Ripmax Sigma EQ ECO II User manual

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CONTENTS
What’s New In Sigma EQ ECO II ............................................................................................................03
FOREWORD.....................................................................................................................................................04
Specifications.................................................................................................................................................04
Special features...........................................................................................................................................5-6
Cyclic Charging/Discharging.......................................................................................................................07
Lithium polymer balance charge program and connection diagram.................................................8
Warning and safety notes.........................................................................................................................9-13
Program flow chart..........................................................................................................................................
14
Program select user settings.................................................................................................................. 15-17
Safe timer calculation....................................................................................................................................17
Program select Lithium battery...................................................................................................................17
Charging of lithium batteries......................................................................................................................18
Charging lithium batteries in the balance mode....................................................................................18
Individual cell connection diagram (pin-assignment of 8-pin)...........................................................19
Fast charging of lithium batteries...............................................................................................................19
Storage control of lithium batteries............................................................................................................20
Discharging of lithium batteries...................................................................................................................20
Voltage balancing and monitoring in the discharge process............................................................20
Program select NiCd/NiMH batteries........................................................................................................
21
Program select Pb battery..................................................................................................................... 22-23
Program select Load Memory............................................................................................................... 24-25
Program select Extra Function............................................................................................................. 26-31
Warning and error information program............................................................................................. 31-33
Warranty and service.....................................................................................................................................34

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WHAT’S NEW IN SIGMA EQ ECO II
█Max charge current now reaches to 10A instead of 6A, that means it can speed up your charge by
increasing the charge current. (80W Limited)
█Max balance current increase to 460mA from 300mA. That means it can speed up the balance
charge of your lithium batteries.
█15 extra functions providing more convenience for your hobby time.
1>LANGUAGES: There are two languages which you can select (English and German).
2>CELL METER: You can test the voltage of each battery cell.
3>CAPACIT Y: Check the capacity of the battery.
4>IR: You can measure the per-cell internal resistance of the battery pack.
5>BALANCER: You can balance the voltage of each cell to preserve the performance of your
batteries.
6>DIGITAL POWER: Using the charger’s output as a DC power supply.
7>BRUSH MOTOR: You can easily break-in new bushed electric motors using a variable voltage and
running time.
8>FOAM HOT CUTTER: The charger acts as a convenient power supply for a hot wire foam cutter.
9>MOTOR/ESC/SERVO: The charger can output a PPM signal instead of your TX for your MOTOR/
ESC/SERVO. You can now see it’s working status.
10>USB PORT: Output 5V 3A can easily charge your mobile phone and tablet.
11>SERVO TEST: You can test a servo.
12>THRUST CALCULATOR: You can easily calculate the thrust of a propeller.
13>TEMP: The charger can measure an external temperature by using a temperature sensor,
(Optional).
14>VOLTAGE METER: You can measure the DC voltage of an object.
15>PPM TEST: You can test the PPM signal from an RX, checking for any issues between your
TX and RX.

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FOREWORD
Thank you purchasing the Sigma EQ Eco II balance charger. This product is a rapid charger with
a high performance microprocessor and specialised operating software. Please read this entire
operating manual before using this product. It covers a wide range of information on operating and
safety.
SPECIFICATIONS
Operating voltage range: DC 11.0~18.0 Volt or AC 240 Volt
Circuit power: Max.charge power 80W [DC Input]
80W [AC Input]
Max.discharge power 10W
Charge current range: 0.1~10.0A
Discharge current range: 0.1~2.0A
Current drain for balancing Li-po: 460mA/cell
NiCd/NiMH battery cell count: 1~16 cell
Li-ion/Li-Fe/Li-Po cell count: 1~6 series
Pb battery voltage: 2V~20V
Weight: 590g (Net Weight)
Dimensions: 180 x 145 x 57mm

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SPECIAL FEATURES
Optimised operating software
Sigma EQ Eco II features an AUTO function that automatically sets the current level while charging or discharging.
For Lithium batteries, it can help prevent overcharging which may lead to an explosion due to user error, and can
disconnect the circuit automatically and alarm when detecting any malfunction.
Many settings can be configured by the user.
Internal independent lithium battery balancer
Sigma EQ Eco II employs an individual-cell-voltage balancer. It isn’t necessary to connect an external balancer for
balance charging.
Balancing individual cells and battery discharging
During the process of discharging, Sigma EQ Eco II can monitor and balance each cell of the battery individually.
An error message will indicate and the process will be terminated automatically if the voltage of any single cell is
abnormal.
Adaptable to various type of lithium batteries
Sigma EQ Eco II is adaptable to various types of Lithium batteries, such as Li-ion, Li-Po, Li-HV and the new Li-Fe.
Fast and storage modes of lithium batteries
The purpose to charge a Lithium battery varies, “fast“ charge reduces the duration of charging, whereas “store“
state can control the final voltage of your battery, enabling the storage and protection of your battery over long
period of time.
Maximum safety
Delta-peak sensitivity: The automatic charge termination program is based on the principle of Delta-peak voltage
detection. When the battery’s voltage exceeds the limit, the process will be terminated automatically.

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Automatic charging current limits
You can set the upper limit for the charging current when charging your NiCd or NiMH batteries; It is useful for NiMH
batteries of low impedance and capacity in the “AUTO” charging mode.
Capacity limit
The charging capacity is always calculated as the charging current multiplied by the time. If the charging capacity
exceeds the limit, the process will be terminated automatically. You can set the maximum value.
Temperature threshold*
The batteries internal chemical reaction can 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 not included.
Processing time limit
You can limit the maximum total process time to avoid any possible unwanted damage to the battery if detecting
errors are unusual.
Input power monitoring
To protect a car battery used as DC input power from being damaged, its voltage is constantly monitored.
If it drops below the lower limit, the process will end automatically.
Data store / load
A maximum of five batteries data can be stored for the users convenience. You can keep the data
pertaining to each program setting of the battery for continuous charging or discharging. Users can
use these stored data settings 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 (NiCd & NiMH only).

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CHARGER LAYOUT
Input power socket
11~18V DC
Input power socket
100~240V AC
Update Port
Servo Output
Temperature Sensor Port
Scroll through the Main Menu
Stop any charge processes
LCD screen
Alter values
See the status of individual
cell in balance charge mode
Output charge lead
4mm banana plug
Balance lead sockets
JST-XH ports
Resume or start charge processes
Confirm an action
USB
Output

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LITHIUM POLYMER BALANCE CHARGE PROGRAM
CONNECTION DIAGRAM
This diagram shows the correct way to connect your battery to the Sigma EQ Eco II charger whilst charging in the
balance charge program mode only.
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. If using crocodile clips make sure they are unable to touch together!
Output charge lead 4mm banana plug
Balance lead sockets JST-XH ports
If necessary,
use an adaptor.
(Optional)

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WARNING AND SAFETY NOTES
These warnings and safety notes are particularly important. Please follow the
instructions for maximum safety or the charger and the battery can, at best, be
damaged, or worst 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 this 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 or 100-240V AC but not both at the same time.
This charger and the battery should be put on a heat-resistant, non-flammable and non-conductive surface.
Never place on a car seat, carpet or similar. Keep all flammable and volatile materials away from the
operating area.
Make sure that you know the specifications of the battery to be charged or discharged to ensure that it
meets the requirements of this charger. If the program is set up incorrectly, the battery and charger may
be damaged. It can also cause a fire or explosion due to over charging.
Always charge in well ventilated areas!
NiCd/NiMH Voltage level: 1.2V/cell - Allowable fast charge current:1C-2C (depends on the performance of the
cells) 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 - Fast charge current: 1C or less
Min.discharge voltage cut off level: 2.5V/cell or higher

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To avoid a short circuit between the charge leads, always connect the charge
cable to the charger first, then connect the power source.
Reverse the sequence when disconnecting.
Do not connect more than one battery pack to this charger at any one time.
Li-Po Voltage level: 3.7V/cell Max. charge voltage: 4.2V/cell - Allowable fast charge current: 1C or less
recommended. Consult the battery manufacturer for higher
Discharge voltage cut off level: 3.0V/cell or higher
Li-Fe Voltage level: 3.3V/cell Max. charge voltage: 3.6V/cell - Fast charge current: 1C or less. Consult the
battery manufacturer for higher
Discharge voltage cut off level: 2.0V/cell or higher
Li-HV Voltage level: 3.8V/cell Max. charge voltage: 4.35V/cell - Allowable fast charge current: 1C or less
Consult the battery manufacturer for higher
Discharge voltage cut off level: 3.0V/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