal injury may occur if the charger is used
incorrectly.
Please put this charger and the battery on a heat-resistant, non-inflammable
and non-conductive surface while charging.
NEVER leave the charger unattended during charging.
The battery should be charged under a temperature of 0-40°C.
Never use the charger in a rain or wet environment.
Please disconnect the battery from the charger when charging is completed!
!
!
!
!
!
!
SKYRC T400Q Instruction Manual
Warning

.01 SKYRC T400Q
SKYRC T400Q Instruction Manual
Introduction
Thanks for purchasing SkyRC T400Q AC/DC Quattro Balance Charger/Discharger. This unit is
simple to use, but the operation of the charger does require some knowledge on the part of the
user. These operating instructions are designed to ensure that you quickly become familiar with its
functions. It is therefore important that you read right through the Operating Instructions,Warning
and Safety Notes before you attempt to use your new charger for the first time. We hope you
have many years of pleasure and success with this charger.
SkyRC T400Q is a multi-function quattro balance charger/discharger with four independent
circuits that can charge various chemistries batteries (LiPo/LiFe/Lilon/LiHV/NiMH/NiCd/Pb).
The charger delivers up to 100W per port and can charge four batteries simultaneously at up
to 12 amps each. It comes ready to charge in the most compact design yet while taking up
minimal space in the pit area. And the handle design ensures the charger is convenient to
carry. Additionally, Additionally, the charger also can charge AGM and Pb battery under a low
temperature in the AGM and Cold modes.
LCD Display
Scroll Through the Main Menu
Stop Any Charge Processes Resume or Start
Charge Processes
LED Indicator
Balance Port
Alter Values
See the Status of Individual
Cells in Balance Charge Mode
Switch Between
Port A, B, C and D.
Output Socket
Please BE SURE to read these INSTRUCTIONS, WARNING and SAFETY NOTES before
you use the charger for the first time. It can be dangerous to mis-handle batteries and
battery chargers, as there is always a risk of batteries catching fire and exploding.
AC Input 100-240V
Ventilation Slot
Carrying Handle
DC Input 11-18V
Smart Ventilation Fan

SKYRC T400Q 02.
SKYRC T400Q Instruction Manual
Features
4 Independent Ports
Dual Input
Last Operation Remember
Optimized Software
Voltage Calibration (For expert user only)
Terminal Voltage Control(TVC) (For expert user only)
AGM Charge and Cold Charge
SkyRC T400Q allows you to charge four batteries of different chemistries simultaneously. The
charger features 100 Watts on each port, with an overall output power of 400Watts.
The input of the charger is AC 100-240V or DC 11-18V. You can find peace of mind using the
charge either indoors or outdoors.
SkyRC T400Q will remember your last operation of charging/discharging before power off.
SkyRC T400Q features the so-called AUTO function that sets the feeding current during charging
or discharging. Especially for lithium batteries, the charger can prevent overcharging, which may
lead to an explosion due to misoperation. It can disconnect the circuit automatically and alarm once
any malfunction is detected. All the programs were controlled independently to maximize safety and
minimize danger. Users can configure all the settings!
You can calibrate the voltage directly on the charger with a 6S LiPo battery. For more information,
please contact us at [email protected]
The charger allows user to change the end voltage.
There are two more charging modes of AGM and Cold for Pb batteries. Under a low temperature
(0°C/32°F), please charge AGM and Pb battery using these modes!
Balancing Individual Battery Cells
Battery Memory (Data Store/Load)
Support Various Lithium Batteries
During charging and discharging, SkyRC T400Q can monitor and balance each battery cell
individually. An error message will prompt, and the process will be ended automatically if the
voltage of any single cell is abnormal.
The charger can store up to 10 different charge/discharge profiles for each port. You can keep the
data about the program setting of the battery for continuous charging or discharging. Users can call
out these data any time quickly!
SkyRC T400Q can charge batteries of varying chemistries (LiPo/LiFe/Lilon/LiHV/NiMH/NiCd/Pb).

.03 SKYRC T400Q
SKYRC T400Q Instruction Manual
Battery Voltage Meter
Battery Internal Resistance Meter
Capacity Limit
Processing Time Limit
Re-Peak Mode of NiMH/NiCd
Delta-peak Sensitivity for NiMH/NiCd
Cyclic Charging/Discharging(CCD)
Automatic Charge Current Limit
The user can check battery's total voltage, the highest voltage, the lowest voltage and each cell's
voltage.
The user can check the battery's total internal resistance and each cell's internal resistance.
The charging capacity is always calculated as the charge current multiplied by time. If the charging
capacity exceeds the limit, the process will be terminated automatically.
You can also limit the maximum process time of a program to avoid any possible defect.
In re-peak charge mode, the charger can peak charge the battery once, twice or three times in a
row automatically. This is good for making the battery fully charged.
The automatic charge termination principle is that when the battery's voltage exceeds the
threshold, the process will be terminated automatically.
1 to 5 cyclic and continuous process of charge > discharge or discharge > charge is operable for
battery refreshing and balancing to stimulate the battery's activity.
You can set up the upper limit of the charging current when charging your NiMH or NiCd battery; it
is useful for the NiMH battery of low impedance and capacity in the AUTO charging mode.

SKYRC T400Q 04.
SKYRC T400Q Instruction Manual
Never attempt to charge or discharge the following types of batteries.
!
LiPo
Nominal
Voltage 3.7V/cell
4.2V/cell
3.8V/cell
≦1C
3.0-3.3
V/cell
3.6V/cell
4.1V/cell
3.7V/cell
≦1C
2.9-3.2
V/cell
3.3V/cell
3.6V/cell
3.3V/cell
≦4C
2.6-2.9
V/cell
3.7V/cell
4.35V/cell
3.90V/cell
≦1C
3.1-3.4
V/cell
1.2V/cell
1.5V/cell
n/a
1C-2C
0.1-1.1
V/cell
1.2V/cell
1.5V/cell
n/a
1C-2C
0.1-1.1
V/cell
2.0V/cell
2.4V/cell
n/a
≦0.4C
1.8V~2.0
V/cell
Max Charge
Voltage
Storage
Voltage
Allowable
Fast Charge
Min. Discharge
Voltage
Lilon LiFe LiHV NiMH NiCd Pb
Be very careful to choose the correct voltage for different types of battery otherwise you may
cause damage to the batteries. Incorrect settings could cause the cells tofire or explode.
A battery pack which consists of different types of cells (including different manufacturers)
A battery that is already fully charged or just slightly discharged.
Non-rechargeable batteries (Explosion hazard).
Batteries that require a different charge technique from NiCd, NiMh, LiPo or Gel cell (Pb, Lead
acid).
A faulty or damaged battery.
A battery fitted with an integral charge circuit or a protection circuit.
Standard Battery Parameters
These warnings and safety notes are particularly important. Please follow the
instructions for maximum safety; otherwise the charger and the battery can be
damaged or at worst it can cause a fire.
Never leave the charger unattended when it is connected to its power supply. If any malfunction
is found, TERMINATE THE PROCESS AT ONCE and refer to the operation manual.
Keep the charger well away from dust, damp, rain, heat, direct sunshine and vibration. Never
drop it.
The allowable AC input voltage is 100~240V AC and DC input 11-18V.
This charger and the battery should be put on a heat-resistant, noninflammable and
nonconductive surface. Never place them on a car seat, carpet or similar. Keep all the
inflammable volatile materials away from operating area.
Make sure you know the specifications of the battery to be charged or discharged to ensure
it meets the requirements of this charger. If the program is set up incorrectly, the battery and
charger may be damaged .It can cause fire or explosion due to overcharging.
!
Warning and Safety Notes
!
!
!
!

.05 SKYRC T400Q
SKYRC T400Q Instruction Manual
Please bear in mind the following points before commencing charging
Discharging
Charging
!
!
!
Did you select the appropriate program suitable for the type of battery you are charging?
Did you set up adequate current for charging or discharging?
Have you checked the battery voltage? Lithium battery packs can be wired in parallel and in
series, i.e. a 2 cell pack can be 3.7V (in parallel) or 7.4V (in series).
Have you checked that all connections are firm and secure?
Make sure there are no intermittent contacts at any point in the circuit.
Batteries installed in a device or which are electrically linked to other components.
Batteries that are not expressly stated by the manufacturer to be suitable for the currents the
charger delivers during the charge process.
The main purpose of discharging is to clean residual capacity of the battery, or to reduce
the battery voltage to a defined level. The same attention should be paid to the discharging
process as charging. The final discharge voltage should be set up correctly to avoid deep-
discharging. Lithium battery can not be discharged to lower than the minimum voltage, or it
will cause a rapid loss of capacity or a total failure. Generally, lithium battery doesn't need to
be discharged. Please pay attention to the minimum voltage of lithium battery to protect the
battery. Some rechargeable batteries have a memory effect. If they are partly used and
recharged before the whole charge is accomplished, they remember this and will only use that
part of their capacity next time. This is a memory effect. It is said that NiCd and NiMH batteries
are suffering from memory effect. NiCd has more memory effect than NiMH.
During charge process, a specific quantity of electrical energy is fed into the battery. The
charge quantity is calculated by multiplying charge current by charge time. The maximum
permissible charge current varies depending on the battery type or its performance, and can be
found in the information by the battery manufacturer. Only batteries that are expressly stated to
be capable of quickcharge are allowed to be charged at rates higher than the standard charge
current.
Connect the battery to the terminal of the charger: red is positive and black is negative. Due
to the difference between resistance of cable and connector, the charger can not detect
resistance of the battery pack, the essential requirement for the charger to work properly is that
the charge lead should be of adequate conductor cross-section, and high quality connectors
which are normally goldplated should be fitted to both ends. Always refer to the manual by
battery manufacturer about charging methods,
recommended charging current and charging time. Especially, the lithium battery should be
charged according the charging instruction provided by the manufacturer strictly. Attention
should be paid to the connection of lithium battery especially.
Do not attempt to disassemble the battery pack arbitrarily.
Please get highlighted that lithium battery packs can be wired in parallel and in series. In the
parallel connection, the battery's capacity is calculated by multiplying single battery capacity by
the number of cells with total voltage stay the same. The voltages imbalance may cause fire or
explosion .Lithium battery is recommended to charge in series.

SKYRC T400Q 06.
SKYRC T400Q Instruction Manual
Program Flow Chart

.07 SKYRC T400Q
SKYRC T400Q Instruction Manual
Explanation of Buttons
BATT PROG / STOP Button
DEC Button
INC Button
ENTER/Start Button
PORT Button
It is used to stop the progress or go back to previous step/screen.
It is used to go through the menus and decrease the parameter value.
It is used to go through the menus and increase the parameter value.
It is used to enter parameter or store parameter on screen.
It is used to switch between port A,B,C and D.
When you want to alter the parameter value in the program, press the ENTER/Start button to make
it blink then change the value by pressing DEC and INC button. The value will be stored by re-
pressing the ENTER/Start button. If there is another parameter can be altered in the same screen,
when you confirm the first parameter value, the next parameter value will start to blink which
means it is ready to alert.
When you want to start the progress, press and hold the ENTER/Start button for 3 seconds. When
you want to stop the progress or go back to previous step/screen, press the BATT PROG/STOP
button once. When you power on the charger, it will enter LiPo Battery balance program directly.
You could change the mode (balance mode, normal charge mode, fast charge mode, store mode
or discharge mode), enter the desired charging/discharging mode, set the referred parameter and
start the progress.
If you have no request for LiPo Battery program, please press the BATT PROG/STOP button to
enter BATT PROGRAM screen.

SKYRC T400Q 08.
SKYRC T400Q Instruction Manual
Power and Battery Connection
1. Connect to the power source
2. Connect the battery
AC 100-240V Mains Power Supply: 12V DC Battery / DC Power Supply:
1) LiPo Battery Connection
For safety reasons, the default setting for charging Lithium (LiPo, Lilon, LiFe and LiHV)
battery is using a balance adaptor to connect the battery and charger in Charge, Fast
Charge, Balance Charge, Discharge and Storage modes.
But if the battery comes without balance wires, please proceed with the prompt message
"No balance cable detected, push Enter to continue."
The balance wires of the battery must connect to the charger with the black wire aligned
to the negative marking. Ensure correct polarity!
There are two ways to power SkyRC T400Q: DC 11-18V and AC 100-240V.
TO AVOID SHORT CIRCUIT, ALWAYS CONNECT THE CHARGE LEADS TO
THE CHARGER FIRST, AND THEN TO THE BATTERY.
DISCONNECT THE PACK IN THE REVERSE ORDER

.09 SKYRC T400Q
SKYRC T400Q Instruction Manual
2) NiMH/NiCd or Pb Battery Connection
Charger Operation
Different battery type has different operation programs.
Working Mode
Battery
Type
LiPo
LiHV
Lilon
LiFe
NiMH
NiCd
Pb
Balance Charge
Charge
Fast Charge
Discharge
Storage
Charge
Auto Charge
Cycle Charge/
Discharge
Re-Peak Charge
Discharge
Charge
Discharge
AGM Charge
Cold Charge
This mode is for balancing charge the battery based on the charging rate the user
set. It can balance each cells of the battery.
This mode is for charging LiPo/LiHV/LiFe/LiIon battery based on the charging rate
the user set.
This mode is for fast charging LiPo/LiHV/LiFe/LiIon battery based on the charging
rate the user set.
This mode is for discharging LiPo/LiHV/LiFe/LiIon battery based on the discharging
rate the user set.
This mode is for storing the battery via charging or discharging its votlage to a
specific storage value.
This mode is for charging NiMH/NiCd battery based on the charging rate the user
set.
In this program the charger detects the condition of the battery which is connected
to the output and automatically charges the battery.
Note: you should set up the upper limit of the charge current to avoid damage by
excessive feeding current. Some batteries of low resistance and capacity can lead
to higher current.
1 to 5 cyclic and continuous process of charge>discharge or discharge>charge is
operable for battery refreshing and balancing to stimulate the battery's activity.
In re-peak charge mode, the charger can peak charge the battery once, twice or
three times in a row automatically. This is good for confirming the battery is fully
charged, and for checking how well the battery receives fast charges.
This mode is for discharging NiMH/NiCd battery based on the discharging rate the
user set.
This mode is for charging Pb battery based on the charging rate the user set.
This mode is for discharging Pb battery based on the discharging rate the user set.
This mode is for charging AGM battery based on the charging rate the user set.
This mode is for charging Pb battery under a low temperature(0℃)based on the
charging rate the user set.
Description

SKYRC T400Q 10.
SKYRC T400Q Instruction Manual
Lithium Battery Program (LiPo/LiFe/Lilon/LiHV)
1, A memory profile is available for setting and storing pertinent information for up to 40 different
program sets; each port can store 10 programs. Once a battery program is stored into memory,
it will be retained until changed again manually. Recalling a program memory number makes the
charger instantlyready to go!
2, If you do not wish to use the battery program memories, this charger can be manually set before
each use.
The following flowchart shows how the program is set manually:
PORT: A Port Select
Battery Type Select
Mode Select
Battery Setting
Program Start
Charging Status Monitor
Short-press the PORT button to switch between A, B, C and D ports, you will
see the port info with the arrow as the chart shown.
The default port is A. Please ensure the port selected is the same as the one
that your battery connected. Also the main and balance port are connected to
the same port.
Press INC and DEC to go through all the battery types and press ENTER/Start
to enter LiPo BATT Program.
Press INC and DEC to go through all the modes and press ENTER/Start to enter
LiPo Balance Charge Mode.
Press ENTER/Start button, the present value will start to blink. Press INC and
DEC to change the value and press
ENTER/Start to confirm your setting. At the same time, the battery pack’s cell
count will start to blink, press INC and DEC to change the value and press
ENTER/Start to confirm your setting.
Press and hold ENTER/Start for 3 seconds to start the program.
During charge process, real-time status will be shown as seen on the left.
The charger is detecting the battery cell.
R shows the number of cells detected by the charger and S is the number of
cells set by you on the previous screen. If
the two numbers are not identical, press STOP to go back to the previous screen
to recheck the number of cells of the
battery pack that you set before going ahead. If the two numbers are identical,
press ENTER/Start to start the charging process.

.11 SKYRC T400Q
SKYRC T400Q Instruction Manual
Program Complete
Program Stop
Once the battery is fully charged, the screen will read “END:FINISH” and the
charger will emit a ringing sound. The charger also displays battery voltage,
charged capacity and elapsed time.
Press INC or DEC during the charging or discharging process to view further pertinent information
on the LCD screen.
During the charging process, press STOP to stop the charging process.
Please scan and watch the tutorial video about how to
charge LiPo battery in balance mode.
Real-time status: battery type, battery cell count, charge current, battery pack
total voltage,working mode, elapsed time and charged capacity.
Voltage of each cell in the battery pack when the battery is connected with
balance lead.
Charged capacity percentage and average cell voltage of the battery pack.
Final voltage when the program ends.
Input voltage
Internal temperature
Safety timer ON and duration of time in minutes
Capacity cut-off ON and value of the set capacity limit.
VARIOUS INFORMATION DURING THE PROCESS
Int. Temp 37°C

SKYRC T400Q 12.
SKYRC T400Q Instruction Manual
Battery Type Select
Press INC and DEC to go through all the programs and press ENTER/Start to
enter NiMH BATT Program.
Press INC and DEC to go through all the modes and press ENTER/Start to
select, and then the amp rate value will begin blinking. Use the DEC or INC
button to adjust the value to the desired rate. Follow the instructions provided on
your battery when setting the charge current. Press and hold the ENTER/Start
button for 3 seconds to start charging.
After selecting the correct battery type, use the INC or DEC button to change the
charge mode to the Auto CHARGE
setting. Press the ENTER/Start button and the amp rate value will begin flashing.
Use the INC or DEC button to adjust the value to the desired rate. Follow the
instructions provided on your battery when setting the upper charge amperage
rate.
Press and hold the ENTER/Start button for 3 seconds to start charging.
Once charging has commenced, the charger will display the following real-
time information: battery type, charging current, battery voltage, working mode,
elapsed time and charged capacity.
Once the battery is fully charged, the screen will read "END: FINISH" and the
charger will emit a ringing sound. You can press the STOP button at any time
during the charging process to stop charging.
The T400Q offers the following NiMH/NiCd charge modes: Charge, Auto Charge, Discharge, Re-
Peak and Cycle.
In this mode, the charger automatically detects the connected NiMH or NiCD battery and
determines the proper full charge and cut-off thresholds. Setting the upper charge current limit for
safe levels based on your battery specifications will ensure safe
charging of your specific battery. If you are unsure of the maximum allowable charge rates, set the
charger to a maximum of 1C (battery mAh/1000, e.g. 3200mAh = 3.2A).
NiMH/NiCd Battery Program
NiMH/NiCd Charge Mode
NiMH/NiCd Auto Charge Mode
BEFORE YOU BEGIN CHARGING YOUR BATTERY, MAKE SURE YOU ARE
CHARGING NIMH/NICD BATTERIES. CHARGING LIPO BATTERY UNDER NIMH/
NICD BATTERY PROGRAM WILL CAUSE FIRE.
BATT/PROGRAM
BATT MEMORY
NiMH CHARGER
CURRENT 2.0A
[ END: FINISH ]
16.8V 2600mAh
[ TIME: 00: 45: 32 ]
16.8V 2600mAh

.13 SKYRC T400Q
SKYRC T400Q Instruction Manual
Once charging has commenced, the charger will display the following real-time
information: battery type, charging
current, battery voltage, elapsed time and charged capacity.
Press and hold the ENTER/Start button for 3 seconds to start discharging. Once
discharging has commenced, the charger will display the following real-time
information: battery type, discharging current, battery voltage, working mode,
elapsed time and discharged capacity.
When discharging is complete, the screen will read “END: CUTOFF-VOL” and
the charger will emit a ringing sound.
The charger will display the elapsed time, end voltage and the discharged
capacity in mAh.
You can press the STOP button at any time during the discharging process to
stop the discharge process.
After selecting the correct battery type, use the INC or DEC button to select the
“RE-PEAK” mode. Press the ENTER/Start button and the Re-peak cycle number
1 begins to flash on the screen. Use the INC or DEC button to scroll through
the cycle count and set a number between 1 and 3. Press and hold the START
button for 3 seconds to start the re-peak process.
Applicable to NiMH and NiCD batteries only, in re-peak mode the charger can peak charge the
battery once, twice, or three times in a row automatically. This process is good for confirming that
the battery is fully charged and for verifying how well the
battery can accept a fast charge. A five-minute cool-down delay occurs after each repeak charge.
Once the battery is fully charged, the screen will read “END: FINISH” and the
charger will emit a ringing sound. Youcan press the STOP button at any time
during the charging process to stop charging.
After selecting the correct battery type, use the INC or DEC button to select the
DISCHARGE mode. Press the ENTER/Start
button and the amp rate value will begin flashing. Use the INC or DEC buttons
to adjust the value to the desired discharge rate. Press the ENTER/Start button
again and the voltage cut-off will begin to flash. Use the INC or DEC button
to adjust the value to the desired rate.
Follow the instructions provided on your battery when setting the voltage cut-
off. The T400Q will stop discharging when the battery has reached the preset
voltage cut-off.
[ END: FINISH ]
16.8V 2600mAh
[ END: CUTOFF - VOL ]
16.79V 00261mAh
[ TIME: 00: 45: 32 ]
16.8V 2600mAh
NiMH/NiCd Discharge Mode
NiMH/NiCd Re-Peak Mode

SKYRC T400Q 14.
SKYRC T400Q Instruction Manual
Once the Re-Peak process has begun, the charger will display the following real-
time information: battery type, charging current, battery voltage, elapsed time
and charged capacity. Once the Re-Peak process has completed, the screen will
read RE-PEAK FINISH and the charger will emit a ringing sound. The charger
will display the charged or discharged capacity of the last cycle.
The CHG>DCHG option will first charge the battery and then discharge the
battery. If this screen does not show your desired cycling option, press the
ENTER/Start button once and this setting will begin flashing. Use the INC or
DEC button to change this setting.
Pressing the START button again will cause the cycle count to begin flashing.
Use the INC or DEC button to change this to the number of cycles you want
the T400Q to run. The T400Q can cycle the battery a maximum of 5 times
consecutively. Press and hold the ENTER/Start button for 3 seconds to start the
Cycle Mode.
Once cycling has commenced, the charger will display the following real-time
information: battery type, charging/discharging current, battery voltage, working
mode, elapsed time and charged/discharged capacity. You will also see D>C or
C>D. This will indicate which cycling order you have chosen. Either “D“ or “C“
will be flashing. This flashing indicates which part of the cycle is currently being
executed.
Once the Cycle process has completed, the screen will read CYCLES FINISH
and the charger will emit a ringing sound. The charger will display the charged or
discharged capacity of the last cycle.
After selecting the correct battery type, use the INC or DEC button to select the
CYCLE mode. The Cycle Mode gives you two cycling options: DCHG>CHG or
CHG>DCHG. The DCHG>CHG option will first discharge the battery andthen
recharge the battery.
The T400Q makes cycling of NiMH/NiCd batteries easy. The process of discharging and recharging
(cycling) can be performed automatically with one simple step and will improve the performance of
NiMH/NiCd batteries. We strongly recommend
cycling any battery that has been discharged and stored for a period of time. This will increase the
remaining usable battery life and also improve the battery performance.
During the NiMH/NiCd battery charging/discharging process, the T400Q can display a variety of
information. Using the INC or DEC buttons, you can also view the following information:
Delta Peak Voltage
Sensitivity Setting
Input Voltage
Safety
Timer Setting
Capacity
Limit Setting
Internal
Temperature
NiMH/NiCd Cycle Mode
Additional NiMH/NiCd Process Information
NiMH 1.3A 10.42V
RPC 004:04 00686
Int. Temp 37°C

.15 SKYRC T400Q
SKYRC T400Q Instruction Manual
Internal
Temperature
After selecting the correct battery type, use the INC or DEC button to change it
to the NORMAL CHG mode.
Press the ENTER/Start button and the amp rate value will begin flashing. Use
the INC or DEC buttons to adjust the value to the desired charge rate. The amp
rate should be set to 1/10th of capacity. For example, if you are charging a 20Ah
battery the charge rate should be set to 2A. Follow the instructions provided on
your battery when setting the amp rate.
Press the ENTER/Start button again and the nominal battery pack voltage will
begin flashing. Use the INC or DEC button to set the voltage and the number of
cells. Press and hold the ENTER/Start button for 3 seconds to start charging.
After selecting the correct battery type, use the INC or DEC button to change it
to the AGM CHARGE mode. Press the ENTER/Start button and the amp rate
value will begin flashing. Use the INC or DEC buttons to adjust the value to
the desired charge rate. The amp rate should be set to 1/10th of capacity. For
example, if you are charging a 20Ah battery the charge rate should be set to 2A.
Follow the instructions provided on your battery when setting the amp rate.
Press the ENTER/Start button again and the nominal battery pack voltage will
begin flashing. Use the INC or DEC button to set the voltage and the number of
cells. Press and hold the ENTER/Start button for 3 seconds to start charging.
Once charging has commenced, the charger will display the following real-
time information: battery type, charging current, battery voltage, working mode,
elapsed time and charged capacity.
When charging is complete, the screen will read FINISHED and the charger will
emit a ringing sound.
Once charging has commenced, the charger will display the following real-
time information: battery type, charging current, battery voltage, working mode,
elapsed time and charged capacity.
When charging is complete, the screen will read FINISHED and the charger will
emit a ringing sound.
This program is only suitable for charging Pb(lead-acid) batteries with nominal voltage ranging from
2 to 20V which are significantly different from NiMH/NiCd batteries. Pb batteries are suggested
to charge with a low current of 0.1C and cannot be used for fast charging. Please follow the
instructions provided by the battery manufacturer. The T400Q offers the following Pb charge
modes: Charge and Discharge.
Pb Lead-Acid Battery Program
Pb Charge Mode
Pb AGM Charge Mode

SKYRC T400Q 16.
SKYRC T400Q Instruction Manual
After selecting the correct battery type, use the INC or DEC button to change it
to the Pb COLD CHG mode. Press the ENTER/Start button and the amp rate
value will begin flashing. Use the INC or DEC buttons to adjust the value to
the desired charge rate. The amp rate should be set to 1/10th of capacity. For
example, if you are charging a 20Ah battery the charge rate should be set to 2A.
Follow the instructions provided on your battery when setting the amp rate.
Press the ENTER/Start button again and the nominal battery pack voltage will
begin flashing. Use the INC or DEC button to set the voltage and the number of
cells. Press and hold the ENTER/Start button for 3 seconds to start charging.
After selecting the correct battery type, use the INC or DEC button to change
it to the Pb Discharge mode. Press the ENTER/Start button and the amp rate
value will begin flashing. Use the INC or DEC buttons to adjust the value to the
desired discharge rate. Follow the instructions provided on your battery when
setting the amp rate.
Press the ENTER/Start button again and the nominal battery pack voltage will
begin flashing. Use the INC or DEC button to set the voltage and the number of
cells. Press and hold the ENTER/Start button for 3 seconds to start discharging.
Once discharging has commenced, the charger will display the following real-
time information: battery type, discharging current, battery voltage, working
mode, elapsed time and discharged capacity.
When charging is complete, the screen will read FINISHED and the charger will
emit a ringing sound.
Once charging has commenced, the charger will display the following real-
time information: battery type, charging current, battery voltage, working mode,
elapsed time and charged capacity.
When charging is complete, the screen will read FINISHED and the charger will
emit a ringing sound.
Pb Cold Charge Mode
Pb Discharge Mode
Additional Pb Process Information
Internal
Temperature
Input
Voltage
Capacity Limit
Setting
Safety Timer
Setting
Int. Temp 37°C
During the Pb battery charging/discharging process, the T400Q can display a variety of information.
Using the INC or DEC buttons you can also view the following information:

.17 SKYRC T400Q
SKYRC T400Q Instruction Manual
Battery Memory Set and Call Out
1, Battery Memory Set
The charger can store up to 10 different charge/discharge profiles on each port for your
convenience, and the stored profiles can be recalled quickly without having to go through the setup
process. When you want to alter the parameter value in the program, press ENTER/Start to make
it blink then change the value with INC or DEC. The value will be stored by pressing ENTER/Start
once.
Note: All following screen are taking 2S(7.4V) LiPo battery for example.
Enter the battery memory program.
(10 different charge/discharge profiles can be stored on each port).
Set the battery type(LiPo/LiHV/LiFe/LiIon/NiMH/NiCd/Pb).
Set the voltage and number of cells(1-6S).
Set the charge rate (0.1-12.0A).
Set the discharge rate (0.1A-2.0A).
Set the discharge voltage(3.0-3.3V/Cell).
Set the terminal voltage(4.18-4.25V).
Press ENTER/Start to save program.
Indicate the charge and discharge program of the saved profile. Press the
ENTER/Start for 3 seconds to call out the memory.

SKYRC T400Q 18.
SKYRC T400Q Instruction Manual
2, Battery Memory Call Out
Press ENTER/Start to enter into the battery memory program.
Press INC or DEC to select the stored profile.
Press and hold ENTER/Start for 3 seconds to start the program.
[ BATT MEMORY 1]
C:5.0A D:2.0A
[ BATT MEMORY 1]
C:5.0A D:2.0A
DEC
INC
START/
ENTER
>2 Seconds
BATT/PROGRAM
BATT MEMORY
System Setting
It will be operated with the default value of the essential user settings when it is powered on for the
first time.The screen displays the following information in sequence and the user can change the
value of parameter on each screen.
When you want to alter the parameter value in the program, press ENTER/Start to make it blink
then change the value with INC or DEC. The valuewill be stored by pressing ENTER/Start once.
SELECTION
ITEM
OFF/
ON
(120 Min)
OFF/
ON
(100-50000 mAh)
Celsius
Fahrenheit
1-60Min
Default:
4mV/Cell
3-15mV/Cell
OFF/ON
10.0-11.0V
When you start a charge process, the internal safety timer
automatically starts running at the same time. This is programmed
to prevent overcharge the battery if it proves to be faulty, or if the
termination circuit cannot detect the battery full.
The value for the safety timer should be generous enough to allow a
full charge of the battery.
This program sets the maximum charge capacity that will be
supplied to the battery during charge. If the delta peak voltage is not
detected nor the safety timer expired by any reason, this feature will
automatically stop the process at the selected capacity value.
You can choose the temperature displayed by Celsius or Fahrenheit
as you like.
A rest time allowing the battery to cool down between charging/
discharging cycle.
This program is for NiMH/NiCd battery only. When the charger
detects the delta peak value reaches the value you set, the charger
will say the battery is fully charged.
The beep sounds at every time touching the buttons to conrm your
action. The beep or melody sounded at various times during operation
to alert different mode changes.
There will be error message when DC input voltage is lower than the
preset value.
Press ENTER to load factory default setting.
It indicates the hardware and rmware version.
DESCRIPTION
NIMH SENSITIUITY
D:PEAK 4MU
NICD SENSITIUITY
D:PEAK 4MU
DC INPUT LOW
CUT-OFF 11.0V
LOAD FACTORY SET
ENTER
UERSION
HW:1.00 SW:1.00