HITEC RDX2 Pro Notice D'utilisation page 6

Warnings and Safety Notes
Charging
Before charging your batteries, it is critical that you determine the maximum allowable charge rate for
your batteries. The RDX2 Pro is capable of charging at high rates that may not be suitable or safe for your
particular batteries. For example, Lithium cells are typically safe to charge at 1C, or the total mAh÷1000.
A 1200mAh battery would have a 1C charge rate of 1.2 amps. A 4200mAh battery would have a 1C charge
rate of 4.2 amps. Some manufacturers are offering Lithium cells that can be charged at greater than 1C but
this should ALWAYS be verified before charging a Lithium battery at rates higher than 1C. Voltage is just
as critical as the charging amperage rate and this is determined by the number of cells in series, or "S". For
example, a 3S LiPo is rated at 11.1 volts ("S" multiplied by a single LiPo cell with a nominal voltage of 3.7
volts DC. 3 cells x 3.7 volts each equals 11.1 volts DC).
Connect the battery's main leads to the charger output: red is positive and black is negative. Keep in
mind that the gauge or thickness of your charging leads from the RDX2 Pro to your battery must be of
an acceptable current rating to handle the applied charge current. For maximum safety and charging
effectiveness, always match or exceed the main battery lead rating when assembling or selecting your
charging leads. If you charge a battery at a high current rate (amperage) with a charging lead not rated for
the chosen amperage, the wire could get hot, catch fire, short out and/or potentially destroy your battery
and the charger. When in doubt, always use a higher gauge wire (lower AWG number). It is common to see
charging leads constructed of 14AWG, 16AWG or 18AWG wire.
Always refer to recommendations from your battery manufacturer for your specific battery type and size
before initiating a charge or discharge process.
Do not attempt to disassemble or modify ANY battery packs.
Discharging
The RDX2 Pro discharging functions are for two specific purposes:
•
Refreshing the capacity of a Nickel-based battery that has lost capacity over time (NiMH or NiCd).
•
Reducing the voltage of a Lithium battery for safe storage.
Warning
LiPo & LiHV Charge/Discharge Cycling
Lithium batteries are known to reach full capacity after a break-in period of about 10 charge/discharge
cycles. We do not recommend you use the RDX2 Pro charger to do this; normal use and recharging will
achieve the same results. If you wish to perform a Lithium break-in on the bench with the RDX2 Pro,
discharging to minimum acceptable voltages and performing a balance charge at 1C maximum rate is
recommended. If you choose to break in your Lithium batteries under normal use, charging at only 1C for
6
the first ten cycles will help ensure full performance and service life from your Lithium cells.
LITHIUM CHEMISTRY BATTERY PACKS SHOULD ONLY BE DISCHARGED TO THEIR
MINIMUM SAFE VOLTAGE, NO LOWER. DEEP DISCHARGING A LITHIUM CELL WILL DO
PERMANENT DAMAGE. REFER TO THE STANDARD BATTERY PARAMETERS TABLE ON
PAGE 5 OF THIS MANUAL FOR MINIMUM DISCHARGE VOLTAGES.