Skyrc e6650 User manual

Version 1.0C SkyRC Technology Co., Ltd. 2010
INSTRUCTION MANUAL

- 01 -
TABLE OF CONTENTS
Introduction
Special Features
Lithium Polymer Balance Charge Program Connection Diagram
Warning and Safety Notes
Program Flow Chart
Initial Parameter Setup (Users Set Up)
Lithium (LiPo/Lilon/LiFe) program
Charging Lithium Battery in Charge Mode
Charging Lithium Battery in Balance Mode
Fast Charging of Lithium Battery
Charging Lithium Battery in the Fast Charge Mode
Storage Control of Lithium Battery
Charging Lithium Battery in the Storage Mode
Discharging of Lithium Battery
Voltage Balancing and Monitoring in the Discharge Process
Charging of NiCd/NiMH Battery
Charging NiCd/NiMH Battery in the Charge Mode
Discharge of NiCd/NiMH Battery
Charge/Discharge and Discharge/Charge Cycle of NiCd/NiMH Battery
Charging of the Pb Battery
Charging Pb (lead-acid) Battery in the Charge Mode
Discharging of the Pb Battery
Data Storage Program
Load Data Program
Various Information in the Program
Warning and Error Message
Specifications
Warranty and Service
TABLE OF CONTENTS
02
03
05
06
11
12
15
16
16
17
17
18
18
19
19
20
20
20
21
21
22
22
23
24
25
26
27
27

- 02 -
INTRODUCTION
Thank you for purchasing the e6650 LiPo Balance Charger by
SKYRC.This product is a rapid charger with a high performance
microprocessor and specialized operating software. Please read
this entire operating manual completely and attentively before
using this product, as it covers a wide range of information on
operating and safety or please do use this product in company
with a specialist!
INTRODUCTION
AC Input Power Port
(AC 100-240V, 50/60HZ)
DC Input Power Port
11-18V DC
LCD Display
(16 chr.* 1 line)
Balance
Socket
Output
Charging
Scroll Through
the Main Menu
Stop any Charge
Processes
Alter Values Cells
in Balance Charge Mode
See the Status of Individual
Resume or Start Charge Processes
Confirm an Action
Temperature
Sensor Port
Temperature
Controlled Fan

- 03 -
SPECIAL FEATURES
Optimized operating software
e6650 features the so-called AUTO function that set the feeding
current during the process of charging or discharging. Especially
for Lithium batteries, it can prevent the overcharging which may
lead to an explosion due to the user's fault. It can disconnect the
circuit automatically and alarm once detecting any malfunction.
All the programs of this product were controlled through two way
linkage and communication, to achieve the maximum safety and
minimize the trouble. All the settings can be configured by users!
SPECIAL FEATURES
Internal independent lithium battery balancer
e6650 employs an individual-cell-voltage balancer. It isn’t
necessary to connect an external balancer for balance charging.
Balancing individual cells battery discharging
During the process of discharging, e6650 can monitor and
balance each cell of the battery individually. Error message will
be indicated and the process will be ended automatically if the
voltage of any single one cell is abnormal.
Adaptable to various type of lithium battery
e6650 is adaptable to various types of Lithium batteries, such as
Li-ion, LiPo and the new LiFe series of batteries.
Fast and storage mode of lithium battery
Purposes to charge Lithium battery varies, ‘fast’ charge reduce
the duration of charging, whereas ‘store’ state can control the
final voltage of your battery, so as to store for a long time and
protect useful time of the battery.
Maximum safety
Delta-peak sensitivity: The automatic charge termination program
based on the principle of the Delta-peak voltage detection. When
the battery's voltage exceeds the threshold, the process will be
terminated automatically.

- 04 -
SPECIAL FEATURES
Automatic charging current limit
You can set up the upper limit of the charging current when
charging your NiCd or NiMH battery; it is useful for the NiMH
battery of low impedance and capacity in the 'AUTO' charging
mode.
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 be terminated automatically when you set
the maximum value.
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 optional temperature
probe, which is not included in our package.
Processing time limit:
You can also limit the maximum process time to avoid any
possible defect.
Input power monitoring
To protect the car battery used as DC input power from being
damaged, its voltage keeps being monitored. If it drops below
the lower limit, the process will be ended automatically.
Data store/load
The maximum five batteries’ data can be stored for users’
convenience. You can keep the data pertaining to program
setting of the battery of continuous charging or discharging.
Users can call out these data at any time without any special
program setting.
Cyclic charging/discharging
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.

- 05 -
LITHIUM POLYMER BALANCE CHARGE PROGRAM
CONNECTION DIAGRAM
This diagram shows the correct way to connect your battery to
the e6650 charger while charging in the balance charge program
mode only.
LITHIUM POLYMER BALANCE CHARGE PROGRAM
CONNECTION DIAGRAM
WARNING:
Failure to connect as shown in this diagram will damage this
charger.
The main battery leads must be connected along with the balance
lead connector as shown before charging your battery .

- 06 -
WARNING AND SAFETY NOTES
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.
WARNING AND SAFETY NOTES
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 input voltage is 11-18V DC/110-240V AC.
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. This warranty is not valid for any damage
or subsequent damage arising as a result of a misuse or failure
to observe the procedures outlined in this manual.

- 07 -
WARNING AND SAFETY NOTES
NiCd/NiMH
- Voltage level: 1.2V/cell
- Allowable fast charge current: 1C-2C (depends on the
performance of cell)
- Discharge voltage cut off level: 0.85V/cell (NiCd),
1.0V/cell(NiMH)
Li-ion
- Voltage level: 3.6V/cell
- Max. charge voltage: 4.1V/cell
- Allowable fast charge current: 1C or less
- Min. discharge voltage cut off level: 2.5V/cell or higher
LiPo
- Voltage level: 3.7V/cell
- Max. charge voltage: 4.2V/cell
- Allowable fast charge current: 1C or less
- Discharge voltage cut off level: 3.0V/cell or higher
LiFe
- Voltage level: 3.3V/cell
- Max. charge voltage: 3.6V/cell
- Allowable fast charge current: 4C or less
- Discharge voltage cut off level: 2.0V/cell or higher
Pb
- Voltage level: 2.0V/cell
- (Lead-acid) Max. charge voltage: 2.46V/cell
- Allowable fast charge current: 0.4C or less
- Discharge voltage cut off level: 1.75V/cell or higher

- 08 -
WARNING AND SAFETY NOTES
To avoid short circuit between the charge lead always connect
the charge cable to the charger first, then connect the battery.
Reverse the sequence when disconnecting.
Do not connect more than one battery pack to this charger at
any one time.
Never attempt to charge or discharge the following types of
batteries.
A battery pack which consists of different types of cells
(including different manufacturers)
Batteries that are not expressly stated by the manufacturer to
be suitable for the currents the charger carries during the
charge process.
Batteries installed in a device or which are electrically linked to
other components.
A battery fitted with an integral charge circuit or a protection
circuit.
A faulty or damaged battery.
Batteries that require a different charge technique from NiCd,
NiMh, LiPo or Gel cell (Pb, Lead acid).
Non-rechargeable batteries (Explosion hazard).
A battery that is already fully charged or just slightly discharged.
Please bear in mind the following points before commencing
charging.
Did you select the appropriate program suitable for the type of
battery you are charging?
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).
Did you set up adequate current for charging or discharging?

- 09 -
WARNING AND SAFETY NOTES
Have you checked that all connections are firm and secure?
Make sure there are no intermittent contacts at any point in the
circuit.
Charging
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 quick-charge 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 gold-plated should be fitted to both ends.
Always refer to the manual by the battery manufacturer pertaining
to 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.

- 10 -
WARNING AND SAFETY NOTES
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’s capacity by
the number of cells with total voltage stay the same. The voltage’s
imbalance may cause fire or explosion .Lithium battery is
recommended to charge in series.
Discharging
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.
Lithium batteries are recommended to be discharged partially
rather than fully discharged. Frequent full discharging should be
avoided if possible. Instead, charge the battery more often or use
a battery of larger capacity.Full capacity cannot be used until it
has been subjected to 10 or more charge cycles. The cyclic
process of charge and discharge will optimize the capacity of
battery pack.

- 11 -
PROGRAM FLOW CHART
PROGRAM FLOW CHART

- 12 -
INITIAL PARAMETER SETUP (USERS SET UP)
INITIAL PARAMETER SETUP (USERS SET UP)
As default this charger will be set to typical user settings when it is
connected to AC 110-240V or DC 11-18V for the first time. The
screen displays the following information in sequence and the user
can change the parameter on each screen.
e6650 recognize the cell count of Lithium battery
automatically at the beginning of charge or
discharge process to avoid from erroneous
setting by user. But deeply discharged battery
can be perceived incorrectly. To prevent the
error, you can set the time term to verify the cell
count by the processor. Normally, 10 minutes
are enough to perceive the cell count correctly.
For the battery of larger capacity, you may
extend the time term. But if you set the time
term to long for the battery of smaller capacity,
the charge or discharge process can be finished
within the time term with the erroneous cell count.
This may cause the fatal result. If the processor
USER SET
PROGRAM->
LiFe
V.Type 3.3V
LiPo/LiIo/LiFe
CHK Time 10min
INC
INCDEC
INCDEC
User setup starting screen.
The screen displays the nominal voltage of
Lithium battery. There are three kinds of Lithium
battery: LiFe(3.3V), Lilo(3.6V) or LiPo(3.7V).
This is very important so you have to check the
battery carefully and set it up correctly. If it is
different from correct value the battery may be
exploded during charge process.
If you need to alter the parameter value in the program, press
“Start/Enter” key to make it blink then change the value with “INC”
or “DEC” key. The value will be stored by pressing “Start/Enter” key
once.
-+

- 13 -
INITIAL PARAMETER SETUP (USERS SET UP)
NIMH Sensitivity
D.Peak Default
NICD Sensitivity
D.Peak Default
Temp. Cut-off
ON 80C
INCDEC
INCDEC
- +
INCDEC
- +
INCDEC
INCDEC
- +
INCDEC
INCDEC
- +
INCDEC
INCDEC
INCDEC
- +
INCDEC
- +
recognizes the cell count incorrectly at the
beginning of charge or discharge process, you
may extend the time. Otherwise, you had better
use with the default value.
This shows the trigger voltage for automatic
charge termination of NiMH and NiCd battery.
The effective value ranges from 5 to 20mV per
cell. If the trigger voltage is set higher, there is
a danger of overcharging the battery; if it is set
lower, there is a possibility of premature
termination. Please refer the technical
specification of the battery. (NiCd default: 12mV,
NiMH default: 7mV)
An optional feature using temperature probe
contacting the surface of battery, the temperature
cut-off can be on or off. If it is on, set the
maximum temperature at which the charger
should allow battery to reach during charge.
Once a battery reaches this temperature during
charge, the process will be terminated to protect
the battery.
Waste time
CHG/DCHG 5min
The battery becomes warm after cycles of
charge/discharge process. The program will
insert a time delay after each charge/discharge
process to allow the battery enough time to cool
down before beginning next cycle of charge/
discharge process. The valid value ranges from
0 to 60 minutes.

- 14 -
INITIAL PARAMETER SETUP (USERS SET UP)
Safety time
ON 120min
Key Beep ON
Buzzer ON
Input Power Low
Cut-Off 10.0V
When the charge process starts, the integrated
safety timer starts to run simultaneously. If error
detected or the termination circuit can not detect
whether the battery is fully charged or not, this
unit is programmed to prevent overcharging.
Please refer to the below statement to calculate
the timer you set.
Safe Timer Calculation
When charging NiCd or NiMH batteries, divide the capacity by current,
then divide the result by 11.9, set this number of minutes as the value
for safety timer setting. If the charger stopped at this time threshold,
about 140% of the capacity will have been fed into the battery.
For example:
Capacity Current Safety Time
2000mAh 2.0A (2000/2.0=1000)/11.9=84 minutes
3300mAh 3.0A (3300/3.0=1100)/11.9=92 minutes
1000mAh 1.2A (1000/1.2=833)/11.9=70 minutes
INCDEC
INCDEC
-+
INCDEC
-+
Capacity Cut-Off
ON 5000mAh
INCDEC
INCDEC
INCDEC
INCDEC
- +
INCDEC
- +
INCDEC
- +
The program provides maximum capacity
protection function. If the Delta-peak voltage
can not be detected or the safety timer times
out, the charge process will stop automatically,
when the battery reaches the user-set maximum
charge capacity,
The beep to confirm users' operation sounds
every time a button is pressed. The beep or
melody sounds at various times during operation
to confirm different mode change. These
functions can be switched on or off.
This function monitors the voltage of the input
battery used to power this charger. If the voltage
is lower than user-set value, the program will
end forcibly to protect the input battery.

- 15 -
LITHIUM (LIPO/LILON/LIFE) PROGRAM
LITHIUM (LIPO/LILON/LIFE) PROGRAM
The program is only suitable for charging/discharging Lithium(LiPo/
LiIon/LiFe) batteries with a nominal voltage of 3.3/3.6/3.7V/cell.
Different batteries have different charge technique. There are two
methods termed as constant voltage and constant current. The
charge current varies according to battery capacity and specification.
The final voltage is very important; it should precisely match the
voltage of the battery: LiPo is 4.2V, LiIon is 4.1V and LiFe is 3.6V.
The current and voltage of the battery should be correctly set.
When you want to change the values of parameters, please press
START/ENTER key to make it blink and then use DEC or INC to
change the value. Then press START/ENTER key again to store the
value.
The left side of the first line shows the type
of battery you choose. The value on the left
of the second line of the charger is current
user set, After setting the current and
voltage, press START/ENTER key for more
than 3 seconds to start the process.(charge
current: 0.1-5.0A, voltage: 3.7-22.2V).
CHARGING OF LITHIUM BATTERY
LiPo CHARGE
2.0A 11.1V(3S)
INCDEC
-+
INCDEC
-+
Batt type
Stop
Start
Enter
Start
Enter
‘>3 seconds’
This displays the number of cells you set up
and the processor detects.”R” shows the
number of cells detected by the charger
and “S” is the number of cells set by you at
the previous screen. If both numbers are
identical you can start charging by press
START/ENTER button. If not, press BATT
TYPE/STOP button to go back to previous
screen to carefully check the number of cells
of the battery pack before going ahead.
R:3SER S:3SER
CONFIRM(ENTER)
This screen shows the real-time status
during charge process. Press BATT TYPE/
STOP key once to stop the charge process.
Li3s 1.2A 12.59V
CHG 022:43 00682
Number
of cells
Charging
time
Charging
current
Battery
voltage
Charged
capacity

- 16 -
CHARGING LITHIUM BATTERY IN THE CHARGE MODE
CHARGING LITHIUM BATTERY IN THE CHARGE MODE
This charging mode is for charging Li-Po/Ion/Fe battery without
balance lead.
The left side of the first line shows the type
of battery you choose. The value on the left
of the second line of the charger is current
user set, After setting the current and
voltage, press START/ENTER key for more
than 3 seconds to start the process.(charge
current: 0.1-5.0A, voltage: 3.7-22.2V).
BALANCE CHARGING OF LITHIUM BATTERY
LiPo BALANCE
2.0A 11.1V(3S)
INCDEC
-+
INCDEC
-+
Batt type
Stop
Start
Enter
Start
Enter
‘>3 seconds’
This displays the number of cells you set up
and the processor detects.”R” shows the
number of cells detected by the charger
and “S” is the number of cells set by you at
the previous screen. If both numbers are
identical you can start charging by press
START/ENTER button. If not, press BATT
TYPE/STOP button to go back to previous
screen to carefully check the number of cells
of the battery pack before going ahead.
R:3SER S:3SER
CONFIRM(ENTER)
This screen shows the real-time status
during charge process. Press BATT TYPE/
STOP key once to stop the charge process.
Li3s 1.2A 12.59V
BAL 022:43 00682
Number
of cells
Charging
time
Charging
current
Battery
voltage
Charged
capacity
This function is for balancing the voltage of Lithium-polymer battery
cells while charging. In the balance mode, the battery needs to have
a balance lead to connect to the individual balance port at the right
side of the charger. And you need to connect the battery's power lead
to the output of charger.
Charging in this mode is different from the normal modes, because
the built-in processor monitors voltage of individual cell and control
input current fed into each cell to equalized voltage of individual cell.
CHARGING LITHIUM BATTERY IN THE BALANCE MODE

- 17 -
FAST CHARGING OF LITHIUM BATTERY
LiPo FAST CHG
2.0A 11.1V(3S)
INCDEC
-+
INCDEC
-+
Batt type
Stop
Start
Enter
Start
Enter
‘>3 seconds’
R:3SER S:3SER
CONFIRM(ENTER)
Li3s 2.0A 12.59V
FAS 022:43 00682
Number
of cells
Charging
time
Charging
current
Current
voltage
battery
Supplied
capacity
Charging current will become lower when it progress to the end of
charging. A specific CV process will be reduced to end the charging
process earlier. In fact, the charging current will goes to 1/5 when the
charging process comes to 1/10. Charging capacity will be little
smaller than normal charging, but charging time will be shortened
accordingly.
CHARGING LITHIUM BATTERY IN THE FAST CHARGE MODE
FAST CHARGING OF LITHIUM BATTERY
The value on the left side of the second lines
sets the charge current. The value on the
right side of the second lines sets the battery
pack's voltage. After setting current and
voltage, press STAR/ENTER for more than
3 seconds to start the process.
This displays the number of cells you set up
and the processor detects. “R” shows the
number of cells detected by the charger and
“S” is the number of cells set by you at the
previous screen. If both numbers are
identical you can start charging by press
START/ENTER button. If not, press BATT
TYPE/STOP button to go back to previous
screen to carefully check the number of cells
of the battery pack before going ahead.
This screen shows the real-time status during
charge process. Press BATT TYPE/STOP
key once to stop the charge process.

- 18 -
STORAGE CONTROL OF LITHIUM BATTERY
STORAGE CONTROL OF LITHIUM BATTERY
At this screen, you can set up the current
and voltage of the battery pack. Charging
and discharging will make the batteries
come to the voltage level of “Storage” state.
LiPo STORAGE
1.0A 11.1V(3S)
INCDEC
-+
INCDEC
-+
Batt type
Stop
Start
Enter ‘>3 seconds’
This screen shows the real-time status
charging. Press BATT TYPE/STOP key
once to stop the charge process.
Li3s 1.0A 12.59V
STO 022:43 00682
Number
of cells
Elapsed
time
Charge or
discharge
current
Current
voltage
battery
Supplied
capacity
This function is for charging/discharging batteries which are not used
at once. This program is designed for charging or discharging of
batteries of specific original state. They are classified by types: 3.75V
Lilo, 3.85V LiPo and 3.3V LiFe. The program will begin to discharge
if the original state of the battery exceeds the voltage level of storage.
CHARGING LITHIUM BATTERY IN THE STORAGE MODE

- 19 -
DISCHARGING OF LITHIUM BATTERY
DISCHARGING OF LITHIUM BATTERY
The value of discharge current on the left
can not exceed 1C, and the value on the
right can not be under the voltage
recommended by the manufacturer to avoid
deep discharging. Press START/ENTER for
more than 3 seconds to start discharging.
LiPo DISCHARGE
1.0A 11.1V(3S)
INC
INC
DEC
-+
INCDEC
-+
Batt type
Stop
Start
Enter ‘>3 seconds’
This shows the real-time status of
discharging, you can press BATT
TYPE/STOP key to stop discharging.
Li3s 0.4A 12.59V
DSC 022:43 00682
BATTERY VOL ERR
CELL LOW VOL
4.14 4.16 4.09
2.18 0.00 0.00
Number
of cells
Elapsed
time
Discharge
current
Battery
voltage
Discharged
capacity
The processor monitors voltage of each cell when the battery packs
are during its “storage” and “discharging” process. If voltage of any
cell is abnormal, e6650 will show error message and terminate the
program forcibly. So if there is battery damage or disconnection, you
can see the error message and press INC to know which cell is
damaged.
VOLTAGE BALANCING AND MONITORING IN THE
DISCHARGE PROCESS
The processor detects voltage of one cell is
too low.
The 4th cell was damaged. The value of
voltage may be zero if disconnection occurs.