Input Power
A. Connect the charger to the 12V DC power supply.
Connect the charger’s red alligator clip to the positive (+) terminal on the power source and the black alligator clip to the negative (-) terminal.
The charger will display “Input voltage” error message if the input is below 11V or above 15V. If this happens, please recheck the input power
supply to make sure correct power is present.
OR
B. Connect the mains lead to the Sigma EQ, then connect the AC plug to a regular AC100~240V wall socket.
Note: If AC power is being used for input power, do NOT try to connect the 12V DC power as well!
Output Battery Connections
Two 4mm banana sockets are located on the right side of the charger. Connect the battery main power leads to these sockets with the positive
(+) lead connected to the red socket and the negative (-) lead to the black socket. You may need to purchase an adaptor lead to suit the specific
connector on you battery and make this more convenient. The “No battery” error message will be displayed if trying to start charging without
connecting a battery to these sockets. The “Open Circuit” error message will be displayed if a battery becomes disconnected from the charger
while a function is in progress. A “Reverse Polarity” error message will be displayed if a battery is connected to the charger in reverse.
Note: In order to balance Lithium batteries during charge or discharge, please ensure that both the battery main power leads and the balancing
connector from the battery pack are connected to both 4mm output banana sockets and balancing port respectively. The balancing port
requires a short lead (supplied) and an adaptor board to suit your battery balance connector. Two types are supplied to suit Impulse (PQ),
Flight Power and Thunder Power batteries (TP). Other types are available as options (JST EH, JST XH).
If the main battery power leads ONLY are connected to the output banana sockets, without connecting the balancing connector to the
balancing port on the charger, the charger will charge or discharge the connected Lithium pack without balancing it.
5
Operation
When the charger is connected to the power supply the charger will show the battery mode that was last used.
If the battery TYPE button is briefly pressed, the present battery type (NiCd, NiMH, Lithium, or Pb ) will flash.
While the existing battery type is flashing, every time the battery TYPE button is pressed, the following modes are shown in order:
NiCd NiMH Lithum Pb NiCd
• If the other buttons are pressed, or nothing is pressed, the present battery type stops flashing.
• If the Battery TYPE button is pressed and briefly held, the recent & previous data will be shown until the Battery TYPE button is pressed.
• If the ENTER button is briefly pressed, a parameter which can be adjusted starts to flash and if the ENTER button is pressed again, the next
parameter starts to flash. If nothing is pressed for 3 seconds, the parameter stops flashing.
• Once the ENTER button is pressed and briefly held, the charger starts to charge or discharge according to the selected parameters.
