HITEC X2-400: DC/DC Dual Port Charger - Manual (Page 16)

14
‘>3 seconds’
Charging Lithium Battery in the Charge Mode
These methods for charging LiPo/Li-Ion/LiFe batteries without a balance lead.
The first line on the left side of this screen shows the type of
battery chosen. The second line shows the user set current
on the left and the user set voltage on the rights. After setting
the current and voltage, press the START/ENTER key for
more than 3 seconds to start the process (charge current
range: 0.1 - 20.0A, voltage range: 3.7-22.2V).
The next display shows the number of cells you set up as ”R”
and the number of cells the processor detects as “S”. If both
numbers are identical, you can start charging by pressing the
START/ENTER button. If not, press the BATT TYPE/STOP
button to go back to the previous screen to carefully check the
number of cells of the battery pack before proceeding.
This next screen shows the real-time status during the charge
process. Press the BATT TYPE/STOP key once to stop the
charge process.
NOTE
When you want to change the settings, press the START/ENTER key to make it blink,
then use the DEC or INC key to change the setting. Then press the START/ENTER key
again to store the setting.
A Lithium battery is charged at a
constant current until it reaches the
final charge voltage of 4.2 V per
cell (B). After this point the voltage
is kept at a constant level, and the
residual charge takes the form of a
declining current curve (C) until the
cut-off point (D) is reached. Charge
current = C/10. At this point you can
disconnect the battery from the
charger, as it is ready for use.
The final voltage of charge process is also very important; it should be precisely
matched with the charged voltage of the battery. They are 4.2V for LiPo, 4.1V for Lilon,
and 3.6V for LiFe. The charge current and the nominal voltage for the cell count on the
charge program must always be set correctly for the battery that is being charged.
Refer to the chart on page 7 for standard lithium battery parameters
CHARGING LITHIUM CHEMISTRY (LiPo/Lilo/LiFe) TYPE BATTERIES
DEC INC DEC INC
Batt Type
Stop
Start
Enter
Start
Enter
Number
of Cells
Charging
Time
Charging
Current
Battery
Voltage
Charged
Capacity
4.2V V
A
Ah
A B C D
t
V/A/Ah