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

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Optimized Operating Software

The software in X4 AC Plus automatically controls the current rate during the charging or
discharging process. This feature can prevent the user from overcharging their batteries
which could lead to damage or injury. If the charger detects a malfunction, the circuit
automatically disconnects and an alarm will sound, The operating functions of the X4 AC
Plus are controlled through a two-way communication link in order to maintain maximum
safety with minimal errors. All of these functions and settings are easily configured by the
user.

Internal Independent Lithium Battery Balancers

Each channel of the X4 AC Plus employs an individual-cell voltage balancer eliminating
the need for an external balancer for balance charging.

Balancing Individual Cells during Battery Discharging

During the process of discharging, the X4 AC Plus can monitor and balance each cell of
the lithium battery individually. If the voltage of any single cell is abnormal, an error
message will display and the discharge process will automatically end.

Charges Most Popular Lithium Batteries

The X4 AC Plus is compatible with the three most common Lithium chemistry batteries,
Li-Ion, LiPo and LiFe.

Multiple Lithium Battery Charge Modes

The X4 AC Plus’s programming allows for Fast Charge, Balance Charge or Storage
Charge Modes for LiPo, Li-Ion, and LiFe batteries.

• Fast Charge Mode: Reduces charging time, but does not balance the cells, this

mode only charges the battery to approximately 90% capacity.

• Balance Charge Mode: Monitors individual cell voltage, keeping the cells within an

acceptable voltage range and charges the pack to peak capacity.

• Storage Charge Mode: Used for long-term battery storage. Adjusts the voltage

level so the battery will not be damaged during long term storage.

Delta Peak Technology for Maximum Safety

The automatic charge termination program utilizes Delta-Peak voltage detection.
When the battery's voltage exceeds the threshold, the charge process is terminated
automatically.

Automatic Charging Current Limit

The maximum charge rate can be manually set when charging NiCd or NiMH batteries.
The X4 AC Plus will auto-detect when the batteries are fully charged and shut off, even
with low impedance NiMH packs.

Capacity and Processing Time Limit

The charging capacity is calculated as the charging current multiplied by time. If the
charging capacity exceeds the maximum limit set by the user, the process will terminate
automatically. Additionally the user can set the maximum amount of charging time. If the
charging time exceeds this limit, the process will terminate automatically.

Temperature Threshold*

The battery's internal chemical reaction causes the temperature of the battery to rise
during the charging process. If the temperature exceeds the limit, the charging process
will automatically terminate.
* This function is available by connecting an optional temperature probe, which is not
included in our package.

10 User Customizable Presets

The X4 AC Plus features 10 individually customizable presets so the user can store the
charge and discharge parameters for any particular battery type. These presets can be
recalled for the desired battery type without the need for any additional programming.

Cyclic Charging / Discharging

Batteries can be set to automatically Charge/Discharge or Discharge/Charge up to a
maximum of 5 cycles.

PC Based Analysis Using USB Communication*

The Hitec X4 AC Plus offers a PC-based program which can analyze the characteristics
of the battery via a USB port. It shows a graph of voltage, current and capacity curves. It
also displays the individual voltage of each cell in the lithium battery pack.
* Using optional PC-LINK USB Adapter (sold separately) and software that can be
downloaded from www.hitecrcd.com

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