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SIGMA EQ CHARGER
Thank you for purchasing this Sigma EQ charger. We are sure you will be pleased with its performance and features. The Sigma EQ is a high
performance unit for charging, discharging and cycling batteries at home or the field. With a built-in Lithium Cell Balancing System, it is just as
versatile as it is practical. In order to ensure that you obtain the maximum from its operation, please read the following instructions carefully.
Special Features
• Input voltage is 11~15V DC, or AC 100V ~ 240V / 50 ~ 60Hz
• Capable of charging and discharging 1 - 14 NiCd or NiMH cells, 1 - 6
Lithium-Ion, Lithium-Polymer or LiFePO4 cells or 2 ~ 12V Lead-acid (Pb)
batteries
• Adjustable charge current (0.1A - 6.0A).
• 2C charge current available for Lithium Polymer batteries
• Adjustable discharge current (0.1A - 1.0A). Auto limited to maintain 5W
maximum.
• “Zero Delta V” peak detection for NiCd and NiMH batteries
• “Constant Current / Constant Voltage” charge method for Lithium-Ion/Po,
Li-Fe batteries and Pb batteries.
• Pack Cycling (Charge to Discharge / Discharge to Charge)
• 2 -line, 16 character, blue backlit, LCD makes the screen extremely clear
and legible.
• Built-in intelligent balancing circuit is designed to individually balance
each cell on the connected lithium battery pack within the tolerance of
5mV during charge or discharge.
• Balancing plug adaptor boards are supplied to suit Impulse, FlightPower
and Thunder Power batteries. Optional adaptors for JST XH and EH
plugs are available.
• Voltage monitoring feature shows each actual cell voltage on the screen
during balancing.
• Various warning messages for incorrect input voltage, wrong connections,
unsuitable battery condition and reverse polarity on output.
• Packaged in a rugged, extruded aluminium case.
Specifications
Input Voltage
11.0~15.0V DC, 100V~240V AC / 50~60Hz
Battery Type & Cells 1~14 Nickel-Cadmium cells
1~14 Nickel-Metal Hydride cells
1~6 Lithium-Ion or Lithium-Polymer cells (3.6V or
3.7V respectively)
1~6 LiFePO4 cells (3.6V)
1 - 6 Lead-Acid cells (2V per cell)
Battery Capacity
100mAh ~ 6000mAh adjustable ONLY for
Lithium-Ion, Lithium-Polymer and LiFePO4
Charge Current
0.1A ~ 6A in 100mA steps
Max Discharge Current 0.1A ~ 1A in 10mA steps (auto limited to 5W max)
Trickle Charge Current 0 ~ 200mA
Balancing current
Max. 280mA
Charge Termination
“Zero Delta V” peak detection for NiCd/NiMH
“Constant current / constant voltage” for Li-Ion/Po
LiFe and Pb
Delta Peak Sensitivity
5mV ~ 25mV for NiCd & 3mV ~ 25mV for NiMH
batteries per cell
Cycling
Charge to Discharge / Discharge to Charge
