SkyRC e4 Balance Charger User Manual
Thank you for your choice of the SKYRC e4, 100-240V AC balance charger. This unit is simple to use but
its operation does require some knowledge on the part of the user. 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.
SKYRC e4 Charger is an economic, high quality 100-240V AC balance charger, designed for charging
LiPo and LiFe batteries from 2-4 cells in balance mode. The circuit power is 20W and max charge current
can reach to 3A. There are three kinds of charge current 1A/2A/3A that can be selected. You could select
the proper charge current according to battery capacity.
SKYRC e4 comes with the built in power supply. You can connect the AC power cord to the AC socket
(100-240V AC) directly.
Insert the AC power cord into the charger.
Insert the AC cord into a wall socket (100-240V). All LEDS will light for 1 second and the charge
status LED will flash green which indicates the charger is ready to charge.
Select the battery type LiPo/LiFe by the toggle switch.
Select the proper charging current 1A/2A/3A by the toggle switch.
Connect the battery main charge lead to battery socket which is in the front side of the charger and
battery balance wire to balance port which is in the right side of the charger.
The charger starts charging. The charge status LED and the cell status LED will glow constant red. If
the battery pack is 2-cell, Cell 1 and Cell 2 LEDs will glow constant red; if the battery pack is 3-cell,
Cell 1, Cell 2 and Cell 3 LEDs will glow constant red; and so on.
During the charging progress, when the charge
status LED glows constant red, the charger is
charging in CC mode; when the charge status
LED glows constant orange, the charger is
charging in CV mode;
When the cell LED is flashing, this cell is
discharging for balancing.
When the battery is fully charged, the charge
status LED will glow constant green.
Unplug the battery from the charger and the
charge status LED will flash green which
indicates the charger is ready to charge
Please refer to following steps to charge the battery,
- 1 -
- 2 -
Current Drain for Balancing
1A/2A/3A ± 10%
This diagram shows the correct way to connect your
battery to the e4 charger while charging in balance
Failure to connect as shown in this diagram will
damage this charger.
Battery Type Switch
Cell 2 LED Indicator
Cell 1 LED Indicator
Cell 4 LED Indicator
Cell 3 LED Indicator
Charge Current Switch
Charge Status LED Indicator
EXPLANATION OF LED STATUS
If the charger encounters a problem, all LEDs will flash red in sequence to alert you the errors. In this
case, please disconnect the power cord from the wall socket and unplug the battery from the charger.
* Error Message
LED green blinking
LED glows constant red
LED glows constant orange
LED glows constant green.
LED glows constant red.
LED flashes red
The charger is ready to charge.
The charger is charging in CC mode.
The charger is charging in CV mode.
The charging process finishes.
The cell is charging.
The cell is discharging.
Charge Status LED
Cell Status LED