HITEC X4 AC Plus: Four Port ACDC Multi-Charger User Manual

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This screen, you can set up the current and voltage of the

battery pack. Charging and discharging will bring the batter-

ies to the storage level.

This screen shows the real-time status of the charge or

discharge process. Press the

BATT TYPE/STOP key once to

stop the charging process.

The setting of the discharge current on the left cannot exceed

1C, and the setting on the right cannot be under the voltage

recommended by the manufacturer to avoid deep discharg-

ing. Press the

START/ENTER key for more than 3 seconds to

start discharging.

This shows the real-time status of discharging; you can press

the

BATT TYPE/STOP key to stop discharging.

Charging NiCd or NiMh Batteries

This program is for charging NiCd/NiMH batteries typically

used in an R/C model application. Press the START/ENTER

key until the parameter you want to change begins to blink

then use the INC or DEC keys to change the value. Press the

START/ENTER key to store the setting.

This screen shows the real-time status of charging. You can

press the BATT TYPE/STOP key to stop the charge process.

NOTE

During the discharge process the X4 AC Plus’s Microprocessor monitors the voltage of

each cell during the Storage Mode or Discharge process. If the voltage of any cell is

abnormal, the charger will display an error message and immediately terminate the

program. Before disconnecting the battery review the error message then press the INC

button to display which cell is.

Charging Lithium Batteries in the Storage Mode

The Storage Mode function is for charging/discharging batteries that will not be used

immediately or that will be stored for a period of time. The program is designed for charg-

ing or discharging batteries to a specific voltage level depending on the type of battery

(Li-ion = 3.75V, LiPo = 3.85V and LiFe = 3.3V) The program will begin to discharge if the

original state of the battery exceeds the voltage level for storage.

Lithium batteries are recommended to be discharged partially rather than fully. Frequent

full discharging should be avoided if at all possible. Instead, charge the battery more often

or use a battery of larger capacity. Full capacity cannot be reached until it has been

subjected to 10 or more charge cycles. The cyclic process of charge and discharge will

optimize the capacity of the battery pack.

There are two methods of charging NiCD and NiMh batteries, Manual or Auto Mode. When

in the NiMh or NiCd Program Select screen you can change modes by pressing the

START/ENTER key until the current field begins flashing then press INC and DEC simulta-

neously to switch between Auto and Manual Mode. using the charge current you set up. In

the “auto” mode, you should set the upper limit of the charge current to avoid damage caused

by excessive charge current. This is especially important for low quality batteries that have

low resistance and capacity. In the “manual mode” the charger will only charge at the current

you set. Note the following charger / discharge specifications for NiCd and NiMh Batteries.

Nominal Voltage level: 1.2V/cell

Allowable Fast Charge Current: 1C-2C (depends on performance of cell)

Discharge Voltage Cut Off Level NiCd: 0.85V per cell

Discharge Voltage Cut Off Level NiMh: 1.0V per cell

Error Message Display

CHARGING/ DISCHARGING AND CYCLING NiCd OR NiMh BATTERIES

This screen shows that the processor detected the voltage of

one on the cells is too low.

This screen shows the 4th cell was damaged. If the cell is

disconnected or not present the reading of the voltage will be

zero.

Error Message Display

INC

This screen shows that the processor detected the voltage of

one on the cells is too low.

This screen shows the 4th cell was damaged. If the cell is

disconnected or not present the reading of the voltage will be

zero.

CHARGING LITHIUM CHEMISTRY (LiPo/Lilo/LiFe) TYPE BATTERIES

DISCHARGING LITHIUM CHEMISTRY (LiPo/Lilo/LiFe) TYPE BATTERIES

Number

of Cells

Charge or

Discarge

Current

Battery

Voltage

Supplied

Capacity

Elapsed

Time

DEC INC

‘>3 seconds’

Batt Type

Stop

Start

Enter

INC

‘>3 seconds’

Batt Type

Stop

Start

Enter

Number

of Cells

Elapsed

Time

Discharge

Current

Battery

Voltage

Discharged

Capacity

DEC INC

‘>3 seconds’

Batt Type

Stop

Start

Enter

Battery

Type

Elapsed

Time

Charge

Current

Battery

Voltage

Charged

Capacity