HITEC multi cahrger X4 AC Plus Instruction Manual page 9

Before you Start Charging or Discharging your Batteries Consider the
Following
• Did you select the appropriate program suitable for the type of battery you are charging?
• Did you set up adequate current for charging or discharging?
• Have you checked the battery voltage? Lithium battery packs can be wired in parallel
and in series, i.e. a 2-cell pack can be 3.7V (in parallel) or 7.4V (in series).
• Have you checked that all connections are firm and secure? Make sure there are no
intermittent contacts at any point in the circuit.
Standard Battery Parameters
LiPo
Nominal
3.7V/cell
Voltage
Max Charge
4.2V/cell
Voltage
Storage
3.8V/cell
Voltage
Allowable
≦1C
Fast Charge
Min. Discharge
≧3.0V/cell
Voltage
Charging
During the charge process, a specific quantity of electrical energy is fed into the battery.
The charge quantity is calculated by multiplying charge current by charge time. The
maximum permissible charge current varies depending on the battery type or its perfor-
mance, and can be found in the information provided by the battery manufacturer. Only
batteries that are expressly stated to be capable of quick charge should be charged at
rates higher than the standard charge current.
Connect the battery to the terminal of the charger. Red is positive and black is negative.
In the event there is any significant resistance in the battery cable and/or connector, the
charger will not be able to properly detect the resistance of the battery pack resulting in
an error. It is essential in order for the charger to operate properly that the battery charge
leads should be of adequate quality for the size of the battery.
Always refer to the manual by the battery manufacturer pertaining to charging methods.
Operate according to their recommended charging current and charging time. Lithium
batteries, in particular, should be charged strictly according to the manufacturer's
instruction.
Pay close attention to the connection of lithium batteries.
Do not attempt to disassemble the battery pack.
Please take note that lithium battery packs can be wired in parallel and in series. In the
parallel connection, the battery's capacity is calculated by multiplying the single battery's
capacity by the number of cells, bearing in mind that total voltage stays the same. If the
voltage is imbalanced, it may cause a fire or explosion. Lithium batteries are always
recommended to be charge in series.
WARNINGS AND SAFETY INFORMATION
LiIon LiFe
3.6V/cell 3.3V/cell
4.1V/cell 3.6V/cell
3.7V/cell 3.3V/cell
≦1C ≦4C
≧2.5V/cell ≧2.0V/cell
NiCd MiMH
1.2V/cell
1.2V/cell
1.5V/cell
1.5V/cell
n/a
n/a
1C-2C
1C-2C
≧0.85V/cell ≧1.0V/cell
Pb
2.0V/cell
2.46V/cell
n/a
≦0.4C
≧1.75V/cell
07