Hi-Tec X4 AC Pro User manual

1
INSTRUCTION MANUAL
WARNING: THE CHARGING AND DISCHARGING OF RC HOBBY BATTERIES CAN BE DANGEROUS. FAILURE TO FOLLOW
THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL MAY RESULT IN PROPERTY DAMAGE AND/OR LOSS OF LIFE.

2
Table of Contents
Table of Contents:
Introduction.............................................................................................................................03
Warning and Safety Notes................................................................................................04
Charger Layout.......................................................................................................................08
Specications...........................................................................................................................09
Features.....................................................................................................................................10
Power Distribution................................................................................................................12
Power Connections...............................................................................................................13
Battery Connections.............................................................................................................14
Getting Started ......................................................................................................................15
Operation Flowchart...........................................................................................................17
Lithium Battery Program [LiP0/LiHV/LiFe/Lilon].............................................................18
NiMH/NiCd Battery Program............................................................................................23
Pb Lead-Acid Battery Program.......................................................................................28
System Settings.....................................................................................................................30
Memory Preset - Data Store/Load.................................................................................32
Battery Resistance Meter...................................................................................................34
X4 AC Pro Software and Smartphone Apps..............................................................37
Warranty and Service...........................................................................................................38

3
Introduction
Congratulations on your choice of the X4 AC Pro charger from Hitec RCD, USA.
The X4 AC Pro is a high-performance, microprocessor-controlled charger/
discharger with battery management capabilities that are suitable for use with
most popular battery types. The X4 AC Pro also features integrated balancing
for six-cell Lithium-Polymer (LiPo), Lithium-Ferrite (LiFe) and Lithium-Ion (Li-
Ion), as well as the latest high voltage Lithium-Polymer (LiHV) batteries.
Please read this entire operating manual before using the X4 AC Pro Charger.
If you are unsure of its proper operation after reading the manual, please seek
advice from an experienced hobbyist or someone familiar with proper battery
charging procedures.
THE CHARGING AND DISCHARGING OF RC HOBBY BATTERIES CAN BE
DANGEROUS. FAILURE TO FOLLOW THESE EXPLICIT WARNINGS CAN
RESULT IN PROPERTY DAMAGE AND/OR LOSS OF LIFE.
ANEVER LEAVE YOUR CHARGER UNATTENDED WHILE IN OPERATION.
ANEVER CHARGE ON OR AROUND COMBUSTIBLE MATERIALS.
ANEVER CHARGE A DAMAGED BATTERY PACK.
ALOW COST, NO-NAME BATTERY PACKS POSE THE MOST DANGER. WE
RECOMMEND YOU ONLY USE BATTERY PACKS THAT ARE SOLD AND
WARRANTED BY A REPUTABLE COMPANY.
AIT IS HIGHLY RECOMMENDED THAT YOU UTILIZE A SAFETY DEVICE SUCH
AS A STEEL CASE OR LIPO SACK™ WHILE CHARGING LITHIUM CHEMISTRY
BATTERIES.
AIT IS HIGHLY RECOMMENDED THAT YOU KEEP AN OPERABLE“CLASS A”
FIRE EXTINGUISHER IN THE CHARGING AREA.
FAILURE TO FOLLOW THESE WARNINGS CAN BE CONSIDERED
NEGLIGENCE BY THE OPERATOR AND MAY NEGATE ANY CLAIMS FOR
DAMAGES INCURRED.
Hitec RCD USA will not be held responsible for any damages or injuries that
may occur by persons who fail to follow these warnings or who fail to properly
follow the instructions in this manual.
Warning

4
These warnings and safety notes are of the utmost importance. You must fol-
low these instructions for maximum safety. Failure to do so can damage the
charger and the battery and in the worst cases, may cause a re.
NEVER LEAVE THE CHARGER UNATTENDED WHILE IT IS CONNECTED
TO ITS POWER SOURCE. IF ANY MALFUNCTION IS FOUND, TERMINATE
THE PROCESS AT ONCE AND REFER TO THE OPERATION MANUAL.
AThe allowable AC input voltage is 100 - 240V AC
AThe allowable DC input voltage is 11-18V DC.
AKeep the charger away from dust, damp, rain, heat, direct sunlight and
excessive vibration.
AIf the charger is dropped or suers any type of impact, it should be inspect-
ed by an authorized service station before using it again.
AThis charger and the battery should be put on a heat-resistant, non-am-
mable and non-conductive surface.
ANever place a charger on a car seat, carpet or similar surface. Keep all am-
mable volatile materials away from the operating area.
AMake sure you know the specications of the battery to be charged or dis-
charged to ensure it meets the requirements of this charger. If the program
is set up incorrectly, the battery and charger can be damaged.
AFire or explosion can occur due to overcharging.
ATo avoid a short circuit between the charge lead, always connect the
charge cable to the charger rst, then connect the battery. Reverse the
sequence when disconnecting.
Warning: Be sure to read this section for your own safety.
Tip: This section will help you maximize the performance of
your charger.
Note: This section will provide more detailed explanations.
Caution: Be sure to read this section to prevent accidents
and damage to your charger.
Warnings and Safety Notes
Caution
TipWarning
Warning
Note

5
ANever attempt to charge or discharge the following types of batteries:
• A battery tted with an integral charge circuit or a protection circuit
• A battery pack which consists of dierent types of cells (including dif-
ferent manufacturer’s cells)
• A battery that is already fully charged or just slightly discharged and
non-rechargeable batteries (these pose an explosion hazard)
• A faulty or damaged battery
• Batteries installed in a device or which are electrically linked to other
components
• Batteries that are not expressly stated by the manufacturer to be suit-
able for the currents the charger delivers during the charge process
PLEASE BEAR IN MIND THE FOLLOWING POINTS BEFORE YOU
COMMENCE CHARGING:
• Did you select the appropriate program suitable for the type of battery you
are charging?
• Did you set up the 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 rm and secure?
• Make sure there are no intermittent contacts at any point in the circuit.
Warnings and Safety Notes

6
Warnings and Safety Notes
LiPo LiPo HV LiIon LiFe NiCd NiMH Pb
Nominal
Voltage
3.7V/cell 3.8V/cell 3.6V/cell 3.3V/cell 1.2V/cell 1.2V/cell 2.0V/cell
Max. Charge
Voltage
4.2V/cell 4.35V/cell 4.1V/cell 3.6V/cell 1.5V/cell 1.5V/cell 2.46V/cell
Storage
Voltage
3.8V/cell 3.85V/cell 3.7V/cell 3.3V/cell n/a n/a n/a
Allowable Fast
Charge
≤ 1C ≤ 1C ≤ 1C ≤ 4C ≤ 1-2C ≤ 1-2C ≤ .04C
Min. Discharge
Voltage
3.0-3.3V/cell 3.1-3.4V/cell 2.9-3.2V/cell 2.6-2.9V/cell 0.1-1.1V/cell 0.1-1.1V/cell 1.8V/cell
Standard Battery Parameters
WHEN ADJUSTING YOUR X4 AC PRO CHARGING PARAMETERS, BE
SURE YOU SELECT THE PROPER BATTERY TYPE AND CELL VOLTAGE
FOR THE TYPE OF CELL YOU ARE CHARGING. CHARGING BATTERIES
WITH THE WRONG SETTINGS MAY CAUSE THE CELLS TO BURST, CATCH
FIRE OR EXPLODE.
Charging
Before charging your batteries, it is critical that you determine the maximum
allowable charge rate for your batteries. The X4 AC Pro is capable of
charging at high rates that may not be suitable or safe for your particular
batteries. For example, Lithium cells are typically safe to charge at 1C, or the
total mAh÷1000. A 1200mAh battery would have a 1C charge rate of 1.2
amps. A 4200mAh battery would have a 1C charge rate of 4.2 amps. Some
manufacturers are oering Lithium cells that can be charged at greater than
1C but this should ALWAYS be veried before charging a Lithium battery at
rates higher than 1C. Voltage is just as critical as the charging amperage rate
and this is determined by the number of cells in series, or“S”. For example, a
3S LiPo is rated at 11.1 volts (“S”multiplied by a single LiPo cell with a nominal
voltage of 3.7 volts DC. 3 cells x 3.7 volts each equals 11.1 volts DC).
Connect the battery’s main leads to the charger output: red is positive
and black is negative. Keep in mind that the gauge or thickness of your
charging leads from the X4 AC Pro to your battery must be of an acceptable
current rating to handle the applied charge current. For maximum safety
and charging eectiveness, always match or exceed the main battery lead
rating when assembling or selecting your charging leads. If you charge a
Warning

7
battery at a high current rate (amperage) with a charging lead not rated for
the chosen amperage, the wire could get hot, catch re, short out and/or
potentially destroy your battery and the charger. When in doubt, always use
a higher gauge wire (lower AWG number). It is common to see charging leads
constructed of 14AWG, 16AWG or 18AWG wire.
Always refer to recommendations from your battery manufacturer for your
specic battery type and size before initiating a charge or discharge process.
Do not attempt to disassemble or modify Lithium or Lead-Acid battery packs.
Discharging
The X4 AC Pro discharging functions are for two specic purposes:
• Refreshing the capacity of a Nickel-based battery that has lost capacity over
time (NiMH or NiCd).
• Reducing the voltage of a Lithium battery for safe storage.
LITHIUM CHEMISTRY BATTERY PACKS SHOULD ONLY BE DISCHARGED
TO THEIR MINIMUM SAFE VOLTAGE, NO LOWER. DEEP DISCHARGING
A LITHIUM CELL WILL DO PERMANENT DAMAGE. REFER TO THE
STANDARD BATTERY PARAMETERS TABLE ON PAGE 6 OF THIS MANUAL
FOR MINIMUM DISCHARGE VOLTAGES.
LiPo & LiHV Charge/Discharge Cycling
Lithium batteries are known to reach full capacity after a break-in period of
about 10 charge/discharge cycles. We do not recommend you use the X4 AC
Pro charger to do this; normal use and recharging will achieve the same results.
If you wish to perform a Lithium break-in on the bench with the X4 AC Pro
discharging to minimum acceptable voltages and performing a balance charge
at 1C maximum rate is recommended. If you choose to break in your Lithium
batteries under normal use, charging at only 1C for the rst ten cycles will help
ensure full performance and service life from your Lithium cells.
Warnings and Safety Notes
Warning

8
Charger Layout
Channel D
LCD Display
Micro USB Port for
PC Link
USB Port
Channel C
Channel A
Cooling Fan
Channel B
Cooling fan
DC Input
11-18V
Power
Switch
AC Input
100-240V
A Universal Balancing Cord
B. XH Type Balancing Cord
C. XT-60 Charge Cable
D. 2 Pin T-type Charge Cable
E. 2 x Bare Charge Cables
F. Receiver Battery Charge Cable
G. DC Power Source Cable
H. AC Power Cord
Included Accessories C
AB
HG
DEF

9
X4 AC Pro Specications
AC Input 100 - 240 Volts AC
DC Input 11 - 18 x Volts DC
Total Charge Circuit Power on AC Power 200 Watts with Power Distribution
AC Power Distribution Channels A & C 100 Watts Total
Channels B & C 100 Watts Total
Power Distribution Adjustable Range Channels A and B 50 ~ 100 Watts
Channels C and D 0 ~ 50 Watts
Total Charge Circuit Power on DC Power 300 Watts Total Power
(CHs A & B 100W each / CHs C & D 50W each )
Charge Current Channels A & B: 0.1 ~ 10.0 Amps
Channels C & D: 0.1 ~ 5.0 Amps
Charge Voltages
NiMH / NiCd: Uses Delta Peak Detection
LiPo: 4.18 ~ 4.25 V/Cell LiHV: 4.25 ~ 4.35 V/Cell
LiFe: 3.58 ~ 3.7 V/Cell LiIon: 4.08 ~ 4.2 V/Cell
Discharge Wattage 10 Watts per Channel
Discharge Current 0.1 ~ 2.0 Amps per Channel
Discharge Cut-o Voltages
NiMH / NiCd: 0.1 ~ 1.1 Volts per Cell
LiPo: 3.0 ~ 3.3 V/Cell LiHV: 3.1 ~ 3.4 V/Cell
LiFe: 2.6 ~ 2.9 V/Cell LiIon: 2.9 ~ 3.4 V/Cell
LiPo, LiHV, LiFe and LiIon Cell Count 1 ~ 6
Balance Current for LiXXx Balance 200 mAh
NiMH / NiCd Cell Count 1 ~ 15 cells
Pb/ Lead Acid Voltage Range 2 ~ 20 VDC
Battery Capacity Range 100 ~ 50,000 mAh
Auxillary Output 5 Volt 2.1 Amp DC USB Device Charge Port
Communication Methods USB Port for PC Control & Firmware Upgrades
Bluetooth 4.0 for Smartphone Apps
Dimensions 3.8 x 7.2 x 2.8 in.
97 x 182 x 71 mm.
Weight 47 oz. / 1335 g.

10
Features
Four Channel Charger:
The X4 AC Pro allows you to connect up to 4 batteries of varying chemistries
(NiMH/NiCd/LiPo/LiFe/Lilon/LiHV/Pb) to any of the charging channels. Each
channel can perform a process independently of each other.
Dual Input and Power Distribution:
The X4 AC Pro has a dual AC/DC input comprised of AC 100-240V and DC 11-
18V. In DC mode, the power of each channel A&B is 100W each with an overall
power of 200W, Channel C&D is 50W each with an overall power of 100W (total
charger power is 300W). Power distribution is supported in AC mode. For ex-
ample, if Channel A is 70W and Channel B is 30W, total power is 100W.
Optimized Operating Software:
The X4 AC Pro features an AUTO function that sets the feeding current during
charging or discharging. It can also disconnect the circuit automatically
and sound an alarm if an abnormal reaction has been detected. Each
programming feature of your X4 AC Pro is controlled by a two way linkage and
communication and is completely customizable to the user’s preferences.
Battery Memory (Data Store/Load):
The charger can store up to 10 unique charge/discharge proles for each
channel and lets you recall the data from each program setting at any time.
PC Control Software“Charge Master”:
Equipped with free“Charge Master” software, the v AC Pro gives you the
unparalleled ability to operate the charger via your personal computer. You
can monitor pack voltage, cell voltage, and other data during battery charging
or view the charge data in real-time graphs. The“Charge Master” gives you the
option to initiate and update rmware as well.
Smart Phone Control via Wi-Fi Module (iOS and Android):
Finally, a battery charger with its own apps! This charger has built-in Bluetooth
4.0 and can be operated using a smart phone.
Internal Independent Lithium Battery Balancer
The X4 AC Pro features a built-in cell voltage balancer so you don’t need to fuss
with external balancers while charging or discharging.

11
Re-Peak Mode of NiMH/NiCd Battery:
In re-peak charge mode, the charger can peak charge the battery once, twice,
or three times in a row automatically. This function is useful for ensuring a full
battery charge.
Delta-Peak Sensitivity for NiMH/NiCd:
This automatic charge termination program is based on the principle of
the Delta-peak voltage detection. When the battery’s voltage exceeds the
threshold, the process will be terminated automatically.
Cyclic Charging/Discharging:
1 to 5 cyclic and continuous charge > discharge or discharge > charge sessions
are optimal for battery performance and balancing.
Automatic Charging Current Limit:
You can set the upper limit of the charging current when charging your NiMH
or NiCd battery. The ‘AUTO’charging mode, however, is recommended when
charging NiMH batteries with low impedance and capacity.
LiPo Battery Meter:
The user can check the battery’s total voltage, the highest voltage, the lowest
voltage and the voltage of each cell.
Battery Internal Resistance Meter:
The user can check the battery’s total internal resistance and the internal
resistance of each cell.
Capacity Limit:
The charging capacity is always calculated as the charging current multiplied
by time. If the charging capacity exceeds the limit, the process will
automatically terminate according to the maximum value previously set.
Temperature Threshold*:
The battery’s internal chemical reaction will cause the temperature of
the battery to rise. If the temperature limit is reached, the process will be
terminated.
* This function is available by connecting an optional temperature probe which
is available as a separate purchase.
Features (continued)

12
Power Distribution
Powered by AC Household Current:
In AC mode, the X4 AC Pro has a maximum charging output of 200 watts total
power. This charge output can be allocated dierently to each channel utilizing
the Power Distribution feature.
LIPO BALANCE
2.0A 7.4V(2S)
A
B
C
LIPO BALANCE
2.0A 7.4V(2S)
D
AC Max Power Set
65W
AC Max Power Set
35W
100W
2.0A 7.4V(2S)
B
CLIPO BALANCE
2.0A 7.4V(2S)
D
AC Max Power Set
50W
AC Max Power Set
50W
100W
LIPO BALANCE
A
To adjust the wattage between channels, go to BATT/PROGRAM menu and use
the INC. – or DEC + buttons to get to the SYSTEM SETTINGS, press ENTER/Start
to enter the System settings menu and use the – or + buttons to scroll to the AC
Max Power Set screen. Press ENTER/Start and the wattage amount will begin to
blink. Use the – or + buttons to adjust the wattage for that channel. Adjusting
power on one channel will also adjust the power on the corresponding linked
channel . The X4 AC Pro links channels A with C and B with D. The adjustment
ranges for Channels A & B are 50 - 100 watts while the adjustment range for
channels C and D are 0 - 50 watts.
Powered by an Automotive Battery or DC Power Supply:
In DC mode, the X4 AC Pro has a maximum charging output of 300 watts total.
This is allocated at 100 watts per channel on channels A and B and 50 watts per
channel on channels C and D. These are xed values and cannot be adjusted.
It is extremely important that you use either a fully charged 13.8V car battery
or a high quality AC/DC power supply in the range of 11-18V DC output with
minimum power of 350W or higher to ensure a reliable performance.

13
Power Connections
The X4 AC Pro can operate on 100 ~ 240 volts AC household current or from a
11 ~ 18 volts DC power source such as a car battery or DC power supply.
AC 100-240V power source connection.
XT60
12V DC Battery / DC power supply connection.

14
Battery Connections
TO AVOID SHORT CIRCUITS, ALWAYS CONNECT THE CHARGE LEADS
TO THE CHARGER FIRST, AND THEN TO THE BATTERY. REVERSE THE
SEQUENCE WHEN DISCONNECTING THE PACK.
Warning
Lithium Battery Connection With
Balance Adaptor
Battery Connection for
NiMH/NiCD and PB Batteries
2S 3S 4S 5S
6S
1
2
3
4
5
6
BATTERY
DC 11-18V BALANCE
SOCKET
BALANCE ADAPTOR
X1 CHARGER
BALANCE
LEAD
Balance Socket
For safety reasons, the default setting for charging Lithium (LiPo, Lilon, LiFe
and LiHV)batteries is using a balancing connector to connect the battery
and charger in Charge, Fast Charge, Balance Charge and Storage modes. If
your battery does not have a balance adaptor without a balance wire con-
nector, you must disable this function in the system settings as follows.
The balance wire attached to the battery must be connected to the charger
with the black wire aligned with the negative marking. Ensure correct polarity!
NiMH
ON
BAL. Connection
SYTEM SETTINGS
BATT / PROGRAM

15
Available Operations
Depending on the battery type, dierent operations will be available. The
chart on the following page shows which operations are available for the
dierent types of batteries the X4 AC Pro is capable of working with.
Getting Started
Initial Setup of the Charger
After connecting the battery, you are now ready to set up the charger to
charge your specic type of battery. When the charger is rst powered
on, it will start at Channel A. The default mode of the charger is for a
regular charge mode of a 2 Cell (7.4V) 2000 mAh Lithium Polymer battery.
If this is not the battery you plan on working with, then you will need to
make changes to the operation programming based on the following
instruction.
BEFORE SELECTING AN OPERATION, IT IS CRITICAL THAT YOU
KNOW THE TYPE OF BATTERY YOU ARE WORKING WITH AND WHAT
THE MANUFACTURER RECOMMENDATIONS ARE FOR CHARGING OR
DISCHARGING. FAILURE TO FOLLOW THE MANUFACTURERS REC
OMMENDATIONS CAN RESULT IN DAMAGE TO THE BATTERY AND
POSSIBLE EXPLOSION.
Warning
Batt. Type/Stop Button Start/Enter Button
Start the progress of the
current action or cycle into
the next step/screen
Scroll through available menus
or increase parameter values.
Scroll through available menus
or decrease parameter values.
Stop the progress of
the current action
or cycle back to the
previous step/screen. INC. Button
DEC. Button
Input Buttons
The balance wire attached to the battery must be connected to the charger
with the black wire aligned with the negative marking. Ensure correct polarity!
Channel Select
Button

16
Battery Type Process Description
LiPo
Lilon
LiFe
LiHV
CHARGE The charge mode is for charging LiPo/LiFe/LiIon/
LiHV batteries in normal mode.
DISCHARGE This mode is for discharging
LiPo/LiFe/LiIon/LiHV batteries.
STORAGE
This program is for charging or discharging a
lithium battery which will not be used again for
an extended period of time.
FAST CHG
A fast charge will result in a smaller than usual
charging capacity but will reduce the total
charge time.
BAL CHARGE This mode is for balancing the voltage of Lithium
battery cells while charging.
NiMH
NiCd
CHARGE The charger will charge NiMH and NiCd batteries
using the charge current set by the user.
AUTO CHG
In this program, the charger detects the condi-
tion of the connected battery and automatically
charges the battery.
Note: You should set the upper limit of the charge
current to avoid damage by excessive charging current.
The X4 AC Pro may not be able to detect the charge
capacity of low resistance batteries.
DISCHARGE This mode is for discharging a NiMH/NiCd battery
RE-PEAK
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
conrming the battery is fully charged and for
checking how well the battery receives
fast charges.
CYCLE
Automatically charges/discharges the battery up
to 5 times. This process can enhance the perfor-
mance of NiMH/NiCd batteries.
Pb
(Lead Acid)
CHARGE This mode is for charging a Pb battery.
DISCHARGE This mode is for discharging a Pb battery.

17
The ow chart depicts one channel as the example for all channels.
Channels A, B, C and D operate identically.
Operation Flow Chart
Note
BATT/PROGRAM
Pb BATT
ENTER
START
Pb CHARGE
2.0A 2.0V (1P)
DEC
INC
Pb DISCHARGE
0.1A 2.0V (1P)
BATT/PROGRAM
NiCd BATT
NiCd CHARGE
CURRENT 2.0A
ENTER
START
DEC
INC
NiCd DISCHARGE
0.1A CUT: 1.0V
DEC
INC
NiCd CYCLE
CHG>DCHG 1
BATT/PROGRAM
NiMH BATT
ENTER
START
NiMH CHARGE
CURRENT 2.0A
DEC
INC
NiMH DISCHARGE
0.1A CUT: 1.0V
NiMH CYCLE
CHG>DCHG 1
DEC
INC
BATT/PROGRAM
LiPo BATT
LiPo BALANCE CHG
2.0A 7.4V (2S)
LiPo CHARGE
2.0A 7.4V (2S)
LiPo FAST CHARGE
2.0A 7.4V (2S)
LiPo STORAGE
2.0A 7.4V (2S)
LiPo DISCHARGE
2.0A 7.4V (2S)
ENTER
START
DEC
INC
DEC
INC
DEC
INC
DEC
INC
DECINC
DECINC
BATT/PROGRAM
LiFe BATT
Lilo BALANCE CHG
2.0A 7.2V (2S)
Lilo CHARGE
2.0A 7.2V (2S)
Lilo FAST CHARGE
2.0A 7.2V (2S)
Lilo STORAGE
2.0A 7.2V (2S)
Lilo DISCHARGE
2.0A 7.2V (2S)
ENTER
START
DEC
INC
DEC
INC
DEC
INC
DEC
INC
BATT/PROGRAM
LiIo BATT
LiFe BALANCE CHG
2.0A 6.6V (2S)
LiFe CHARGE
2.0A 6.6V (2S)
LiFe FAST CHARGE
2.0A 6.6V (2S)
LiFe STORAGE
2.0A 6.6V (2S)
LiFe DISCHARGE
2.0A 6.6V (2S)
ENTER
START
DEC
INC
DEC
INC
DEC
INC
DEC
INC
DECINC
BATT/PROGRAM
BATT METER
4.20 4.19 4.19 V
0.00 0.00 0.00 V
MAIN 0.00V
H0.000V L0.000V
DEC
INC
DECINC
DECINC
DEC
INC
NiCd RE-PEAK
1
DEC
INC
NiMH RE-PEAK
1
DEC
INC
NiMH Auto CHARGE
CURRENT 2.0A
DEC
INC
NiCd Auto CHARGE
CURRENT 2.0A
DECINC
DECINC
DECINC
LiHV BALANCE CHG
2.0A 7.6V (2S)
LiHV CHARGE
2.0A 7.6V (2S)
LiHV FAST CHARGE
2.0A 7.6V (2S)
LiHV STORAGE
2.0A 7.6V (2S)
LiHV DISCHARGE
2.0A 7.6V (2S)
BATT/PROGRAM
LiHV BATT
ENTER
START
DEC
INC
DEC
INC
DEC
INC
DEC
INC
DECINC
BATT/PROGRAM
BATT MEMORY
ENTER
START
[ BATT MEMORY 1 ]
ENTER SET->
ENTER
START
BATT TYPE
LiPo
DEC
INC
BATT VOLTS
7.4V ( 2S )
DEC
INC
CHARGE CURRENT
4.9A
DEC
INC
DSCH CURRENT
2.2A
DSCH VOLTAGE
3.0V/CELL
TVC=YOUR RISK
4.20V
DEC
INC
ENTER
START
ENTER
START
BATT/PROGRAM
SYSTEM SETTING->
ENTER
START
Stop
Batt Type
DECINC
SAVE PROGRAM
ENTER
SAVE PROGRAM
SAVE….
[ BATT MEMORY 1 ]
LiPo 7.4V (2S )
[ BATT MEMORY 1 ]
C:4.9A D:2.2A
ENTER CHARGER
LOAD……
LiPo BALANCE CHG
4.9A 7.4V(2S)
LiPo CHARGE
4.9A 7.4V(2S)
DEC
INC
LiPo FAST CHARGE
4.9A 7.4V(2S)
DEC
INC
LiPo STORAGE
4.9A 7.4V(2S)
LiPo DISCHARGE
2.2A 7.4V(2S)
DEC
INC
DEC
INC
BATT TYPE
MiMH
DEC
INC
BATT VOLTS
2.4V (2S)
ENTER
START
CHARGE CURRENT
3.3A
DEC
INC
DEC
INC
TRICKLE
100mA
DEC
INC
PEAK DELAY
1Min
DECINC
DSCH CURRENT
2.2A
DEC
INC
DSCH VOLTAGE
1.1V/CELL
SAVE PROGRAM
ENTER
ENTER
START
BATT TYPE
Pb
BATT VOLTS
4.0V (2P)
DEC
INC
CHARGE CURRENT
3.3A
DEC
INC
DSCH CURRENT
1.5A
DEC
INC
DSCH VOLTAGE
1.7V/CELL
DEC
INC
SAVE PROGRAM
ENTER
DECINC
DEC
INC
DEC
INC
DECINC
BATT/PROGRAM
BATT RESISTANCE
DECINC
ENTER
START
005 003 003 mΩ
005 mΩ
DEC
INC
TATAL: 16mΩ
H: 5mΩ L: 3mΩ
ENTER
START
STARG/ENTER>3 Seconds
SAVE PROGRAM
SAVE….
ENTER
START
[ BATT MEMORY 2 ]
NiMH 2.4V (2S )
[ BATT MEMORY 2 ]
C:1.0A D:1.0A
STARG/ENTER>3s
ENTER CHARGER
LOAD……
NiMH CHARGE
CURRENT 1.0A
NiMH Auto CHARGE
CURRENT 1.2A
DEC
INC
DEC
INC
DEC
INC
DEC
INC
NiMH DISCHARGE
1.0A CUT: 2.0V
NiMH RE-PEAK
2
NiMH CYCLE
DCHG>CHG 1
[ BATT MEMORY 2 ]
ENTER SET->
[ BATT MEMORY 3 ]
ENTER SET->
SAVE PROGRAM
SAVE….
ENTER
START
[ BATT MEMORY 3 ]
Pb 4.0V (2S )
[ BATT MEMORY 3 ]
C:3.3A D:1.5A
ENTER CHARGER
LOAD……
Pb CHARGE
3.3A 4.0V(2P)
Pb DISCHARGE
1.5A 4.0V(2P)
Rest Time
CHG>DCHG 10Min
DEC
INC
Safety Timer
ON 120Min
DEC
INC
Capacity Cut-Off
ON 5000mAH
DEC
INC
DECINC
DEC
INC
Temp Cut-Off
ON 50°C 122°F
NiMH Sensitivity
D.Peak Default
DEC
INC
NiCd Sensitivity
D.Peak
Default
Key Beep ON
Buzzer ON
DEC
INC
DEC
INC
Version
HW:1.00 FW: 1.10
Load Factory Set
Enter
DEC
INC
DC Input Low
CUT-OFF 11.0V
AC Max Power Set
50W
DEC
INC
Temperature Unit
Celsius
DEC
INC
ENTER
START
START ENTER > 3s

18
BATT/PROGRAM Select
Press INC and DEC to cycle through all battery types
and press START/ENTER to select the appropriate
battery types to be charged.
BEFORE SELECTING A CHARGE MODE, IT IS CRITICAL THAT YOU SELECT
THE CORRECT TYPE OF LITHIUM BATTERY TO BE CHARGED. FAILURE TO DO
SO CAN RESULT IN DAMAGE TOTHE BATTERY AND POSSIBLE EXPLOSION.
Mode Select
Press INC and DEC to scroll through all available
modes. If you want to balance charge your battery,
select BALANCE mode. Press the START/ENTER button
to conrm the mode of your choice.
This program is only suitable for charging/discharging Lithium chemistry
batteries (LiPo, LiHV, LiIon and LiFe). The X4 AC Pro oers the following lithium
charge modes: Charge, Balance Charge, Fast Charge, Storage and Discharge.
The example shown here if for charging a LiPo battery in Balance Mode.
Whenever a parameter value in the program needs to be adjusted, highlight
the value by pressing the START/Enter button to make it blink; to change the
value press the DEC or INC buttons. The new value will be stored by re-press-
ing the START/Enter button. If there is another parameter to be adjusted as
part of a range on the same screen, it will start blinking after the rst param-
eter value has been conrmed.
BEFORE YOU BEGIN CHARGING YOUR BATTERY, MAKE SURE YOU
HAVE READ AND UNDERSTAND ALL OF THE WARNINGS AND SAFETY
INFORMATION CONTAINED ON PAGES 37.
Warning
Lithium Battery Program
LiPo BATT
BATT/PROGRAM
2.0A 11.1V (3S)
LiPo BALANCE
Warning
Lithium Battery (LiPo, LiHV, LiFe, LiIon) Charge Modes
The following steps will guide you through setting up a Lithium Chemistry Bat-
tery in a Charge Mode. These instructions apply to Charge, Balance Charge, Stor-
age Charge and Fast Charge. For the purpose of this example we will use balance
charge as it is the safest way to charge Lithium Batteries.

19
Now that you have set all the parameters for your battery you are ready to exe-
cute the operation. Now would be a good time to check to make sure the charge
settings are correct and within the battery manufacturers recommendations.
DURING CHARGING/DISCHARGING, THE BATTERY SHOULD BE PLACED
INSIDE A FIRE PROOF/RETARDANT BAG AND ON A FIRE PROOF SUR
FACE, AWAY FROM OTHER COMBUSTIBLE OBJECTS.
Lithium Battery Program (continued)
Battery Cells
Press INC and DEC to scroll through the battery cells
supported by the charger. Press START/ENTER to select
the appropriate cells for your battery.
2.0A 11.1V (3S)
LiPo BALANCE
Program Start
Press and hold the START/ENTER button until you
see “BATTERY CHECK...” followed by the conrmation
screen. This screen displays the number of cells
you set up as “R” and the number of cells detected by
the processor as“S”. If both numbers are identical, you
may press the START button once to conrm and
begin charging. If these numbers do not match, press
the STOP button to return to the previous screen and
carefully check the number of cells before proceeding.
Caution
CONFIRM (ENTER)
R:3SER S:3SER
CANCEL (STOP)
R:3SER S:3SER
LP3s 3.2A 11.87V
BAL 010:01 00609
66
WAIT.....................
BATTERY CHECK
Charge Status Monitor
Use the INC. and DEC. buttons to scroll through the various information dis-
played during the process.
This screen shows the type of battery, number of cells,
charge/discharge current, total voltage of the pack,
type of process, elapsed time and number of mAh fed
into the battery.
Charge Current
Press INC and DEC to adjust the charge current. Press
the START/ENTER button to conrm the setting of
your choice. Adjustment range is 0.1 ~ 10.0 Amps.
2.0A 11.1V (3S)
LiPo BALANCE
SETTING A CHARGE CURRENT THAT IS TOO HIGH CAN HAVE DAN-
GEROUS RESULTS. NEVER EXCEED THE BATTERY MANUFACTUR-
ERS RECOMMENDED CHARGE RATE
Warning

20
66
3.81 3.82 3.81
0.00 0.00 0.00
Fuel = 66%
Cell = 3.98V
66
Lithium Battery Program (continued)
Program Stop
During the charging process, press STOP button to stop the process.
Program Complete
When the charging process is nished, an audible
sound will be heard and the charger will indicate
END: FINSHED. The charger displays the total pack
voltage, total mAh fed into the battery and the
elapsed time of the process.
NOTE: The battery charge indicator displays Green during charging and Red
during discharging.
[ END: FINISH ]
12.60V 02001mAh
TIME: 00:32:15
12.60V 02001mAh
100
100
This screen shows the voltage of each individual cell
when a balancing cable is connected.
Charged capacity percentage and average cell voltage
of the pack.
Lithium Battery (LiPo, LiHV, LiFe, LiIon) Discharge Mode
The following steps will guide you through setting up a Lithium Chemistry Bat-
tery Discharge Mode.
DISCHARGING LITHIUM CHEMISTRY BATTERIES CAN CAUSE PERMANENT
DAMAGE TO THE BATTERY AND IT IS NOT RECOMMENDED FOR
ANYTHING OTHER THAN THE DISPOSAL OF THE BATTERY. IF YOU CHOOSE
TO DISCHARGE YOUR LITHIUM BATTERIES, MAKE SURE TO PAY CLOSE
ATTENTION TO THE MINIMUM VOLTAGE SETTING. IF YOU WANT TO STORE
YOUR BATTERY FOR A LONG PERIOD OF TIME YOU SHOULD UTILIZE THE
STORAGE MODE CHARGE PROGRAM AS THIS IS THE SAFEST METHOD OF
STORING YOUR LITHIUM CHEMISTRY BATTERIES.
BATT/PROGRAM Select
Press INC and DEC to cycle through all battery types
and press START/ENTER to select the appropriate
battery types to be charged.
Discharge Current
Press INC and DEC to adjust the discharge current.
Press the START/ENTER button to conrm the setting
of your choice. Adjustment range is 0.1 ~ 2.0 Amps.
Warning
2.0A 11.1V (3S)
LiPo DISCHARGE
2.0A 11.1V (3S)
LiPo DISCHARGE